not to ask a loaded question in here, but comparison wise from emc to mach3,
is it worth it to have mach3 on the machine at all?
I can't imagine why you'd want both, seeing as how they even run on different OSes
maybe you can elaborate on your question?
well dual boot,
i guess im wondering for any corss compatability..
i like emc form what ive played with it..
but i keep running into mach3 users who dont even know what linux is
well, that seems pretty irrelevant to me
i guess im just second guessing my software choices :P
maybe you should try both?
obviously people here will tell you emc is better
I've never used mach3 and I do not have or use windows...
ill be quiet..
lol hit a nerve
id rather use an opensource product,
am i missing anything by using emc is i guess what im wondering
i doubt it
for some kinds of machines, like high powered velocity mode servo machines, emc is very clearly better (IMO). mach3 may have some nice features for hobbyists that emc doesn't, I'm not sure
i think if anything, mach might be easier to configure for basic stuff
if you try both, report back and let us know :-)
i was scared away from mach because i heard it wasnt as stable
but that might just be rumours
havent come across any limitations with emc yet
just a little difficult for the n00bs IMO
i have only used emc in a 2d enviroment for a laser engraver
what'd you use for a laser?
i'd love to make a laser engraver
was a uls system that had a dead controller, so it was rebuilt and hooked up to emc
and im working on setting up a small cnc table i got.
emc will do anything from tiny mills and lathes to 6-axis robot arms and tetropods and such
and big mills and lathes :)
got the t slot table installed,
i forget why now..
oh yeah, wondering about which end for home switches
just installed the emc ubuntu distro.. pretty easy
well limit switches at both ends,,
oh home, not limit....... um.....
XY 0,0 is the lower (closeest to you) left corner
well i was planning on doing only a combo home/limit switch at one end
you can home to either end, doesn't matter
(Z should home upward for obvious reasons)
frysteev: you got EMC running with a laser?
not me personally. but i was involved with it
what kind of laser was it?
andrew's blog post http://www.andrewkilpatrick.org/blog/?page_id=914
its the same one Optic, in here has chatted about
24,0 -- 24,24
0,0 __ 0,24
wait, I fscked up
if i do limit switches at both ends can i also use those to home?
0,24 --- 24,24
0,0 -X- 24,0
* cradek claps
frysteev: if I read it right, you still have the Audrino doing the PWM in the "finish" setup?
i would prefer to have limit switches on both ends...
ds3: i believe so
i have made a tun of stuff on the laser, but i wasnt involved in that part much
guess not many people are using EMC to do the PWM
i think they did it on the arduino as more of a failsafe if emc messed up
we were all noobs to cnc and emc and playing it safe
that laser is also installed in a bathroom
I noticed that
frysteev: how did you generate the Gcode for it?
since most of the stuff is 2d
i use inkscape to draw it. then there is some gcode converters
so most of your stuff on there is art?
but its all 2d.
inkscape has a cool plugin for making gears
then how do you hand the kerf adjustment?
if you draw a 1"x1" box and send it, doesn't it cut right on the 1" mark? so the resultant peice will be 1"-(2*width of kerf), right?
for actual parts, don't you have to adjust for it?
basically the stuff that is made on there is made with that in mind
and the beam of the laser is much smaller then a tool head
gotcha, you drew it a bit bigger to account for it, right?
but most of the time i dont worry about it
what do you guys use for cad programs?
I had a laser cutting shop do that and the parts came back undersize...drove me crazy :(
i need to figure out the cad to emc workflow
me too... but I need to figure out the emc to machine side first
frysteev: One thought (if you will stomach windows) is sheetcam -> emc
sheetcam can accept DXF's and most modelers will generate DXFs
so the overall path is something like ... Alibre -> SheetCAM -> EMC
is sheetcam good?
it looks like exactly what I've been looking for :)
ya it looks cool
maybe i'll try sheetcam on the laser this weekend
watching the youtube vids
Optic: lemmie know if you want company at the lab for figuring it out
sure, not sure of my plan but i'll let you know for sure
sheetcam is the cheapest of the cams that seems to have reasonable feature set
i've been using the python dxf2gcode
and it's not so awesome :)
and that generates output on centerlines
I want automatic "cutter comp"
have either of you tried cutting acrylic on that laser?
how thick have you been able to cut at 25W?
over that and its not pretty
at about 1ips
are you using compressed air to blow away the fumes from the lenses?
there's a laminar flow over the table
that's nice... sounds advantagous to start with a US chassis
it's a nice unit
the import lasers claim a higher power but lack the nicer features
i saw a cheap chinese one, the build quality was terrible
optics that were hot-glued in place, terrible ventilation, etc
the smaller ones don't have an airflow setup
it had a PC-style muffin fan
it also didn't have an adjustable-height table, I don't know how they expected you to focus it
that's better then what I have seen
our table has a height drive
those things are fix focus
material isn't fixed thickness though :)
have you looked at how the epilogue units work? are they similar to your USL setup?
im trying to figure out the pin config in emc..
my stepper board has pins labeled for enable x,y and z but i cant figure out the corisponding emc function
thought you guys built one from FET's?
this is for my personal one
frysteev: you got another laser skeleton?
no this is for my cnc router
[02:29:56] <frysteev> http://www.flickr.com/photos/34832969@N03/4330863953/in/photostream/
[02:30:19] <frysteev> http://www.cncgeeker.com/index.php?main_page=product_info&cPath=1&products_id=41&zenid=d759ff7a951131ffebb233ec7a06be6f
i have that coming
but cant figure out the 'enable' pins
oh so what's on that picture is acme?
I have all the hardware in place now for the tool turret on my lathe. Can it be implemented as a kind of invisable rotary axis?
Or would there be some other facility, like the way the spindle is handled?
does John Thornton come here?
Don't know. new myself.
jt-plasma: are you John Thornton ?? :)
no, Terry Mackintosh
terrylm: I don't have a lathe...
what do you have?
A friend of mine has one, 4x8, makes speaker enclosers with it
mine is he same size... Planning to build electrostatics again
What is electrostatics?
Ahhh jthornton is in teh room :)
will page him tomorrow
Is you router working now?
terrylm: yes it is
Good. I'm just getting my lathe working, purchased it dead. At the point now that every thing works, except the tool turret is not setup in emc, it works though.
E-stop question: Hitting F1 seems to set something somewhere that does not otherwise get set if the graphical estop button is used. Any idea what it is?
E-stop question: Hitting F1 seems to set something somewhere that does not otherwise get set if the graphical estop button is used. Any idea what it is?
Never mind that last question, it is not doing it now. I must have been confused... again.
How would one get a float converted into a signed 32 int for input into classicladder?
I see the dev version new has a float type in classicladder. Any way to do it in the release version?
phew.. finally got my mill back to normal after loosing all my config files
tell me about it
lost my toolchanger ladder and everything
i'm going to back it up a little more often now lol
and on a different drive
Guys, a spindle + motor... should the shield of the cable be grounded at both ends or only at the spindle side?
one of the other typically
cradek (or anyone who uses touchy): do you edit programs on your machine alot, and if so, how easy is it compared to a keyboard?
touchy doesn't let you write gcode. it assumes you put your gcode programs in the control by using the network
but, it very effectively lets you run typical mdi commands
i do alot of on-the-machine editing
probably should stick with a keyboard
I walk 8' to the normal computer with keyboard to write programs
also, there's a stool there
and a calculator and notepad and pencil
haha i'm about 6 feet away... with a stool
there you go
in fact i'm on that stool now
these computers dont see eachother on the network
this is a windows box and i havent gotten that far yet
i usually use a flash drive
sounds easy enough to fix...
enclosure swap is done, and pretty much fully recovered after loosing a HDD
looks MUCH better
and f2 turns on and off all power now, like the lathe
just need to swap the vari drive for some cogged belts and get an encoder on there and it's "complete"
[05:48:37] <danimal_garage> http://img.photobucket.com/albums/v20/danielwilcox/shizuoka/DSCN0778.jpg
[05:49:27] <danimal_garage> http://img.photobucket.com/albums/v20/danielwilcox/shizuoka/DSCN0779.jpg
ribbon cables could be a bit neater
and there could be a few less chips on the machine/floor lol
pics of your machine?
hold on i'll find one
[05:58:38] <danimal_garage> http://smg.photobucket.com/albums/v20/danielwilcox/?action=view¤t=DSCN0546.jpg
there's some sheetmetal around the table for coolant containment now
i wanna make a new control pannel for it eventually
same with the lathe
[06:05:12] <frysteev> http://www.flickr.com/photos/34832969@N03/4330865247/in/photostream/
thats my new toy
and i have a 7x12 lathe im planning to cnc next
nice, i'd love to grab one of those mills for engraving
cnc lathes are fun
the mini lathe sucks working manually
the dials are too small for my hands
[06:07:34] <danimal_garage> http://smg.photobucket.com/albums/v20/danielwilcox/hardinge/
there's my lathe
yea, i could imagine, my 14x42 gets tight too, especially around the cross slide
what kinda stuff do you make?
mountain bike parts
im planning on wokring on camera mounts and stuff
good idea, i need one lol
well time for bed, adios
toast_ is now known as toastydeath
jt-plasma: did you make teh facing.py software?
I'll only be here for a min or two heading for Herman, Mo this morning
* jthornton heads out now and will be back later
Ahh now I underttand, we will talk later.. I want to make a small modification to the facing code...
no problem modify it all you want
is it acceptable to mount a DRO glass scale "upside down", that is with the linear seal pointing upward
i'm very worried about chips accumulating on the seal, but i can't really find a good way to mount it unless i do it that way..
Upside down doesn't sound like a great plan.
I suppose you need to decide how good the seal looks. Will you be using coolant?
that sounds dangerous
yeah there will be coolant
I think that it would be a "don't do it" then.
i think i found a way to monnt it the right way, but it will require a very elaborate mount.. :)
i'll take one the next time i'm there
If you can mount it upside down, then I would guess you can mount it right-way-up and fit the slider with a round-the-corner bracket?
[15:39:34] <DaViruz> http://media.photobucket.com/image/optimum
bf20 dro/bb1401/Optimum Pierre/Y-AxisOptimumBF20.jpg
[15:39:51] <DaViruz> http://i2.photobucket.com/albums/y46/bb1401/Optimum%20Pierre/Y-AxisOptimumBF20.jpg
that's how someone else did it
never occured to me that you could mount it slanted like that, hmm
Looking at it, I would mount the scale on the moving part with a static slider.
Saves flexing the wire all the time too.
one axis has to flex
the X scale was really easy to mount and turned out great
OK, so the slider mounts to the bed on a metal leaf, the principle is the same.
but i guess mounting the slider stationary is a good idea
i'm having issues setting my screen res
i did sudo displayconfig-gtk and i was finally able to select my monitor and resolution, but it wont save the settings
i also see "FATAL module battery not found" in terminal
phew, finally got my display configured right
do you mean like the resolution?
Ya it took me forever to figure out how to do that
pain in the butt, huh?
sudo dpkg-reconfigure -phigh xserver-xorg
that should do it, if you have the correct monitor attached
Oh now you show us an easy way :)
thanks SWPadnos. i'll try that next time
that also takes care of viceo card changes
i had to go manually configure the xorg.conf
you wouldn't have to with that command, in theory
where were you 2 hours ago lol
watching a bunch of idiots jump in the lake
and swim out to the ice
oh i thought it was bath day
the high winds kicked up just in time for the first group to jump in
those people are nuts
it's 11 degrees here
and there was about a 20 MPH wind
yeah, we got cold just watching
that's just stupid
raising money for the Special Olympics, so it's a good thing overall
it's like 62 in here and i'm cold with a hoodie on
yea, i guess you're right
I wish it was 62 in here, also with a hoodie on
and fingerless gloves
i'm in the garage, so no heat
thought about getting a space heater
It's 47 so I turned on the dryer to break thru the dampness
exhaust hose disconected
the garage is on the west side of the house, so it doesnt warm up very fast
the house blocks the sun
not that there's sun today, it's raining
when i get some time off i'm going to insulate the garage
it'll be the only room in the house with insulation lol
It REALLY helps
i have it in the attic
gotta run. see you later
the heat only runs maybe 15 minutes a day in the winter, and i dont use ac, so it isnt entirely neccesary
i wanna insulate the garage for noise control
screw noise, MORE HEAT!!!
I have a wall so 1/3 of the garage is well insulated and heated
it about 32 degrees here today
It doen't cost too much to heat my small room
i dont even notice it in the bill
Fine, I'll send you ppl my heating bill!
I really don't have a way to tell how much gas is for the garage heat since its all off the same meter
it's in with my electric bill, and my electricity usage fluxuates alot, so it's hard to tell
Jymmm: you have the option to live in any climate you want!
you already live in this crappy state, so why not live in the warmer part of it lol
bay area is nice though
danimal_garage: Send your CC over and I'll take you up on that for the gas, movign expense, and diff in rent =)
probably similar in rent, no?
I doubt it, but if you're sending your CC, I know for damn sure there won't be =)
even if the rent is more, you probably save an equal amount in utilities
haha, sorry, no CC's, i hate credit. closed them when i got the house
Fine, just send the deed
and i'll send my mortgage
Sure, I'll short sale it =)
i bought it short sale lol
i didnt buy at the peak so i'm safe :)
danimal_garage: Fatal module battery missing is on my startup too. I think that it might just be because the machine isn't a laptop, so has no battery.
andypugh: thanks, i found that out when i googled
cradek: How are these prices (single sided) http://www.elexp.biz/pro_7bs1.htm
it's funny how it says it's fatal as those errors can be completely ignored
it's fatal for something
it's fatal considering the loading of the exact module 8)
Jymmm: it works. yay!
SWPLinux: cool beans!
yep, just like the other one
it may be a little brighter, and I think the angles are better on this one
SWPLinux: brighter is good, you can always turn that down
SWPLinux: It's a bunch of nice kids down there.
so 23.5 was probably close :)
she's younger with braces
what is the math to figure out the resolution of my machine, if i know the ballshrew info and the stepper info
the kids that pg'ed it is nice too
he's an led flashlight freak too
frysteev: number of microsteps for your driver * number of steps per revolution of the motor / number of teeth on the motor pulley * number of teeth on the screw pulley * number of screw revolutions per unit of travel
heh - right up your alle
SWPLinux: Yeah, had to show him DX too
(note that the operations should be done in order, that's not the product of several things divided by the product of several other things, it's several things divided be one thing)
oh, nice reference there
.09 degrees / 5mm per rev on the ballscrew then. motor is directly coupled
so you're saying ssubtract?
.09 degrees is a strange number. is that due to half-stepping on the driver?
SWPLinux: you must really love that laptop =)
well, it works, and it has all sorts of software set up on it, which I need to use in Dallas next week
so replacing it isn't a great thing right now
I do plan to get a smaller one some time, for taking on non-business trips
you coulda got a usb lcd =)
remember that USB was flaky on this machine a couple of weeks ago. it seems to have fixed itself
SWPLinux: get one of these http://www.thinkgeek.com/computing/usb-gadgets/c609/
ok so my math is telling me that my motor will does 81 steps per mm on axis travel
Mac, Win2k, XP, Vista ...
I'm betting it's 80
SWPLinux: 'one of these things is not like the other'
.09 degrees is 400 steps per rev
400 steps / 5mm = 80 steps/mm
so i was close ish
i was trying to figure out last eveing if it had enough precisous to do pcbs
it's probably OK for anything using components you'd expect to hand solder
i just realizied why my bath ws off, there is not 365 degrees lol
years and years :)
too much time on frysteev's hands....
thank you, Styx man
Jymmm: oh shush
motor mount screws have been sourced and arriving this evening
ok, time to hit the hot tub. see you later
frysteev: you're teling me to shush?! I'll show you!
mhhhmm hhhmmhh muhhmmmmm
Jymmm: you wanted to about the ballscrew bearings on my machine no?
they are tobaki
andypugh: hey man - finally got the sherline workin... at least i can jog all three motors in each direction... it's a start
i'm ecstatic... :)
now i need to get each motor running well.... it's very erratic....
It shouldn't be at all erratic
Are the pulse timings correct?
Perhaps try increasing the step and space times. (what are they set at now?)
andypugh: i'll check later - that machine has been recommissioned by my friend for a bit :) anyhow, wanted to thank you
No problem, I like to think if I answer the easy questions it buys me the right to ask hard ones :-)
right on man - well the next step for me is going to be **really** fun
i've got this 3d scanner and am taking pictures with it... i want to mill those in styrofoam to cast them in aluminum using a small aluminum foundry... this is gonna be rad :)
styrofoam is a great medium for my mini mill....
That does sound like fun. I am considering making a furnace myself, as I have a few brackets to make that would be better starting from castings than solid lumps.
it's a great investment - it's taken me a few years to get it right - if you have any questions ask away
really you can build a nice one for sue with propane or charcoal for under $100 usd
I was looking to make an induction furnace (as backyard casting with gas burners is tricky in a second-floor flat) but I moved house and now have a back garden that the previous owner laid to gravel, which sounds ideal.
tear it up man - fwiw i ran my propane furnace on the balcony downtown on a tiny patio
I have a book on making one out of a Flower Pot (as I guess do many others here)
it's a very safe procedure mostly
i'll tell you the one thing i know - never cast with a mold directly on cement - the air pockets and moisture in wet cement may explode sending molten metal everywhere...
I have done a bit f foundry work, I used to work in a university Metallurgy department, so had access to all the toys.
nice - that's a great gig :)
It was. I keep thinking about going back to academia after weeks like we just had at work.
(Something that is my responsibility on paper is delaying production of a new product, supposedly at a cost of $1,000,000 per day. At a time when all the rest of the team of 12 are away for 2 weeks. I am feeling a little overworked)
* frallzor is bored
andypugh, machining related?
[22:32:10] <dmess> http://www.youtube.com/watch?v=crFGsZYM5vk
tarzan: Not even slightly. Machining is what I do to get away from work.
never heard Machining was relaxing
with hot chips flying everywhere
It can be relaxing for me to. When its a hobby there is no pressure.
Of course you still have to be careful about what you are doing
Yes, nobody is watching. If you get tangled in the machine, that's bad.
or if you spill your beer
Yes. Beer and machining is not recommended
Perhaps he is suggesting wine?
ah of course thats different :)
i have put beer bottles in the laser cutter though
...after drinking the beer
does the laser cut glass nicely?
but it engraves it and shatters it nicely
i would think the beam would go through
glass in the linear bearings
frysteev: what can you cut with your laser?
do you use EMC?
I would like a laser for thin wood or plastic but I don't know anything about them
the laser is fun.
"Do not look into laser with remaining eye"
but its an old 25watt one, it can really only cut acrylic and cardboard, everything else is basicaly engraving
[23:02:41] <alex_joni> http://www.dealextreme.com/details.dx/sku.11315
hmm low cost but I think it needs to be about 150X more power
buy 150 of them and point them through a single magnifying glass
Thas $4500 worth
Just one and a phase-conjugate mirror with x200 gain.
i guess you could draw some stuff on wood with a 200mW laser 8)
You can get a ~200 mW red laser from a bad DVD burner
I wonder how slow you would have to go to mark wood?
well, probably very slow
but that's what you can do with a cnc!
Yes start it an come back in a few days.
found another reason my the home button should be moved. I accidentally hit it when i ment to hit touch off, and almost busted my indicator since it was still in the part
not to mention i gotta re-indicate the part again
using an indicator as a probe??
i dont use probes
simple tool setter, shoot!
i installed a machine at my shop Messier-Dowty Ajax.... were nearing a year of perfect parts... 2 scrappers... 1 my fault... 1 the operator D's we wear them as badges of honour... bcz there nothing else
danimal_garage design for one =)
a simple yet capable one
i dont wanna use probes, i like indicators better
more peace of mind
old habbits die hard
I think ill try to make a simple classic one, plate with known thickness and a cable to the machine and then a cable to the tool
wont work if you're not machining metal
plate = metall
tool = metal
oh you mean for z
i'm indicating in a round piece of material for xy
nope, just mill mill
mill with A?
where does the roundness fit in then?
need to get xy on center
gotta do some deep trepaning, and i dont have the tools to do it on the lathe
so i'm milling them
launchast radio sucks now... it turns off every hour like pandora, and has a ton more commercials
this all started today
i guess back to pandora for me