Ah! I thought de meant Deutschland
*lysergic acid diethylamide
andypugh acid would be a step up
they got comcast in Germany?
Thanks toastydeath. I thought I did quite well, when I started typing I only knew as far as Lysergic, and couldn't spell that.
* toastydeath golf clap
Has anyone here tried using one of these USB-digital IO chips? http://www.delcomproducts.com/productdetails.asp?productnum=902770
They are very cheap ( $8 ) but the $66 postage is a bit of a barrier to purchase.
andypugh $66 postage!
Aye, from NY to the UK
andypugh ehere you live he dark side of the moon?
andypugh, looks like a cypress part get in uk
andypugh there good suppliers in UK
I was surprised. Plus a $5 handling charge for the overseas order.
farnell or rs probably
Aye, they don't make any attempt to hide the fact it is a cypress part, but it comes ready-programmed to Just Work as a HID USB device (which probably means it would plug straight into EMC too)
RS don't sell it, as far as I can see
I bet the app notes for the chip tell how :)
I get the impression it is a matter of flashing firmware.
There's a fw based usb for AVR
[00:22:04] <Jymmm> http://www.obdev.at/products/vusb/index.html
£2 from Farnell, unprogrammed. The programming bit sounds like more bother than I want.
[00:22:27] <andypugh> http://www.farnell.com/datasheets/43425.pdf
down the rom from bittorrent
It's usb 1.1, but al firmware based, no added usb chips needed
Yes, but, well, err. I only want a USB parallel port.
Not for driving motors you don't
I have a widget I made for work that lets me turn a knob, have my laptop read the encoder switch and change the engine injection timing on the fly. But my new laptop has no parallel port....
any cardbuss or pcmcia slots?
I think so.
ever get the idea that there is some sort of a conspiracy to stop people from tinkering anymore?
Then you can use one of those. Those are REAL paraports.
Realtime performance is irrelevant, incidentally, it is read by an Excel macro
Since when does excel run on ununtu?
This is the work laptop.
andypugh: where are you?
Oh, you don't want to mail order anything to there.
They screw you left and right on all the fees.
is cheap enough. I wonder if it appears as a real pin-addressable parallel port?
you would have to check the drivers
I was hoping not to need drivers. They don't like us installing anything. (which is why I do all my software development in Excel)
[00:32:32] <bluntz_> http://www.sparkfun.com/commerce/categories.php?c=20
Well, even under DOS you need to use card and socket service driver to access any PCMCIA device.
card bus enabler to be specific.
My Fuji laptop has REAL serial/paraports on it
*I* don't think I've ever attempted to address a paraport under windows before.
directly that is.
andypugh: You could buy something locally that has a liberal return policy and try it out under a LIVECD and see if it's detected.
Well, I cheated using inpout32.dll, and then with a function declaration in VBA it is as simple as Out(888, 255) or in(889, A)
Surprisingly you can poll the parallel port at 100kHz in an Excel macro. Except when windows decides something else is more important every few seconds.
Not something I ever wanted to know.
andypugh Windows really can let you hang outto dry sometimes can't it?
it is like having Mr. Magoo for a data assistant or something
It was disappointing when I was trying to synthesise cam and crank sensor signals for a test rig. In the end we cobbled together a realtime box from spare D-Space parts.
Windows cultivates excellent patience
The sparkfun site looks fascinating, but I can get the whole thing pre-assembled from a UK source for about the same money.
[00:44:17] <andypugh> http://www.active-robots.com/products/accessories/usb-modules.shtml
andypugh: does it HAVE to be paraport? Or just any I/O ?
Just any digital IO that I can read easily in VBA
IMNSHO.... FSCK VBA
andypugh glue an electric eye to your screen :)
However I like the Delcom one as it was a USB HID device, so looked like it would plug straight in to EMC as a pendant controller.
VBA is what I have, and what I am pretty good at using. (We run all our dyno testing with a VBA macro I wrote)
say goodnight Gracie
jt-plasma: G'Night ya oky form the stoky!
Aye, time for me to sleep too.
MarkusBec is now known as MarkusBec_away
* Jymmm lol @ toastydeath... you're so silly
time for me to wake up up and say "bloody hell, it's still only 2am"
I can hear a milkman up already. gizza job, I can do that
hehe. I describe my machine on this channel, and everyone says "you're not making it strong enough" and then I describe it on #reprap and everyone says "you're making it too strong, way overkill dude"
MattyMatt reprap is goo
except for the motors, they agree mine are underpowered
MattyMatt what kind of motors?
tinker toy + a glue gun.... what do you expect?!
Superior Electric. look like 1970s stock
I got two of them
they're not bad
what kind of drivers you using?
I got 4 for 12quid on ebay
I've only run mine in unipolar I bet they'd be pretty nice bipolar
they'll be the first things I'll try to run bipolar
MattyMatt motors are only a small part of the whole money equation and the bigger the motor the higher the costs go
3.5 A, bipolar only I think which is a bit of a pita as I have a 6 wire motor pulled from a dot matrix too
MattyMatt that the reprap board?
dunno what they use. this is the 4 axis board from Mega Supply on ebay
MattyMatt so what sort of performance you feel you're getting out of it?
well I paid for it early last week, and it hasn't got here from "UK, England" yet
HK more like
MattyMatt what power supply will you be using PC discard?
in the meantime, my woodwork is getting more epic. now I'm toying with stealing the gas strut of my hatchback car for the dust lid
I'll probably just use the 12V off the same psu I power the cpu with. it's a k6-2 so the mobo uses mainly 5V
MattyMatt yes I'm not sure how much 12V computer PSUs put out
new ones, or ones for P4, have plenty of 12V
MattyMatt beyond that your motors are how many volts?
mine are 11.2 I believe
5V mine say
still might want to overvolt them more though for best performance
I read that as 5V average. chopper drivers
with a current limiter 20 I'd think would be minimum
until you reach breakdown as long as current is limited all is well
trouble I'm having is field speed
steppers are hell inductors
but you pump them full of volts you can get faster flux
I'll say this if you're not happy with your performance don't get new motors boost your supply voltage
I'll be happy if it moves my table at all with these ones
because those motors can perform well
I'll put 2 in gang if they don't
with steppers power isn't the issue speed is
one each end of the screw
or power at speed
usually 15-20X rated voltage.
skunkworks heh lets not have him burning the house down right off
but yeah to get inductors to move you have to really shock them
I don't mind getting bigger motors later, because I have plenty of uses for spares for other robots
MattyMatt the bad news there s you're going to need another power supply for them
MattyMatt so just get it for little motors first
and they'll probably do the job for you
yeah I'm making a wooden meccano set, so I can rebuild it many times
seen any old stereos kicing around?
kicking around even
high wattage stereos
they got nice transformers in them :)
heavier is better
I've already thought of that, but none of the drivers take advantage of the +/- audio psu
heh you just don't use the middle
you call - gnd
they should do, as they are usually full-bridge just like a high power audio amp
I'm talking ripping something apart and building a PSU
let me find pic of last PSU I built
a good audio amp PSU already has nice characteristics for a stepper motor
I'd use it intact
hmm it can
same sort of job really. high power low impedence inductive load at low to med freq. only diff is you're moving a leadscrew instead of air
audio amps filter out 0hz, but that's easily snipped
I didn't know that about them
DC offset adjust. it copes with 1Vpp single rail inputs
oh you mean filter capacitors?
don't want to push DC into a speaker
speakers don't like DC :)
those i am aware of
I've built a few audio amplifiers
hey does this work?
[03:02:11] <pfred1> http://www.instructables.com/file/FQEUXTTG1BBHIWI/
afaics, they are the only thing stopping an audio amp working
others here advised me not to waste time & good amps trying it :)
MattyMatt well there is a PSU ithat runs the audio amp
and it'd work
it's still a good amp
running the driver off the amp output wouldn't
oh no I'm talking junk
I got a pile of old stereos
most people flip on tape monitor and thats all she wrote!
they think its broken and throw the unit out
so not needing dozens of stereos I take most of them apart for parts
I do keep some of the nicer ones
mine has all 4 outputs working, but a friend has a similar one with 2 dead outputs (one left, one right, luckily). I may swap him and butcher his for the psu
yeah how many watts it rated for?
100 at least. 4U black thing. mine is Sony his is JVC I think
yeah that'd be the ticket
probably get a good 45-65 V out of the transformer
have to find the right taps
maybe only use the center tap as your top voltage
you get to see the picture?
yeah if it's 36-0-36 I have the choice. I think the driver board is 36V max tho
that is where the gadget in the picture comes into it all
it is called a voltage regulator
it takes a higher voltage and drops it for you
that particular one can take a 40V input and output 2-38V adjustable
no it does it linearly
* MattyMatt puts BIG heatsink on 78M36
there is an LM723 voltage regulator hooked up to three power transistors
I've load tested it to 8 amps
it didn't break much of a sweat
it is current limited too
which can be nice
let me see if I can find the schematic of it
yeah I could do that
no need for schematic. I know how regulators work
I'm even starting to grok switch mode :)
thing is sometimes switchmode messes up choppers
being as it is a chopper
yeah I've heard
which is why linear is where its at
otherwise I'd be looking at universal laptop psu
why regulate it at all, if it's just for the motors?
this where I got the schemo from: http://hmin.tripod.com/als/andysm/drawings/supplies/ps2-30v.gif
I built a couple on their page this one is nice
[03:14:34] <pfred1> http://hmin.tripod.com/als/andysm/pages/analogs3.html
its a honker!
straight rectified & smoothed should do, with one of those multifarad caps they use for car audio
MattyMatt the beer can cap in my PSU is only 32,000uF
car audio people are usually stupid
or just idiots I donno
holding torque = bass response :)
sure if you can get just the right transformer you're set!
I've done a lot of electronics scrounging over the years and getting the right transformer can be hard sometimes
so adjustable PSUs can come in handy
must be why 've built dozens of them now ...
I know it. I couldn't find a 22V one for Atari mono screen so I used 32V one with a 60W light bulb in series
worked OK :)
heh the old lightbulb as a dropping resistor trick
some guy on that first website is using lightbulbs as droppers for his stepper drivers
fuse & indicator in one
one of my motors needed a 32 watt dropper
with one drive I made
I didn't run that one too long
but seriously to get maximum performance out of your motors you're going to have to over volt them
yeah I was planning to. only real constraint is temp
most steppers rated for like 140c
and as the coils are all in the stator, the case temp is close to coil temp
which is burning hot!
not wood-burning hot thankfully
no just hand burning hot
but you shouldn't run that hot
and fans are cheap
yeah one fan per motor, and I'll run them slow until I can mill fins for the motors :)
too bad stepers don't run fast enough to cool themselves
my best to date has been 2500 RPM
but at that I doubt it could have run a fan blade
a 6" fan would shift air at that speed
yeah but the stepper didn't have the torque there
you could gear it up too.
thats the rub with steppers its speed or torque
you don't get both
least not at the same time
which is why servo companies do a healthy business
servos are not as scary as people think :)
skunkworks I got a couple
skunkworks but I'm doing this stepper stuff first
encoding is a bit scary
but I'm certainly gonna try webcam-watching-vernier
no scarier than not knowing if you've missed steps or not
people with their glass scales
yeah I want encoding just for convenience too, so I can use the handwheels in the middle of a job
I been using nothing but handwheels all my life
I don't know how to ask without sounding pedantic, but when people say vernier do they mean dial caliper? digital caliper? any caliper? I really doubt everyone but me uses exclusively vernier calipers
cradek vernier calipers have a graduated scale on them like a ruler
I want to have shafts bringing all 3 axes to the front of the table for the giant etch-a-sketch effect
pfred1: I know exactly what a vernier is - but I think people commonly call other things "verniers" and I wonder what they are
cradek I guess like venetian blinds or something the term means
by vernier I mean screwing a ruler to the edge of the table, and a small 0.9mm vernier to the frame
I know older folk that use 'verniers' for all of the above..
I always took it to mean graduated
I had vernier calipers damn they took foever to read
vernier is the thing where a graduation of N marks slides against a graduation of N+1 marks and you see which marks align
they are found on calipers and also many other things
I'm comfortable with plain vernier caliper
skunkworks: so it means "any kind of caliper"?
I mean in this common usage I keep seeing
on the mm scale anyway. the inch one wrecks my head
MattyMatt nah too inaccurate for me too subject to opinion
I just ot some cheap assed digital calipers man they spoil me
0.1mm is plenty accurate enough for woodwork, but I'll get a digital one for metalwork when I'm ready
thing measures to .0005
MattyMatt: are you talking about a webcam looking at a digital caliper in place of an encoder?
best elcheapo encoders I've seen have all involved strings and dissected computer mice
nope, I'm talking about webcam looking at the ruler and the index+vernier
we have a 4ft vernier caliper... (yes vernier).
what a wild idea
as image-analysis problems go, it's a simple job
computer mice are like 2400 DPI and stuff
OCR to read the numbers on the ruler, simple best-fit to read the ticks
hopefully it'll work with sawdust on it
all I want from my first machine if an X-Y plotter
so I can mask PCBs directly I'm tired of ironing
cradek: patch amended to remove debugging prints, what do i need to do next? http://www.panix.com/~dgarrett/stuff/0001-Numbered-parameters-for-current-tool-items.patch
toner transfer never worked too reliably for me
last pcb I made was drawn with a pen :) I want to mill them to save etching
copper mills like crap
its sticky and stringy
but hey we all got dreams
pcb milling appears to work very well
I know people do it but I won't be one of them
nah it can't touch etching
milling pcbs works super great IMO
if it was any good commercial board houses would all be doing it
I hate hate hate etching
if the mask is on right whats the problem?
big vats of chemicals
2 minutes and rinse
I always had to thick tin everything because the mask was scratched
I never make a board over eagles freebie limit
mill + drill = win
who drills these days tho? :)
so i use an old frozen entree plastic to etch in
I hate SMT
I had access to darkrooms, but I never got into photo etching. chems too expensive
yeah but its the stuff
I guess the really big boys litho it all
but i never need that many boards
I coulda done that for one-offs. I had access to process cams, bromides + developers. I coulda done 2ftx2ft boards if I'd wanted (to spend that much)
dgarr: still building.....
I have a dedicated mini high speed drill press for drilling boards that goes easily enough for me
the beauty of doing cnc trace isolation is you can just drill while you already have the board there - you get the drills perfectly centered because you just cut the pads!
cradek I've no problems drilling out PCBs
drilling by hand, temporary blindness sets in at 30 holes, drill breaks at 40 :-)
with poppa's help (mounting his process cam sideways) I coulda done 6ft square litho negs
dunno how he developed those tho
cradek not with the right machine
pfred1: for me, right machine is little cnc mill I guess... drills never break on it.
yeah, right place, right speed, upright
cradek yeah I don't have a little mill
cradek only a big one :)
I've got both - it's nice :-)
spindle speed too slow on it to drill PCBs
you only need 2" of Z to turn an XY plotter into a pcb mill
maybe 3" would make bit changing easier :)
I donno I have a mini drill press and I don't mind drilling out PCBs on it
it works well and goes quickly
3d pick & place. no pcb just components in a matrix of copper
dgarr: with no tool loaded, I can set #5403 to nonzero, and when I read it back, it's the nonzero value. However, issuing G43 does not apply that offset. [to be fair, I'm not sure what it should do, just that this seems odd]
MattyMatt the trouble is to get that 2" is a lot of overhead for Y
MattyMatt if you going to go through all that trouble might as well build something more useful
the weight of the Z motion isn't more than the spindle usually
MattyMatt hmm must be a design I'm unfamiliar with all I've seen Y carries Z
a low gantry is naturally stiffer than a high one, so there are advantages to limited Z, but yeah mine is 200mm travel
I call the gantry X on mine, and the table Y
I call left and right X and forward and backward Y
yeah, that's how my machine sits on the desktop :)
it's all relative
wih a moving table you can not carry any axis on another with just an X-Y
desktop ha. I'll be ready to bolt the legs on soon
because you can use a fixed gantry
this is pretty much what I'm doing http://www.solsylva.com/cnc/13x13x5.shtml
except I've made huge L shaped sides instead of bolt-on uprights
I figured I should take advantage of plywood's happiness at L shapes
hmm I've never noticed
I'm usually happy when it comes out square
it's happier than MDF or wood. they would split under tension
a 90deg in plywood will stay 90deg
so these sides will be the squares I use to align the whole machine
yeah I made one crappy table but I've decided it needs a redo
tried to make a moving gantry and it is too rough
fixed is better
I've decided to enclose mine now. I need some perspex
why enclose it?
noise and dust
that is what machines are suppposed to make
not in momma's house they're not, altho she hoovers
yeah I do y work in my garage
make all the noise and dust i want to
I got a 14" table saw in the house if I want to make dust :)
encased in perspex?
I've seen CNC routers with vacuums attached
seems reasonable enough to me
I've only used that for straightening beams. it's too fierce to cut straight lines in big pieces of ply, without extensions on the table
not so sure how much noise perspex would cut from a router anyways
a vacuum or blower is essential to keep dust away from the cutting tool.
yeah my tablesaw sucked until i made an extension table for it
now i can break down full sheets on it no problem
it's good exercise, sawing by hand
done clamping a beam onto it and breaking out a circular saw
that's what I keep telling myself as I'm rubbing life back into my hand
you saw better than i do
I was never very good at hand sawing
the trick is scraping both sides nice and deep before attacking the meat from the end
and even then you have to watch you're not veering away from the grooves
and then sandpaper hids your sins :)
yes it does
I made some bookcases and I sanded the heck out of them
I didn't verneer the plywood edges
just sanded them
I like how they look everyone that sees them seems to like them too
mine are still rough. tempted to put edges on them. halfround or 1/4" flat, not veneer
nah i just ripped it you know 90 degrees
I think it looks scandanavian or something
I like the look of plywood edge too, when nicely finished
you know like that modern furniture
oh yeah i used nice plywood no voids
and marine spar varnish on them
wen I say i sanded the heck out of them I mean I broke out the autobody sanders
wet sanded them too
I hand sanded my 7ft desktop for 3 coats of varnish. It was a Zen experience, in a karate kid way
MattyMatt ever paint a car?
that's a nice bit of birch-faced
MattyMatt I spent 2 months hand sanding one
I got to the point where i got sick of how that car looked
and its a pretty car too
I spent a while on mine, put on a coat of primer, then rubbed it down again, then decided it wasn't worth spending more on paint until it was roadworthy, and how the surface rust spots are back
one of these http://moezelaar.com/web%20images/p1800%20012.jpg
* MattyMatt finds url of 1991 Fiesta Flight
though mine is 1983 BMW salmon silver
has a hint of red in it
metallics are the hardest paints to apply
well the pearls are tough too
mine has flatter panels, fo sho
that's a curvy car
needs a fin
thats what everyone calls it
needs a sweede
bro had a dark blue Civic. I'm still disappointed he wouldn't let me put a shark fin on it
I'll make a rubber one, with aerials in it as an excuse, but it would look a bit daft on a clunky fiesta
I've done a fair bit with fiberglass but not had much luck working with rubber
which BTW I'm suprised i don't see more of with these homebrewed CNC machines
fiberglass that is
fiberglass is unpleasant stuff to breathe as dust
I'd cut wooden formers tho
or spars for the boat, and a fiberglass hull etc
no worse than lots of other dust
yes fiberglass can be strong
and if one is restricted with machining methods fiberglass is versatile
just seems to be an overlooked material with these homebrewed CNC projects to me is all
yeah it has its uses for making stroong plastic parts, but you're always under time pressure
lord knows I've seen people throw everything else at these projects
including at least the pipes from the kitchen sink!
thermoplastics can be reworked and recycled
something I've always wanted to get more into
so those advantages outweight the strength you get from glass reinforcment
I have some machinable HDPE and man is the stuff ever so fun to play with
I'd love to be able to say melt down old plastic containers and geet some of that out of the deal
glass-loaded ABS would be good if it can be extruded
where does that come from?
I have some seaboard
yeah the extruders all use filament on reels. I'd like a big syringe/crucible combo :)
which I think is just HDPE with pebbling on the surface
glass loaded ABS? ground up beer bottles and printer cases >:)
so you melt it?
I've done a little aluminum casting
not yet, but that's the plan
its easier than it sounds
lionel labs :)
since I've done it I'm convinced you could do it on a barbeque
read his entire site twice
aluminum has a pretty low melting point
well it isn't even as involved as he makes it out to be really
you can practically throw it in a paint can on a barbeque
yeah but bronze & iron would be nice
I've done it on a wood fire
alu first, of course, to get experience
much higher melting points
really aluminum melts what 400 over lead?
lead is like 800 aluminum is 1200
600C for alu iirc. around 900 for bronze, 1200+ for iron
it isn't a mind boggling temp really
well I don't think in C
C is 2 degrees a degree or something
I do for anything over 212F
close enough to 2 for me
because over an open fire its not like you adjusting the thermostat
i just read about 900 degrees conversion to a weber egg grill, 'the little black egg" http://www.youtube.com/watch?v=phcTzLKhACY
tell that to the refractory supplier
I lucked out and ran across two tossed out kilns
that seems to be the limiting factor in any furnace
for a few garbage pails of firebricks out of them
the lightweight 2300F variety
like $5 a brick
I've seen a mini furnace made from 6 bricks
oh I have I donno over 100 bricks
let me see if I can find a pic of my furnace
which is like nothing of the bricks i got
I could cnc tounge&groove in firebricks
see if you can access this: http://d.yimg.com/kq/groups/6926185/hr/805358075/name/Blast_F.jpg
not so sure how Yahoo does it
the design I saw used no mortar, the bricks were held by slotted angle frame
mine are held together by tie wire
cept the top I made out of versa-angle and screwed the bricks to it
pretty much gravity holds mine together
yep same as your lid, but the whole thing was like that, no screws in the bricks, long bolts
yeah i just used 2" drywalls
but I done two melts with that
used scrap wood I have in the yard
I have one of them flying saucer fire pits and I get a fire going in it
then shovel the coals into the furnace and add some more wood
waste oil seems like a win, but I haven't mooched the local mechanics and chipshops yet
well I have a lot of wood
acres of the stuff
danged trees always dropping dead
sucks to have to clean them up
so I burn them
make a huge hexapod with chainsaws in each hand
yeah that is me a couple times of the year when I get tired of looking at dead trees
chop them up and pile them up where i can't see them
teach the hexapod to make furniture
nah stuff is worthless all pine
have a pile of chairs lurking in the woods
I tried to make a bench out of some of it and its too flimsy
I thought you liked scandi furniture? :)
well this is horrible pine
or it wouldn't have keeled over dead I'd imagine
ants eat the bases of the trees
but some just get about 6" in diameter and drop dead
woodchips don't burn hot enough to melt iron, unless it's oak chips. that's what I've read
yes hardwood charcoal
the oak i have is nice
I don't burn that
we're sort of famous for our oak hear I've found out
I'll avoid that orony by getting waste oil :)
if you can get it
lots of places heat with waste oil
like car garages
I'll buy momma a deep-fat fryer if I can't
yeah and have all the fat chix hanging around
"momma, each more chips, I'm making a lathe"
when you burn that stuff it smells like french fries
I mean really smells
my neighbors probably would complain and they're pretty far off
the good chippys use fish oil
actually I like it in peanut oil myself
the best chippys use beef lard
I'm telling you peanut oil
makes a nice fry
kills weaklings too
they soak you $7 a cup for them here
if I have kids, I'm weaning them on PB and raising the survivors
yeah i have no allergies i know about
you can acquire peanut allegy, though a blood transfusion. I'll be damn careful not to bleed in future
want to see a lathe i made?
that would be on a par to getting hepatitis or aids. you can live for years with them but not without peanuts
yeah show me lathe. gingery?
[05:06:20] <pfred1> http://d.yimg.com/kq/groups/6926185/hr/1830392302/name/n_a
see if that works
Yahoo groups usually make you join to view content
I did what Gingery said was impossible
ah sweet yeah. the stocks look like the temporary ones in the gingery scheme
it was difficult but I wouldn't call it impossible
thing is solid too
I'd me tempted to cast a solid headstock at least
yeah one of these days I plan on making a new pulley for the headstock and a bigger spindle in it too bigger bearings
got the blank sitting on it now for the mold just never finished it
do it now, while you can still bore it
I'm surprised i don't have a picture of it
I do someplace
[05:11:14] <pfred1> http://d.yimg.com/kq/groups/12450162/sn/80996852/name/n_a.jpg
never got around ot makingthe chisels to make the grooves in it yet
its on my long todo list :)
but yeah I'm happy with how that lathe came out so far still room for improvements but it works
I'd be worried about using that with more than a pound or two of workpiece. not much metal keeping the spindle down
I made the bearings out of two pieces of half inch thick inch wide steel
the shaft would snap long before the bearings gave out
that was all a real PIA to get right
thats why there's two other shafts sitting there
they're messed up
mounting the chuck to the spindle was the only really nutzo part of the project
you have a lthe now. you can make a taper :)
but on the third try i got it!
I got a couple other lathes I made a taper on one once
is that a drill chuck?
when i redo the spindle I'll have to have a go at doing a taper
yeah a 3/4 inch one
good enough for woodwork :)
oh yes it turns wood
I made another lathe years ago for turning wood too this is like a redo of that
lloks like it'll finish alu pulleys OK too
the 3" C channel in the bed is from that lathe
I used it for sentimental reasons
the tool rest too come to think about it
and the tailstock
which I didn't make but found years ago in my grandfathers celler
but I had to do some machining on it too
how do you slacken the countershaft?
it is hinged
you just pick it up
it rests on this wooden stand i made
so if you really screw up and dig a chisel in it'll lift the motor
but it still delivers plenty of power to work
hey check out my prototyped motor drivers
[05:25:49] <pfred1> http://d.yimg.com/kq/groups/12450162/sn/542909338/name/Stepper_Drivers.jpg
I joined this channel earlier to ask people in here if they're good enough performance to use or not
and the answer you got was "try it and see"?
no was pretty much they should do the job
they do what motor drivers do
emc will help them in actual usage with ramping
something that was bugging me
yeah, I ordered an overspec driver board, but I can always use spares for other projects
see steppers can't start off very fast
but once they're gong you can get more speed out of them
but once they're going you can get more speed out of them
it was driving me nuts!
they won't start out much faster than say around 300 RPM or so
I suspect feeding them sine waves would help at high speed
I've had my driver up to 2500 RPM
but at that speed its worthless
breathe on it and it'll stall
that would be worse for a servo. they don't have any torque until they are fast
yeah steppers rule going slow
mine will break your fingers in torque band
hydraulics win at v low speed
there is no stopping it
threads can be nasty
broken fingers is why I prefer thinking in Nm to oz-in
some of the worst jacks I've ever used have been screw jacks
hydraulics are always messy too
least my porta power unit is I always have to add oil to it
hey want to see my tablesaw and fence i made for it?
[05:38:53] <pfred1> http://d.yimg.com/kq/groups/6926185/hr/1063502364/name/DoneT.jpg
is it cnced ?
MrSunshine but it has made stuff for my CNC
do you have a router lift?
MrSunshine one thing I'm finding out the more tools you have the more tools you need!
eric_unterhausen my router has a lift built into it sort of its a Hitachi M12V has this handle thing
I have an M12V, but maybe it's not the same model
I'm not sure if they all came with the handle
so you can raise it when it's upside down?
you have to remove the two jamb nuts on the threaded rod and replace them with a cup and a nut and a spring and the handle thing
yes you can raise and lower it when you put the handle thing on it
the handle thing has another nut in it and ah fingers to engage the other nut in the cup
but the spring keeps them from locking up
its a PIA to get all the parts so it works right I always forget how they go but once you have it set right it works well
I am NOT putting a computer in charge of my 14" saw until I have MUCH more experience
eric_unterhausen wicked router isn't it?
I like it
me too loads of power
thing takes 2 minutes to wind down
ugly as sin but hey
14" is an impressive tablesaw
I need a bigger table to use it for much tho
I want a 14" compound slide miter saw
for doing them funny angle cuts in 4x4s
but really hard to justify the expense
I want to try one of those japanese miter saws, but they're expensive
never heard of them
I have some japanese hand saws
they have convex edge, and variable pitch
like dozis I think they're called
that sound's like what you need for angle cuts. that and a good eye
I've made compound objects and there is some calculation involved
blender tells you your angle and bevel settings?
if you can draw it, you can take dimensions. dunno about angles tbh
yeah need to know the angles
the dimensions work temselves out
when it works its pretty freaky
like wow it all fits together!
oten you don't need the angles, just the position of 2 points the line goes through
when I make garden tutors I make a little pyramid on top of them out of 4 sides of wood
3 points to define a plane, yeah
nah i need angle and bevels to set the saw at
trigonometry is not hard
even as a 3d problem
turning it into a 2d problem is easiest tho
I donno I got it all out of a woodworking magazine article
had the formulas you used for the sides
I suspect most CAD can tell you the angles
when you plugged your numbers in I suppose it wasn't hard but coming to the equations is beyond me!
to do it again I'd have to dig up the magazine
topsolid looks great, but it can't beat blender's price
blender needs some feature creep in the CAM direction
Linux can use some CAD
pfred1, so true =)
MrSunshine its still a wicked environment though
one of my fave quotes is even if Windows worked right I still wouldn't like it
i was andwering on the the more tools etc thing ... dunno if you thought i answered on something else ÖP
MrSunshine oh yes the more tools you have the more you need you have to maintain the tools you have
I so envy people who own just a hammer and a slotted screwdriver
what is a wicked environment? :)
im to tired to read up :P
linux sucks, but windows sucks more :)
linux is so bloated its comming out of its ears
is this hardware tools or software? seems to me you get php and need mysql
I love how the buffer works in it
Windows is like OK its highlighted does that mean you want to copy it?
no I wanted to make it stand out for the guy behind me
ofcourse i want to copy it!
that's a minor tweak to the GUI. not an OS issue really
I used to turn it off in Linux, until I got used to it
MattyMatt theres lots of little things in Linux that I like like that though
C'n'P was a bit fragmented on Linux for a while. KDE & Gnome apps didn't share when I started
MattyMatt heh KDE and Gnome didn't exist when I started
I used FVWM
and I wish Alt-PrScn worked like it's supposed to (and does on Windows)
and I even like that better than Windows!
which is all Windows is doing
treating the root like a bitmap
I thought I'd fixed my pound key, but shift 3 = 3 again
I haven't done keybindings in a while
I think you do them in ~.bashrc though
for them to stick
I think my NV beta driver is overriding my config
backspace used to be a nightmare in Linux
you'd always have to bind it in every distro to work right
but I haven't seen that nosense in years now
most apps still don't use the keypad enter
I used to know a lot more about Linux
but it works so well I don't have to mess with anything and I forget
this system literally got hit by lightning and most everything fried in it I rebuilt it from junk parts and here it is
rebuilt a kernel different CPU and it is fine
this still isn't perfect, but it's close enough. I do still have a windows machine for VS tho. that's the best C debugger
try that stunt in Windows
I regularly moved hdd with win98 from one machine to another
MattyMatt UNIX was written as a shell for C
long before Windows was even a glint in Billys eyes
I like single stepping through the source
ddd does it
and apart from RHIDE, I've never seen that done well with gcc
you have to compile the code to do it
but then it'll do it
rhide on djgpp that is, even that never worked as well on linux, for me
MattyMatt well the rest of the world seems to manage with posix compliance
get an old japanese cnc machine, it'll run NDOS, which is what he wrote before MSDOS, before Windows. thats where the money began.
MattyMatt heck gdb will even debug in reverse
I never got on with vi or emacs. if Linux apps didn't comply more with M$ keystrokes these days I'd still be on XP
NDOS = Nippon DOS
MattyMatt so who says you have to use vi or emacs?
10 years ago, everyone did, apart from the brave sould who ported rhide
and the nutters who liked pico
MattyMatt and that matters now how?
MattyMatt there were other editors back then too I know I used them
it explains why I've only had a Linux workstation for 1 year now :)
instead of 10, when I first tried
every year or so, I'd install a random distro and say "not yet" but this time I didn't
my first Linux distro was Slackware 95
kernel .95 or something
nah I stuck with it
Linux is a bit like nice shoes a bit rough to break in but once you have them softened up some can't get rid of it
I hated & loved M$ equally I think. I loved them in basic rom days, but became disillusioned over the years
actually I think the first Windows I didn't mind was XP
it almost works
though it still sucks
least it doesn't crash 10X a day
it is still weak
it suited a workstation better, in its day. Linux is great now, and both Gnome & KDE are good enough for joe user
I don't like gnome though i do lke a lot of the apps
least i have a choice not to have a smelly foot on my desktop
I think I have a debian swirl
it's hard to tell. I have a messy desktop
I like Ubuntu better than Debian
though this system predates Ubuntu
so it isn't on it
when i load new systems i go with Ubuntu these days
I forget what annoyed me about Ubuntu. it was that sudo thing wher it asked for root pw but wanted my user one. That confused me
I could chuck an Ubuntu CD into a gorilla cage and get a successful install out of it
well I'll have Ubuntu soon enough when I get emc
it was a wise choice on their part
probably why M$ rolled Win7 out the door so quickly
because Linux is looking so good these days
really the thought of paying for software doesn't sit well with me
to pay for a pattern that sits on my property
I agree with paying for software in principle, because that's my "profession"
and heck even after you pay for it you still don't own the stuff!
you can always write your own, if you think it's a cost free process :)
you just have the privledge to use it
MattyMatt many hands make light work
yeah for common needs
and I suppose any need is common on a global scale
MattyMatt yup whenever i have a problem I know I'm not the only one
unless you're a total freak of nature
MattyMatt I google it and sure enough others have had it and have figured it out too
MattyMatt yeah commercial software is doomed with open source
MattyMatt it is just a question of time and we have all of it
programmers need paying somehow though
actually eventually computers will program themselves they're already working on it
at the moment it's funded backhanded through the university subsidies etc
or a lot of open software is done for commercial gain but the originator is forced by poverty to GPL it
the last jab in billys eye when they released their code
so, without a proper communist govt to give me a free apartment. I ain't doing GPL stuff
MattyMatt it got Linus a nice paying job
well communism got Stalin a nice job :)
archivist: are there any CSG examples for HeeksCAD?
I don't know much at all about programming but if i have a problem in Linux and I really want it fixed i can work on it and i have some chance of making things right
that's true in Windows too
MattyMatt what chance do I have in the closed source world?
use a disassembler
reverse engineering ftw
MattyMatt lots of stuff is made so that sort of thing doesn't wor
yeah they try
they have a family to feed
and all it seems they're interested in is maximizing profits
I can remember a couple times having an issue and emailing an open source developer and getting swift resplies and action too!
that's one way of describing the food in their kids bellies
who do I email at Microsoft?
they'd tell me to go take a flying leap
he's the coder. the other 12000 are salespeople
buy the next version and hope it works there
employ a consultant, like Linus
I'm convinced a lot of commercial software is purposly buggy just as an incentive to upgrade
the commercial pressure is to release early
this office isn't rent free
no that is open sources mantra
release early and release often
but I'm telling you my Linux experience has been at times simply astonishing
it's nice to have free support, but when another commercial firm, e.g. an engineering company, needs a solution quickly then you need paid consultants
I mean the stuff will run until the wheels fall off PCs
reboot every time the CPU fan burns out
which takes about 130 days or so
of 24/7 running
hot swap redundant fans
as far as support goes it doesn't get any better than Linux
most Linux users are more than happy to help
yeah most of M$'s success is its ubiquity. we need standards so we know what to support
most people run M$ because it comes preinstalled on systems
BeOS support engineers go hungry
they wouldn't choose it if they had to
they choose it because it runs the apps they want. games in particular
when I was younger I liked video games
but today I view games as masturbation with no pay off
I've used that same simile
put another way I can find better thngs to occupy my time with
have something to show for it when all is said and done
not at the retro conventions in front of my fans tho. I tell them games are great >:)
I suppose they build some coordination maybe some problem solving skills
writing them is an exercise in RT programming
but really if people invested the time they spent playing games in a worthwhile task
WoW is usually compared to heroin or crack
but so is IRC :)
but at least you can get something out of IRC
maybe a link to some information or something
something that maybe you'd have never found out about
in theory. and for a subject like engineering you can't work at night anyway, but chatting about coding is very rarely better than coding
MattyMatt you mean like firing up the 9" dangle grinder and having at it?
at 7.22am in momma's house? not half
yeah I remember for a time some game companies tried to get into Linux
but it didn't work
I don't think Linux users are gamers
too many support issues that need the army of volunteers
yeah an often complaint of Linux if all the different projects branches versions etc
the 90% on Win32 are the obvious group to support
like my system is too old to have any support now
maybe 85% now. OSX has 10% and Linux a few percent
I just need a whole new computer
this sucker is dead
that happens with windows too. XP is just nice and now they won't support it. I had to get SP2 from elsewhere for this thinkpad
dang they already dropped XP support?
yep, except on netbooks until next year
I think with debian one nice part about it is you can upgrae forever
but that horrible dep tool you have to use on install oh how i hate it!
I use Synaptic
no you have that so you can't have the other thing too!
you can use that on install?
the OS was netinstaller
last time I tried Debian there was no way around I forget its name
that horrid black and blue app
oh how i loathe it!
yeah that still happens, to get enough drivers for the netinstall
yeah its miserable sets Linux back 10 years
I used the same on Mandrake many years ago. didn't worry me
well it just looks bad is all I'm saying
I hope emc has the nice ubuntu installer
so you get to see it
because man the first time I saw it my jaw dropped
I was like this is drop dead gorgeous
Mandrake used to have a pretty installer, until it started to go wrong
then you back to blue & black
well Ubuntu is based on Debian so it is solid underneith
just like Win95, iirc :)
people forget how much grief getting a sound card working was
but some of the more political or religious nonsense isn't so attached to it
heck I paid for oss
back in the day
one thing I did pay for
I paid for lots of linux stuffs
bought a bunch of official redhats
ah what was that word processor?
didn't feel so bad paying for any of it either
that was the stuff
it was still cheaper than M$O
wasn't like I HAD to but I wanted to you know?
and it is a different feeling
but even so, it failed commercially, just because the Linux world has no cash for software
didn't feel like I was getting my arm twisted
well honestly the stuff did suck
it was pretty buggy
I think they even had to send me new discs
because there was something horribly wrong with the first set
I can't remember all the details now but I recall something along those lines
slow man it was godawful slow!
you could go have lunch while it opened up
that's where M$ scored. they could tune the whole vertical stack from Excel to video driver
open office is nice
suns dig at mickeysoft
I got it never use it but I got it
yep, it's a viable replacement. lotsa schools teach it instead now, and some govts insist on it
brazil & finland, iirc
yeah M$ will change file formats and you're stuck
I can't believe people stand for it
the penny is dropping, usually in govt archive depts
"but we digitised it already, 20 years ago"
"here's the floppies"
never before in history has so many media formats come and gone so quickly
CD is here for 100 years, at least the hole in the middle will stay the same
we can still read Gilgamesh but can't read a floppy from 20 years ago
and they call this progress
I got my system set up so I can rip MP3s from vinyl records :)
I hope to get an ST again. my OS is on 3.5" floppies but ST drives used the "other" bias setting so PC won't read them reliably, even after I've dealt with the 11 sector format
you can do freaky things with floppies in Linux
one distro craps like 1.7MB on a 1.44
dunno where to find the jumper to change the bias tho
does some bizarre sector stuff to the disks
oh what was the name of that distro?
yeah I did that on ST, so needed the 2MF driver in DOS to read them, but half the sectors appeared dead
the bias is like the chrome switch on a tape deck
720k drives mostly had a jumper, dunno if any 1.4M ones do
[07:41:24] <pfred1> http://www.toms.net/rb/
that is one awesome Linux distro!
what blew me away is when I fired up emacs in it
I mean it does so much
all on one floppy!
the guy just stuffs all that junk in there to be a wiseguy
and he guilt tripped me into doing a backup today, in 2 secs flat
I guess when your whole OS fits on a floppy how hard is it to backup?
screw the OS. I have my ASSETS
this machine was supposed to be my svn server, but I do all my work on it now
thankfully most of my code is safe on SVN elsewhere
but my gfx are mostly not
there's a vanity element to not sharing unfinished art, as well as a financial one
actually there's a motivational reason too
like what if you showed someone an unfinished work and they were like it sucks
how motivated would you be to keep working on it?
that's the vanity :) nobody likes being told they suck
ah but we take criticism of code, because that's more concrete
hey a lot of what I make sucks don't mean i suck just means it sucks
that's where art is different
art comes from passion etc. sucky art = sucky soul
I look at anything creative as "art"
I mean all most people make is dents in sofas
I create stuff to sell. useful or decorative, I don't care :)
I used to do crafts
but things changed in that business
I prefer useful, but decorative is easier to spec. if the customer likes it, it's good enough
911 really knocked it down
now i like to make things for myself
because I appreciate them
the credit crunch has hit the furniture trade
you make furniture?
I always wanted to make a chair
not sold any, but plan to. momma has an "antique" shop where she recycles auctioned stuff
never made a chair. plenty of tables tho
square stuff. I'm good with a saw :)
chairs they're the challenge they look so easy
one like this: http://turnanewleafinc.files.wordpress.com/2009/06/chair.jpg
that'd be a bitch to make!
I break a lot of chairs
cnc is for the curvy bits
or fashioned green
those bends aren't cut
both, if its oak
they'd fall apart
that is one stylin chair
if you were a name artist a chair like that'd go for bucks
bit skinny. that style comes in all weights
a good oak chair has a 1.5" thick seat or thereabouts
chairs like that often maple
not much maple here. closest is sycamore and that's usually used for food surfaces. it's naturally antibiotic
very white wood
maple is nice
english oak can be very twisted, so a good chairmaker gets the twists to follow the bends, on shaped stuff like arms and square legs
8n england they'd be a bodger :)
all english woodwork is based on shipbuilding really. beams and spars
that's how I think, mostly, myself. my cnc has a port & starboard
I'm a land lubber
so you select your straight bit of oak for the mast, and bodge all the curvy bits for the rest
I got oak like iron here
I chopped down this one tree and when I went to pick it up I was like wholly am I weak?
yes it is red
that seems to much straighter, or maybe that's just what gets imported
the stuff here is so heavy and hard
something about the climate I think
but commercial outfits don't even want to mess with the tuff
check out this link all the wya at the bottom
[08:05:56] <pfred1> http://www.handmadetools.co.uk/gallery.htm
This is where I lived for a year while doing my college course.
I want lumps for my router
MattyMatt lumps of what?
wood hard as iron, close grained
18" x 14" x 8" please :) air mail
used telegraph poles is what I'll get. mm creosote
no free trees here
I met a guy who makes duck decoys out of used pilings
I don't see a price tag on the ones in the park tho >:)
he has duplicator machines
I was thinking about rigging mine as a probing scanner
but phone poles are a step up from used pilings
how can you have no trees?
you live in a city?
most of the wooden railway sleepers are gone now
even more creosote on them
and weedkiller, for fun
yeah kinda in a city
long walk to find a green field
wow a new picture!
[08:13:57] <pfred1> http://maps.google.com/maps?hl=en&ie=UTF8&ll=38.689722,-75.275646&spn=0.000986,0.000878&t=h&z=20
my neck of the jungle
heck that is like this week
I bet they took that last Saturday
because thats when I was out at pumpkin chunkin
mine still shows my car on the road. that makes it 2yo at least :)
yeah thats when google updates every 2 years
forgive me if I don't show mine. urban paranoia
here we're all heavily armed ;)
it's a house, in a street
we all shoot in our yards
is the curved bit on the left a swimming pool?
if I shoot like towards the back no way i can hit anything
in the back the big black thing
that is how I knew it was a new pic its covered
did I tell you or what?
I got trees!
I got to buy a sheet of ply today. painful
hey my trees don't grow sheets of plywood OK?
I got to buy plywood when I want it too!
but yeah sometimes I'll chop down a tree if I need a post
that's what your john deer hexapod could do with your pines
I got a John Deere weed whacker ;)
[#emc] "This is the #emc channel - talk related to the Enhanced Machine Controller and general machining. Website: http://www.linuxcnc.org/,
wiki at http://wiki.linuxcnc.org/"
MarkusBec_away is now known as MarkusBec
MarkusBec is now known as MarkusBec_away
MarkusBec_away is now known as MarkusBec
whats the consensus on planatary traction drives for rotary tables without backlash?
Valen: you're asking if it works?
or accuracy or what
Valen: I can only tell that it works perfect
all of the above lol
we are thinking about making one
using ball bearings for the planets
ball bearing races rather
I imagine the outer ring "gear" is heated for assembly?
know of any other amatures that have made any?
so... Shirley came down with the flu yesterday.. So no trip to spain. She is so upset.
flu means no trip to spain?
dude thats what drugs are for ;->
heh - there is a good chance that amsterdam or spain would quarenteen her..
are they all narky about swine flu?
she is coughing up a lung
bunch of pansies
It went through here without a problem
* JT-Work waits for the question
* JT-Work has determined that the sheet metal is an integral part of the Hardinge and it has to be picked off the trailer with a fork lift...
it's still on the trailer!??
yes, I have been super busy with customers
didn't it take JWPadnos a while to get his off the trailer?
* cradek can rent a forklift any old day, 7 miles from home
I can too, only costs $250
if it's too heavy for the trailer, we just drive it
I can rent one to but I think I'll still use the backhoe to get it off the trailer
is that like using a bulldozer to get it off?
that last 12" down to the pavement is the hardest part of the trip
except with a backhoe you can dig a hole to put it in first
I wish the long boom forklifts had better flotation tires
yoyoek1: how do you handle units of measure in blender? for example, how would you make a 1cm cube or 10mm hole?
tomp: in blender are "units" :P generator generait default in in. not mm
tomp: 1 unit in blender is now 1 in. in real
yoyoek1: wow, i didnt know there were units of measure in blender at all. thx
tomp: on the begining off file you have lisen "#2=1.0 (scale)" you can rescale it if you whant
tomp: in blenter there is no unit it is a float "number"
ok, so #2=25.4 gets me metric ?
tomp: yyy you can replace G20 on line 1 to G21 and you will have metric
ok, np, you're talking about the nc output, and a unit-less generation, great, thx
tomp: generator is outputing numbers it is to you how to interprate them
ok let mill somting :P
in the video, you are very fast in making the shapes with blender, i am very slow :P
tomp: what exacly do you whant to make ?
yoyoek1: i'm stuck doing other things right now. but i want to learn, so an example like this would be handy http://imagebin.ca/view/xYoyAgkz.html
it'd be best for me to finish looking at HeeksCNC and Gcam before i begin learning Blender and MGcodeGenerator
btw, your new posts of the milled monkey face is impressive
tomp: you were around the other day for my saga, right?
i cleared up one very important thing: my leadscrews are imperial, not metric! things look much more sane now.
even though i tried that scaling and it didn't seem to look right at the time, i chalk it up to debugging craziness.
it's not perfect, but it's much closer to what it should be.. i think some fine tuning will improve it.
gweepprefect: congratulations! now the linear comp may tweak it in.
i need to see if i can borrow my friend's DRO kit that he never installed on his mill so i can do some calibration more easily
i did some very quick backlash calculations and enabled software backlash compensation and cut some circles in some material - they came out round to within a fair tolerance.
EbiDK is now known as EbiDK|AWAY
software backlash compensation? how does it work?
in principle? by adding extra steps when reversing
just enough to take up the slack
if it was really fancy, it could keep a value for each part of the axis, to cope with uneven wear
its also a pain in the A
is it a pain for developing the motion engine, or a pain in the neck for other reasons?
backlash breaks tools and causes inaccuracy
ah, yes, backlash in general is certainly a pain.
any lost motion effects accuracy
i may eventually go to dual ball nuts on my mill, but it comes at the expense of travel and a dent in my wallet
loose gibs can mean rotation of a table
while you've got a working mill, grind your own ballscrews
yikes.. that sounds like more of a project than i'd want to take on
trickiest bit would be dressing the grindwheel to the ball radius
i think i can come up with a few more things that'd be tricky, i'm very much a beginning machinist
then bolt the angle grinder to the cross slide on a lathe >:)
I'm barely a beginner, but I think big
no lathe just yet, but it's probably the next machine purchase
I'm planning to cast my lathe
or build it into the back wall of my mill, now I'm making it enclosed
a single chuck that can either spin fast for turning, or slow & accurate for B axis
probably belt change to switch modes
arrgh. I'd lose Y motion that way
moving table machine
I'd have to turn the table into a selfcontained lathe. not an unappealing idea if realistic
i've seen that done
if you didn't mind setting it up when you wanted to use it, you could attach it to the table with t-slot hardware, and take it off when you need the whole table
you'd just have to spend a while doing alignment setup each time you put it on the table.. not unlike a vise
I cut some convincing T slots freehand with a dremel. I might do them on my wooden table
or I'll just nail the work down :)
gotta remember why I chose wood for the first one
build the tslots up... just make a plate with grooves, then put plates on top. between the plates, the slots is exposed. because the plates extend past the groove, the slot becomes a 't'
a lightweight rotary table permanently at the back of the table would be OK
tomp yeah. I thought of that, and then I thought that's best waiting till the machine can do it to itself
mill the flats enough for steel plates on top
and then grind its own surface :)
if its a small machine, make workplates that go in & out. you can be setting one up while another is being cut.
the whole table lifts out. I could make alternates
12 bolts and the drive nut to loosen
no need for tslots. maybe some cross dowels to get xyz&rotation angle to repeat.
i'm trying to dream up a simple fixture for machining 19" rack faceplates on my mill that doesn't have quite enough X travel (just shy of 16")
mine is 14.5" but about 18" Y
that's an unusual setup
a rotating table on top and do it in two halves
it was originally 600x600mm using equal screws for X & Y
i thought about a rotating table, or making a very simple dovetail arrangement with locks and end stops
then I took off 200mm from Y, to make it stiffer with the shelf sliders, the I bought a ballscrew unit with 14.5" travel, so I lost lots of X, so added 100mm back to Y for no sound reason but it has worked
sounds like a bit of a frankenmachine, do you have any pictures?
ah yes. the sound reason was to make the beams exactly 1m, so they can be replaced easily with extrusion later
no pics yet. I'll take some tonight
I need more light in the room now I've put solid side on the machine
I'll screenshot blender, which shows the right frame dimensions but has old plan X & Z
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how do you connect multiple pins to iocontrol.0.emc-enable-in ?
net parport.0.pin-11.in => iocontrol.0.emc-enable-in
net hm2_5i20.0.gpio.024.in => iocontrol.0.emc-enable-in
like these two lines for instance...
i don't know anything about hal but i think some kind of logic is needed for that
I just want either of those two pins to trigger an e-stop
which will define what is done if one of then is on and the other is off
connect parport.* to or2.0.in0
look at the http://linuxcnc.org/docs/2.3/html/man/man9/or2.9.html
connect hm2* to or2.0.in1
wow - I am slow
and or2.0.out to iocontrol
skunkworks: and I'm only typing with my left hand
and that's is you don't have or2.0 used anywhere else :P
alex_joni: ;) I bet you do that a lot now..
if it is, use or2.1 or some which isn't used
skunkworks: feedinh time ;)
my goodness that was complicated
I think I got it, thanks guys
trial and error would never have worked for that!
I needed to read two pins for an e-stop input
had to or2 and not some stuff