you're the hobbing master now, although archivist's 29 tooth gear vid is good too
if it isn't on youtube, it didn't happen :)
I tried mailing lists once, but a horse trod on my card index file
My pastebuffer contains http://www.youtube.com/watch?v=U01xasUtlvw
from another conversation (a friend has lost a wheel from his wheelchair). Still funny after all these years.
argh routemaster bus :)
I've just had my brain full of that for a week
I just looked with more care, and almost no components of that bike would fit a modern bike. Strange as I suspect that the actual performance of the machines would be approximately identical.
[00:14:03] <MattyMatt> http://img24.imageshack.us/img24/7813/busrender4.png
bicycle repair man's bike? my only bike is a 40 yo BSA. I can't find a front brake caliper for a normal sized wheel
I could in holland, but it'd be metric probably
That was pretty much my point.
britain is weird about bikes. it's treated like a sport here
as a means of transport, you want normal road bike, not a mountain bike
with saddlebags an owt
I have a normal road bike, but it has no scope for luggage, or comfort for that matter.
Optic: those 'cartridge' lasers are not all that expensive... relatively of course ;) Plus, you can engrave super fine characters after you cut out the component openings!
beats using multiple tool changes.
MarkusBec is now known as MarkusBec_away
Optic: something like this would also work: http://www.lttcorp.com/ilaser.html
who here is ready for the next interface? http://www.popsci.com/technology/article/2010-04/japanese-titans-industry-aim-mind-controlled-robots-and-electronics-10-years
elmo: we have a 25W laser at hacklab toronto and it can barely touch alumium
it will etch it
but not much else
maybe the 100W one could cut?
I melt aluminum over a wood fire
* pfred1 is LoTek
I can create the cheapest element known to man in doing so too known as Beercanium!
random thinking,......but deep
calcite 22:28 < Optic> elmo: we have a 25W laser at hacklab toronto and it can barely touch alumium 22:29 < pfred1> I melt aluminum over a wood fire
realy I went through all kinds of trouble making a blast furnace and in the end there's really nothing to smelting aluminum you coudn't do on a barbeque grill
Aluminum oxide at the surface, has a melting temperature three times that of the aluminum substrate
thats why you mash the cans down into it
really even doing pure cans I didn't have a huge dross issue
stuff pours like quicksilver too its neat
Oh I was commenting on the laser app. suface effects
as much as a PIA it is to weld aluminum its nothing to cast the stuff
casting allu takes a propane heater and a hole kicked in the sand
I do it with pine logs i have tons of them on my property I got to burn them anyways
add a little zinc, and it's pretty strong....ZUMAC
I hear alloying it with copper is pretty cool too
zmax is a ray trace application, Zumac is an alu based casting alloy
Copper is 20XX seris alu
I guess we were both wrong its called Zamak
Zinc is 70XX series
pfred do you do any PIC programming?
no but microcontrollers is something I do want to get into eventually
everytime i think i have an app for it I end up using plain TTL to solve it though to date
I am looking at a little device that cost $70 US and runs a PIC 12F629 at 60Cents along with a few resistors and a cap or two
the markup on some electronics disgusts me
problem is a PIC programer cost $60 ;-)
It's knowledge that you pay for
I can't imagine a micro programmer is all that involved these days either really
I built a stand alone hand EEPROM programmer years ago
I did an introductory read this evening, seems doable
even in Linux ;-)
but making and programing a board to program a board just is not in my time horizon at the moment. Learning curve
I think once I'm done building my machine I'll have had enough electronics for a while for me anyways
I have everything designed now and I'm halfway done with my second motor driver
well I have my interface board done now too
but i think I'll be stoked to get back into woodworking for a while
hands and mind!
woodworking can be very challenging
Need any toools?
I have too much!
and it doesn't ever involve sifting through bins of parts looking for just the right one
I've been cutitng back on my tool aquisitions lately though today i did pick up a tapers knife at a garage sale for 50 cents a nice Goldblatt one too then she threw in a bent up clip lite for free
man i hate mudding walls
There is over 1000bf of red oak stacked in the shop cellar, 500bf of clear wide board pine in the loft. and another 1000bf of random pine etc in the new addition, just kind of in the way ;-)
I mostly use salvaged shipping pallets when i woodwork
ahh! under the rough surface, you see the beauty
I'm "lost in the woods"
well i toss it through my thickness planer then it it looks good i use it
"Beauty is only skin deep" ....."then I'ld skin'er"
you could say I'm in the woods too: http://img717.imageshack.us/img717/8292/p2200017.jpg
rough place to set up a tent ;-)
stuff I've made out of pallets: http://img101.imageshack.us/img101/8160/trunk008.jpg http://img519.imageshack.us/img519/9396/sb002.jpg http://img19.imageshack.us/img19/33/xrb004.jpg http://img197.imageshack.us/img197/8479/sb006.jpg
the established trees around out place are about 130 years old by my count after felling a few. Mostly sugar Maple
now this is a cool use for 5-axis ;) http://www.youtube.com/watch?v=8I3diD1lpho&feature=related
I have mostly these little pine trees that ants eat then they fall over
Those boxes will hold for years and years
yup someday they'll all be valuable antiques after I'm dead
the dream is to do some CNC engraving on a few of them while I'm alive now
Ahh 5 axis Thanks Elmo inspirational "hot wheels"
3 axis will suffice for my purposes
I'll take two and move stuff by hand to get depth ;-)
Have you seen the latches that make use of a pin on one panel, and an excentric grove on the underside of a round knob on the mating panel? Pretty easy to make
[05:07:01] <morfic> http://www.linuxcnc.org/docview/html//gcode.html
shows g-codes that http://wiki.linuxcnc.org/emcinfo.pl?Lathe_Advanced_Features
still shows as not implemented yet
Srpsi is now known as Srpski
Srpski is now known as Dannyboy
you guys have the equivalent of anzac day over there
don't know what anzac day is about
Anzac Day is a national day of remembrance in Australia and New Zealand, and is commemorated by both countries on 25 April every year to honour members of the Australian and New Zealand Army Corps (ANZAC) who fought at Gallipoli in Turkey during World War I.
we have veteran day and mormorial day
whats the difference between the two?
vet day o honor the dead and living and mor day to horor the dead
I think ours rolls them all into one
we like holidays :)
I do agree its a good plan
sooner or later we'll have 300 days holidays and 5 work days
sounds awesome, where do i sign up?
have to be born here
only for the elite :)
EbiDK__ is now known as EbiDK
MarkusBec_away is now known as MarkusBec
who knows when emc on ubuntu 10.04 will be released?
10.04 is coming in 4 days
ehh, there were some last minute issues with Xorg which were rumored might cause a delay
hows the ship
* frallzor feeling the urge to make a joes 2006 machine
hello, whats the state of dev?
I was considering making some sort of contribution?
mong: can you ask a more specific question?
we're always happy to review any contributions
well i wonder what the state of development tools are?
sorry, I still don't understand the question
I was considering making a virual machine environment that would allow all developers to have the same build environment
is there such a thing already available?
not really; EMC builds on a diverse set of platforms, and that is a feature
well it does not build in my current environment, and i have had a lot of hassle trying to get it to build
ah - yes there are a lot of dependencies.
and the emc ubuntu distribution does not come with the tools required to build emc as standard
that's true. for example there is no compiler. but, you can add all the dependencies with one command, thanks to apt.
would be nice if there was a simple CD image with emc and the tools required to build it installed as standard
and also i use old hardware, so would be nice if emc would run on it
we've considered adding build dependencies to our standard cd, but we decided that would probably not be a win for our users, since we would have to remove applications to make room.
the oldest hardware I have running EMC is PIII, and that works quite well. When you get much older than that, there's probably trouble of various kinds.
damn, i just lost connection
basically my idea has been considered already?
moing is now known as mong
EMC with axis runs on an 533MHz AMD K6-3 with 192MB of RAM. I wouldn't try on older than that.
do you mean the idea of doing development in a virtual machine?
neither with less ram
yes, i thought if a vm image was created with a minimum spec, then emc would be guaranteed to run on that spec machine
say create a vm with 128mb ram, 1gb disk, and 266mhz
well my thoughts are that the developers by definition already have a usable development environment. this makes me doubt the utility of giving them a virtual machine image of some kind - if they wanted to use a VM (and some probably do) they'd have it set up already. Or am I missing the point here?
also, I don't understand how you think using a VM lets you use EMC on lesser hardware
well if you create a standard development vm image, it lowers the bar for any potential developers....
i think that testing for the minimum requirements is not that important
as setting up a devel environment takes at least 30 minutes, probably alot longer
mong: if you want to make this image and post about it on the wiki, anyone who is interested could try it out...
and if everyone develops on the same enviroment it means there should be less problems committing patches
well i am considering it......
like I said before, I think developing on a diverse set of platforms is a feature
in particular, using diverse compiler versions is helpful because they issue warnings on different problems
but it can mean many extra dependencies and conflicts
I do development on four different platforms that I can think of
well im just a novice to emc, and only a cnc hobbiest
programming for linux is awesome because you can set up a very similar development environment on pretty much any version of any distro
but who whould want a vm for realtime
well i may have a look at archiving my vm and posting it on the wiki in a few weeks
I didn't find building EMC to be too difficult... anyone who'd like to commit code can do it
the reason for a vm is to make a minimum spec machine for development, and to simplify development environment creation for new developers
i doubt most people develop on the same machine as they use to run their cnc application
a vm is an overhead
so what, the vm is only for development
well to test properly you need the connected hardware
and vmware virtualissation only adds 3% to processing even at the worst case
vmware allows direct hardware access
vmware is proprietary software, which is a problem for some of us who prefer not to use any
anyways, i can see it has been considered, and i am sure there are other reasons not to do it....
so i will continue with what i am doing, but may post an image to the wiki if i find it works for me
3% overhead sounds like a bad joke
OK, sounds good. You will probably need to host it somewhere else, and post a link to it on the wiki. The wiki is not a good place to post large things.
3% sounds like a vm salesmans snake oil
well it may never happen, but i will see how things go and maybe post a link on the wiki
thanks for the comments
i am away now
I hope that 3% is snake oil, or I have just wasted a lot of time creating a full windows boot partition on my Mac for running Alibre in.
[16:51:38] <skunkworks> http://electronicsam.com/images/KandT/conversion/almost.JPG
cool! has it moved yet??
skunkworks: looking good
not moving. (see the drives not hooked up)
cradek: when your collet closer is open does it dump a lot of air until you close it?
I think that's the design :-/
Flushed with success from my Resolver converter, I find myself strangely motivated to make your Accupin thing work.
ok, I thought so too...
andypugh: nice work on that.. You know your shit :)
I finally got the air leak on the turret lock fixed and changed the oil in there
Not really, it was very nearly all totally new to me (including programming in C) when I started. I just like learning new stuff.
I bet nobody ever regrets learning C
I have a bunch of photos of the turret in various stages of assembly I'll post later on the forum
It's interesting, it takes you very close to the hardware.
You can see the data going onto and off of the stack
yes but not in too terribly awkward a way. it's great for embedded type stuff.
Aye, it suits the Arduino really well.
I program AVRs in C. so nice.
The bit-bashing stuff is a huge help.
andypugh: how much would it cost to send a scale and head to you? :)
I did fall into the newbie mistake of assuming that int myArray creates you a 6-element array with indices from 0 to 5 though....
andypugh: yep, just you and a zillion other newbie C programmers have made that mistake
some might even have assumed 1-5 as the valid indexes
is it 0 to 4?
those are the indexes of "five things"
The last project I did in C was the tape interface for the K&T
that I remember.
I was aware that C arrays were indexed zero-based, but not that they were counted 1-based ;-)
"give me five things" -> you get five things
any other way would be insanity :-)
I normally use VB, you declare an array by the indices you want to use.
that sounds like another sane way
can you do an array[100..110]?
In fact Dim MyArray(-127 to 127) is perfectly valid (and occasionally useful)
yeah that sounds neat
use python if youo want pore flexebility
Dim Array(-1 to 0 step 0.01)
I think C gives you the most flexibility, it won't prevent you from doing anything, no matter how foolish. In my case that was writing past the end of my array into the next variable, which was incredibly confusing.
I don't _think_ you are allowed non-integer indexes in VB. Let me check.
Doing development on a "standard" VM would be a big mistake IMO... Linux and RT is definitely affected by the hardware platform ... and if anything should be tested on a real hardware platform it would be a realtime, I/O intensive application! Like EMC2! :-)
True, though I do test my HAL configs on a VM because it is a lot nicer to doit indoors sat in a char than in the workshop stood on a concrete floor using a balky stainless steel keyboard with swarf between the keys.
I think you need another computer...... ;-)
I am considering getting a small format PC, I pretty definitely will do if I start building another CNC machine.
(And I just checked, you can't use non-integer indexes in VB arrays)
upgrade to php then :)
I finally got my php mysql recipe database working archivist
good, I am just working on a customer php/mysql site
I love small form factor PCs as they store and transport a lot easier than the old full size boxes...
andypugh: read your wiki - agian - nice work.
Is EMC2 fully supported on the Atom boards? Or does it take tinkering?
the intel 330 boards will work perfectly.. (your latency will be just under 20k. - but others have gotten a lot better using smp)
I think eric has a smp kernel already built that he uses for his atom setups. (I have not tried it though as 20k is fine for most things)
Oh, and I just remembered to check what US to UK shipping costs, it's about $20 for a 7i43. I am not sure how much for heavier stuff.
I have an smp kernel on my working CNC machine, and it did indeed reduce latency significantly. Not that it helps a lot when I am not running a base thread any more.
that isn't bad.
cost me an arm six legs and a torso to get some manuals shipped
I would have used the atom in the K&T but I needed 2 5i20's
So I used one of the goal3 motherboards.
I guess you could use a 5i20 and a 7i43 if you have one EPP and one PCI port.
I just cant get hal signals and pins to work with pyvcp - would someone give me some help?
Do you have a postgui hal file set up?
[18:05:04] <JT-Dev> http://www.linuxcnc.org/component/option,com_kunena/Itemid,20/func,view/catid,29/id,342/lang,english/
not sure what a postgui hal is....See: http://pastebin.com/2ecdsLee
[18:05:41] <owhite> http://pastebin.com/aW5MZY2M
I have a two signals - laser_button and chbutton. For either of these, if the user presses the button or toggles the chbutton, I want it to turn on the pin motion.digital-out-02
if it is a pyvcp button your net command must be in the postgui.hal file
I think the problem is that your pyvcp pins don't exist until the gui comes up, which is after the main hal file has run. You need to connect them together in the postgui hal file.
yeah the postgui.hal is http://pastebin.com/aW5MZY2M
that is your xml file
That looks like rather a big postgui file.
I am not entirely sure you can add functions to threads at that point (though I see no reason why not)
the relevant code starts at 305.
everything works fine. I just cant get the chbutton8 and laser_button to drive the same pin.
# note: net only works if you create the newsigs.
I don't think that is true, which might point to a problem.
The HAL files all load without problems?
hmm - that doesn't seem right.. motion.digital-out-02 seems like an output...
wait, I got it wrong. I want chbutton8 and laser_button to drive m5i20.0.out-15
not motion.digital. Sorry.
andypugh - the code as it is does load without problems. Mostly because I've commented out my recent attempts.
I m convinced that you don't need the newsigs and linksp statements. That's old-school
please suggest what is 'latest-school' and I'll update the code.
net name pin1 pin2 pin3
net name pin4
It should just be: net cb8 pyvcp.chbutton8 => or2.3.in0
the "=>" is only for the readers convenience
can you explain what you mean by wanting two signals to drive the same output?
cradek a screen shot of my interface is here: http://laseroflove.files.wordpress.com/2010/03/ugjxd.png
net lb pyvcp.laser_state1 => or2.3.in1
I have a button on that interface labeled laser down by the left of the dial.
I want it so a user can press that button (momentary contact) or hit a checkbox, and just leave it on.
and then net either_button or2.3.out mi520.0.out-15
nice found a nice dxf with all the files for joes 2006, time to make kits! :P
Three lines to link the pyvcp pins to the or2 inputs (creating signal names along the way) and linking the output of the or2 to the digital pin
frallzor: like this? http://benchmark.20m.com/tools/LegacyMill/LegacyFuture/Joes_Model2006_R2.jpg
alright let me look at the current suggestions and see if I can figure it out.
material for like $100
exkl screws and such, just wood
Painted so you can't tell it is MDF those Joes2006 kits look really solid
yeah I was thinking about making his 4x4 hybrid but I made a mechmate instead
owhite: Note that if you want an output to go to more than one input, just put all the "recieving" inputs on the same net line
but now I can make them myself without a struggle =P
andypugh ok. will try.
wonder If one could charge $200 for a kit ($100 worth of material and $100 profit) :P
I know it is an open-source kit, but undercutting the chap who designed it (and who sells kits) seems a little mean.
well I dont think he sells overseas =)
no different than mechmate, plans and then you find someone to cut parts =)
but im probably like 5-6x cheaper than any cheap shop
$550.00 plus $75.00 shipping and handling in the US Only
I wonder if my dad would like to build one? He has a lot of linenfold oak panelling to carve :-)
I have friend whose moms dad wants a small cnc for guitarmaking
a small kit like this would be awesome for him
I wouldnt mind a second machine either :P
measurements are a bit odd though
made in imperial, perfect fit for a standard mdf-board here, but thickness isnt =)
What is the standard MDF board size where you are? I think ours is 2440x1220mm. Nice round numbers (not). I wonder why?
same for us
but the thickness of the plans is like 13mm
12,16mm is the closest I can find
I would have thought that the plans would be 12.7mm
yeah but I rounded it up
or is it 0.5' ?
0.5' would be very sturdy indeed, but would reduce the work volume :-)
0.5" then :P
HDPE is hard to find though
wonder if one could do the machine in mostly mdf
oh found a company what seems to have the stuff, and their offices are in the "county" where I live.... good bet the warehouse is here too then =)
I can find HDPE quite easily, it is finding it cheap that is difficult.
[18:58:09] <andypugh> http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0680555
I can find rods and such easily too
but not sheets
[18:59:02] <andypugh> http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0680583
[19:03:29] <elmo401> http://kickyoutube.com/#UI3nUjWTO5Q
Optic: From Toronto? have you been to the Linuxcaffe?
or joined #linuxcaffe ?
mailed my best bet now =)
elmo: i've been there a few times :)
hello people. I cleaned up a lot of my .hal file, which is posted here: http://pastebin.com/5xXfzTq1
I was wondering if anyone could tell me if lines 47-56 are actually needed, or some vestigal code I could delete. It has lines like "addf m5i20.0.digital-in-read servo-thread 1" in there.
you could comment them out to see if they are needed
well of course but I guess I was looking for guidance around what those lines do.
I wouldn't have thought they were necessary. You need a function to update the 5i20 somewhere in the HAL, but those seem unusually specific.
hi all , i have to modify old fadal machine with the emc . any experiance with that?
I'd have to go out to the shop in a bit and look at my 5i20 config to see if I'm using them like that
you should only need the hm2<>.read and .write functions
[19:30:29] <andypugh> http://linuxcnc.org/docs/2.4/html/man/man9/hostmot2.9.html
I would expect those functions to be in the main HAL file too, rather than the postgui.
isssy: There is a fair bit of experience with generic retrofits here. Is there anything obviously peculiar about the Fadal?
the only thing you need in the postgui.hal file are things that connect with pyvcp pins
no idea thats why i am asking , if somebody has made it already
no mention of Fadal anywhere in the Wiki, and a search at LinuxCNC only turns up mentions on this forum.
isssy: is the Fadal a servo driven machine with encoder feed back with velocity drives?
it is used old servos , analog type
dc brush motors
the control is cn88 , old 8080 based controler
does anyone know if the USB flavored 7i43's from mesa play nice with EMC?
command line text based control
if your drives take +-10volt velocity inputs and you have normal encoders those are fairly straight forward to convert
mikegg: yeah you have to use the parallel connector, can't use the usb.
ok, thanks. I thought that might be the case
JT-Dev: when doing a tool change, air is a feature. it helps keep the contact areas clean for the next engagement of the next tool. we have one machine that does not have air and every now and then a chip will fall causing a runout. rather annoying.
the fadal is based on resolvers , unfortunately
There are a number of ways to interface Resolvers with EMC2
Do you have a budget?
www.sivarbg.com ... reference of what i am doing
[20:07:08] <andypugh> http://pico-systems.com/resolver.html
not for this machine
man, everyone misreads that. I wonder why.
He ought to change it
uh to what?? it means what it says...
To what people expect it to say.
well actually it is probably talking about electrical revolutions
which can be 1, 2, or many per physical revolution
the description of the converter says that operate up to 1000 RPM
isssy: no, it doesn't
ops .... 1000rps , not rpm...
Alternatively, Mesa do a 6-channel servo controller daughter board for the 5i20 which takes resolver inputs. It isn't technically EMC compatible yet, but it is likely to be so eventually.
cradek: I read about multiple electrical turns per physical rev resolvers, and I really don't see why you would so that.
well some do... I have one that has 64? electrical revolutions per real rev
i'd guess there are probably a few electrical revolutions per physical rev
but not very many
apparently it's a 'variable reluctance' resolver
In fact I am going to admit that I have spent all day staring at the Hostmot2 driver code figuring out how to add the Three Phase PWM function in Hostmot2 to the EMC2 driver.
jon's board was not strong enough to drive it
Support for the ThreePhasePWM is all that prevents the 7i49 working with EMC2 (As I understand it)
isssy: And then there is the "Quite ludicrously cheap and kludgy" approach at http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?ResolverToQuadratureConverter
anyone know of a nice way to create 3d-texture to machine?
well then I have to learn how to make textures too =)
150 usd per motor , not a bad way
[20:15:49] <frallzor> http://i.ytimg.com/vi/iTlRXNFma30/0.jpg
this ps pretty much what I want to do
in different sizes and depths
alternatevel , i can replace the resplvers with encoders
75USD per motor
Yes, if that is easy then it might solve some problems.
You said that the motors are brush motors?
There is one advantage that resolvers have over encoders, they are absolute devices. This means that the drive knows where the motor is at power-on. With an encoder the drive doesn't know the motor position until it sees an index. This can be a bit of a problem with brushless motors. (though there are ways round it)
frallzor, that looks like wood gouges marks, (like inside old boats), are you planning on using ball endmills to cut the texture?
the machine is designed to work like with absolute encoders , but there is a command cs , ex. cold start tht reset the amplifyers and during the reset the motors jump. and as you can imagine they are showing new coordinates , sligtly different
, i prefer to pass tru the zero position , no problems....
wondered if you could drag a gouge along the raster just varying Z that little bit (no cutter frizz )
(assumed it was wood, and the gouge would cut cleaner than a rotating tool, as the rotation is always with AND against wood grain)
imagine doing that on huge sheets?
yah, thats what i imagined
it'll be a very nice effect
haha also adz marks
just need to make it happen
issy: Do the amps rely on the resolvers for velocity feedback?
only know of one software that makes it happen but it costs an arm and a foot
frallzor: You could write the G-Code for that in Excel.
excel can generate random patterns?
(Or any general purpose programming language with a "random" function)
hehe the gcode will be like morse code
[20:40:04] <aystarik> http://www.1999.co.jp/eng/image/10115399b/30/1
EMC can do Y-Z arcs. You just need to string together a random sequence of them.
havent gotten a clue on how to make that anyway =)
aystarik, rats its plastic :(
cast it :)
hmm.. seen some really nice mills this week
huge travel and loads
I don't know whether to be sad or relieved, I failed to win that Rambaudi mill
they were milling parts for oil lines (meant to work at 14500 psi)
alex_joni: and tolerances? :)
one valve was milled out of a 2 ft x 2ft x 4ft metal block
awallin: probably more 0'es after the dot than I can count
the biggest ones were toyoda
couldn't see much inside though :/
outside was 10x20x3m or so
saw some tools - maybe 1.2m long
[20:46:23] <alex_joni> http://www.toyodausa.com/lbseries.shtml
awallin: the valves are metal/metal contacts, so I suspect the tolerance is pretty tight
especially at 1000 bar/14500psi
awallin: instead of a hexapod, better build a delta robot for placing parts on the pikkanto
You set me off on a web search there alex_joni . I am impressed by this:
[20:59:25] <andypugh> http://www.youtube.com/watch?v=Gv5B63HeF1E
who first had the idea that when you move a window you want to maximize it? I'd like to smack that person
[21:09:36] <alex_joni> http://www.youtube.com/watch?v=v5eR0eHknZk&feature=related
Eric_K are you grabbing the dragbar but getting mouse bounce? ( gnome thinks dbl clik drag bar = max )
could be, but I get the little fist icon
give it the little finger icon back
cursing hasn't worked
got 3K for a toy 7dof arm ? http://robai.com/content/brochures/CytonI.pdf
is the emc workshop running now?
no - cnc workshop is in june
"High quality PMDC servo motors with integral gear reduction" == RC model servos.
andypugh, these bldc motors for larger electric airplanes looked interesting http://www.recumbents.com/wisil/shumaker/default.htm
[21:22:01] <tom3p> http://www.modelmotors.cz/?page=2
Aye, I have looked at them myself and thought "servo"
gotta go, l8r
Hello. I have a question concerning the lathe mode of emc
is there someone who can help me ?
go ahead and jump right to the real question
ok. sorry. if i start emc in lathe mode and load the chess pawn sample, it looks like the chuck is on the rigth side, but on my actual machine it is on the left.
I think you are misinterpreting what you are seeing then. the thing you see is actually the path the tool takes. the chuck and workpiece are not represented in the preview plot.
is it possible to rotate the display of emc. maybe this question is stupid, but i search 3 hours with google withou finding a solution.
not in lathe mode
if you go ahead and run the sample program, you'll see the tool following that path, and you can imagine the leftover material on the left.
if i wath the sample video, it looks like the image on emc and the real part are mirrored
I'm not sure what you mean by sample video
do you understand my answer?
i mean thi video http://www.youtube.com/watch?v=MX4SWe8WFA4
the meachine looks like the machine on the linuxcnc webpage. http://www.linuxcnc.org/content/view/28/13/lang,english/
ok again, the preview plot on the screen is the path the tool takes. so in general it represents the part that's cut away. you are just looking at it wrong.
lathe chucks are on the left, and that's what AXIS shows you. notice how the Z axis points to the right.
it looks like i do not understand it. sorry.
cradek: did you see the turret photos I put on the forum?
run the sample program in sim/lathe and you'll see it.
JT-Hardinge: yes, cool!
very interesting to figure out
the valve under the front cover was leaking as one of the o-rings was not placed correctly so it leaked air into the compartment
i have run the sample. and it looks like the picture on the linuxcnc.org webpage.
does your turret look like that?
I've never had it apart at all...
I mean the outside
my guess it is the same on the inside then
Guest494: I can see what you are seeing, but the "shaded" part is the tool path, the bits that have been removed,
interesting when you extend the lock it puts pressure on a shock cylinder to absorb the shock of stopping the turret
so if it clangs when it stops your timing might be a little late
I think mine sounds fine - it is smooth and gentle sounding - but it seems like it rotates a little slow compared to others
yes. arrgh. i understand. now. the tip of the chess pawn is thinner, so more material has been removed.
first thing I'd try is to remove the tool place and put some o-ring lube on the skirt seal
that's easy to do
JT-Hardinge: your pics will help, thanks for putting them up.
thank you very much.
if some explains it, it is easy to understand.
cradek: do you have a parts book?
JT-Hardinge: not sure... I have some stuff somewhere, but I don't know what it is exactly
if you want I can copy the couple of pages on the slide/turret and mail them to you or scan them and email...
if you rebuild the turret all the quad rings and o rings you can get from mcmaster carr but the skirt seal has to come from Hardinge
I'll yell if I get stuck (when I get to it!) I've been working too much lately and haven't had any fun shop time.
just got back from there in fact. :-/
I know the feeling and with spring here planting the garden and cleaning up etc
I think I can count the number tasks left on the hardinge on one hand and that is a good feeling
yea, as soon as my lube tank arrives I can start making some needed parts :)
did you see what I made on mine friday? http://timeguy.com
a sleeping cat LOL
heh, no, he's made of meat
the banjo tuner?
pretty simple :-)
how did you knurl it?
plain old knurler
2 roller kind
the chnc has a zillion little plastic sealing washers that look like top hats I'm going to try and make a hand full of them
I need to find some ground inserts first so they will cut the uhmw
time to wander in the house....
cradek: I see you have a pulley-centre calculator? I tend to use this one here, which is aware of the various available belt lengths and types. : http://www.hpcgears.com/calc.htm
andypugh: I derived that because I wanted to make a pulley set with different gearings but the same center-to-center
andypugh: lots of calculators for the simple case (but I've also noticed that at least some of them are wrong)
I saw one that I think was assuming half engagement on both pulleys
The HPC one has worked for me, so I guess it is right. As I said, the main advantage is that it knows what lengths the belts are available in (and they do seem rather random)
yeah that sounds nice
[22:50:46] <frallzor> http://www.collegehumor.com/video:1933163
dogs are cool :P
this is what I want to make, though with the column tilting to have 5-axis http://fraiseuses.charlyrobot.com/1-Charly4U/Charly4U_4axes_Rapid_Prototyping_Rasoir.wmv
cradek: can you turn threads on that lathe?
elmo401: They should have turned off auto-focus...
Right, goodnight all.