Okeu... MAYBEeeeeeeeee I coulda taken a lil more off, but it DOES fit now =)
I think I figured out how to square up and shave off that al block too... I just remembered I have some 2" x 6" architectural aluminum 'L' bracket... Will clamp a file to one edge, and toss some graphite (as a lube) on the other and start filing.
hektor's anti-wobble algorithm is shown http://imagebin.org/9597
but not explained. interesting path control over a very wiggly system. red is path, blue is paint. extra red are loops to let system stop wobbling before next stroke is painted.
ah, is that what the extra loops in the video are for... I thought that could be compensated for in SW
slow it down so not so much jerking motion
tomp: does he say how he's adding the anti-wobble loops?
oh an algo
no, i suppose it might be in his plugin for adobe, and i;m sure there's no feedback, just experience
I suspect where any angle greater than x amount
If he could only find spray cans that dry faster now =)
the mechanism is cool, 2 steppers and a length of toothed belt. maybe a 2d window cleaner for big buildings ;)
Oh no... I think he has a great application being artistic in nature.
Maybe an airbrush (or 10) with different colors
instead of spray can
the position is the length from 1 motor to the sprayer and the angle. polar, and the other ray,angle is like 'complimentary'
i think they tried multi color and had a bit of registration problems... there was a house, sky sun, lawn tree. with different colors
could be hal-ified
03cradek 07v2_1_branch * 10emc2/VERSION: 2.1.7 release
03cradek 07v2_1_branch * 10emc2/debian/changelog: 2.1.7 release
giant inkjet printer =)
tattoos for wisconsin women ;)
Actually, that might work... 0-256 == FF, RGB being 000000 thru FFFFFF = 16.8 Million colors
how to mix? time? orifice? what does the 8 bits do?
[00:42:43] <JymmmEMC> http://phs.prs.k12.nj.us/ComputerClub/html/images/rgb-colorchart.gif
That's not all 16.8M but you get the idea
[00:44:07] <JymmmEMC> http://www.printerspot.com/images/test_images/color_chart_OG.jpg
That's a tad better
tattoos for wisconsin women ;).... that just dont sound right...
and you know they have a boyfriend... cause theres chaw stains on both sides of the truck
I thought you just admitted to having a boyfriend.
I just read it wron
03cradek 07v2_1_branch * 10emc2/VERSION: bump after release
03cradek 07TRUNK * 10infrastructure/release-procedure: notes about making a release. mostly for me but also for the next release manager.
cradek has changed the topic to: Welcome! EMC (Enhanced Machine Controller) is a linux-based opensource CNC control. | Latest release: EMC 2.1.7 | http://www.linuxcnc.org
cradek: et al, thanks! (2.1.7)
Mmmmm 46000 RPM spindles
anyoen rememebr that ghost like proggy g4 something?
(Ghost for Linux)
On July 26, 2007, an explosion ocurred during a cold flow test of a nitrous oxide injector at a Scaled Composites test stand at Mojave Spaceport in Mojave, California, killing three, critically injuring three others.
great job on the EMC 2.1.7 release
fenn: do you have an article? I read a bit about it last week.
LawrenceG: I forgot to mention - the optos that I used are going to be obsolete. http://sales.digikey.com/DKES/op.asp?dkm=1944&pn=TLP2530-ND
when I first got the email from digikey - there was no direct replacement.. Now there seems to be. :)
the only reason i can imagine an explosion like that happening is if the nitrous oxide were contaminated with something flammable
no, would have to be inside the tank
like if someone cleaned the tank and left an oil film or something
wow, java 3D french type handwriting ( i think/imagine ) http://www.atomless.com/projects/sketchpad1/
cool - Mesa has a new USB / parallel port FPGA card (or will haev soon)
hektor's sister rita, has a tool changer http://www.hektor.ch/News/August+2005/Say+Hello+to+Rita/Rita.mov/
hi tech , that alum extrusion, packaged linear motion units, igus cable units, draws on rear... wayang kulit like ( indonesian shadow play )
anyone used OpenSceneGraph ? (www.openscenegraph.org)
or coin3d (www.coin3d.org)
trying to find something to base some cad/cam work on...
I suspect that the rendering of models isn't the hard part
it's the representation and manipulation of solids that gets you
it would be nice to get the selection, rendering and shading etc 'for free' from somewhere...
that said, both those packages look nice :)
I haven't looked at the brlcad gui lately but I bet it has the functionality you need underneath
awallin: thanks for updating the wiki stuff!
cradek: youre welcome. not sure if the date went right, in my part of the world your email arrived on 30 july... not that it matters too much
sure, it was 29th here, but it doesn't matter
hmm, there are a lot of these 3d toolkits, but I'd like to find one that is easy to use and cross-platform.
NET/mono would solve the cross-platform thing nicely...
look at ogre while you're at it
less powerful than OSG but its ok for most things
fenn: thanks, I'll look at it
hm, there's something like this too http://axiomengine.sourceforge.net/
which seems to run under NET/mono
steves_logging is now known as steve_stallings
jepler: re the stepper config generator, another functionality that would be nice to have is the minimum base_period calculation done in the ods spreadsheet on the wiki
lerneaen_hydra: I agree
well, that didn't take a lot of convincing ;)
agreeing that something would be nice is different from agreeing to implement it
It's not like I could code it anyway*
*not well in any case
not unless you want lots of nice big bloated java libs as dependancies :/
that would probably be a hard sell
yeah something tells me that too ;)
for around 50 lines of code
* skunkworks just put a lowball bid on a hermes vangard 7200 engraving machine at the local university.
hopefully no one knows what it is ;)\
lerneaen_hydra: stepconf is already a lot more than 50 lines of code -- 1000 lines python plus 7000 lines of "glade" (GUI layout specification)
did it take that much?
the gui code was autogenerated I take it
but the python code length seems longer than it would have to be...
yes, there's a terrible GUI for building gtk+ GUIs, and I chose to use it
I probably "clicked" more times in glade than I do in a normal month of computer use
need to take an action when the contents of a particular entry field is changed? It's 5 clicks in glade to add the callback. Now do it for 100 fields.
(I hate using GUIs)
oh fun fun fun
lerneaen_hydra: sarcasm or enthusiasm?
<jepler> need to take an action when the contents of a particular entry field is changed? It's 5 clicks in glade to add the callback. Now do it for 100 fields.
<jepler> (I hate using GUIs)
lather, rinse, repeat!
JymmmEMC: I agree that would be great, but glade has no support for programmability
of course, when I wrote a graphical GUI designer I made programmability the centerpiece, but it's still a POS and nigh-impossible to use
jepler: grep ?
or is it purely a GUI IDE?
JymmmEMC: you mean the GUI designer I wrote? It's for Tk, and it is not a full IDE -- just an editor for screen layout
jepler: I was speaking of glade. Inkscape even has a CLI
But don't mind me too much, I've never done GUI dev before, just played one on TV.
I'd LOVE to learn GUI dev though.
learn the win api from c then you will change your mind
archivist: Why do you think I never have thus far =)
Note for future reference... When you take a scrnshot that will be on public display, be sure to hide the eDonkey and KeyGen in advance. http://glade.gnome.org/graphics/win32.png
eDonkey, keygen ..... never heard of them cough
archivist: Yeah, in olden days donkey theft and mule jacking were common... eDonkey was a LoJack like thingy and KeyGen was like the chips they put in your car keys.
steve_stallings is now known as steves_logging
you could hack on libglade xml files instead of using glade
fenn: I'm going mad looking at all the 3D engines available out there...
awallin: i recommend avoiding them until you really need it
raw opengl is not as bad as it looks
yeah, probably a good idea...
alhtough I wouldn't want to implement selection and shading etc from scratch. but that can wait
maybe the doom3 engine? ;)
yeah, doom3-based cad/cam...
I guess it's raw OpenGL for now
awallin: Does that mean when you want to create a hole, you use a gatlin gun tool?
and a flame throw would be the erase/undo tool?
now that's what we need: a milling machine with undo
to reattach all the swarf, in case there was a bug in your gcode
or say you snap a tool -- you'd want to use undo
you just use the "putting on" tool for that
use a welder :P
or knurling tool (actually works)
and a welder doesn't ?
* JymmmEMC pulls out the 'board stretcher' to show everyone, for when you cut that 2x4 a lil too short!
ds2: I think you get that by using G33 with the wrong pitch number
I'm tempted to try "knurling" with G33
cut knurling... hehe
I'd have to cut a special threading tool with more relief than usual
but I've thought about it :-)
cradek: I did that once before, worked nicely
not 45 degree though
can EMC keep up or at least fault when it figures it can't feed fast enough for the selected spindle speed?
ds2: no, that's up to you
lerneaen_hydra: cool, any pictures?
cradek: hmm, don't think so, it's from when I was playing with my CAM app and G33
nothing particularly advanced with it as such
wouldn't you be able to do that with two g76 commands?
why should it not fault if you thread at a RPM faster then the feed rate since the programmer has no idea what the physical limits on acceleration/feed been set to?
then the allowed feed rate for the machine
don't you get a joint following error?
no, I think it will go as fast as possible (like any other time you program an impossible feed rate)
but that is "fatal" for threading, isn't it?
well, stopping in the middle of a thread could be way worse than cutting a bad thread
people would get a bit upset if they programmed a 0.1TPI thread and got 1TPI
that can't happen
only the other way around
in this case the programmer better know the machine capabilities.
it is TPI, not pitch
ds2: oh sorry
* alex_joni is beeing dense
oh btw, saw a machine this weekend that was doing 0.004" holes like it was nothing
that's a pretty small drill...
do you know what rpm?
and the 40,000RPM spindle was quiter them most 2000RPM spindles
40K on the one I saw, they claim to have a faster one
no, motor driven... the guy said "NSK spindle" if that means anything to you
they had a demo peice that looked solid then when you look through the provided microscope, you see a nice array of 0.004 holes
it is too bad they are using "FlashCut" on the PC to drive it :(
what material and how thick was it?
aluminum... think the cut area was about 0.125
that's a long drill too then
it looked like a 0.250 material with a circular pocket in the middle
I'm more impressed by the drill than the spindle :-)
heh...they were also giving a list of people that make those bits
I'm happy when I successfully drill a bunch of #75 holes (.020?)
even made a comment about those being the bigger bits
found their URL
[18:41:07] <ds2> http://www.cameronmicrodrillpress.com/
too bad they were saying it'll run about 26K for the one they had on demo
these guys have been busy: http://www.imac.unavarra.es/parallel/imagenes.php
wow that looks nice
yeah, some guys from spain working on an emc2 hexapod
I might have mentioned it when they started a couple months ago
some type of school project?
yup.. some research project I think
this is yumm: http://www.imac.unavarra.es/parallel/images/argazkiak/DSCN1686.JPG
a well funded research project by the looks of it
I wish I had a couple of these to play with -> http://www.imac.unavarra.es/parallel/images/argazkiak/DSCN1738.JPG
a bit slimy
i really dont see the point of that six-vertical-ways arrangement
alex_joni: what are the blue things?
alex_joni: how did you find that page?
JymmmEMC: servo drives
fenn: a german guy pointed it out a couple months ago
here's a guy who wants to do foamcutting
[19:39:30] <alex_joni> http://www.rsp-design.de/plotter/Foto112.jpg
yes we talked a bit
he's using pneumatic cylinders ...
was he in here?
he was asking about driving those pneumatic cylinders
and feedback from glass-scales
I just got one http://minneapolis.craigslist.org:80/bfs/356902482.html
for $130 :)
got to love what the universitys throw out.
I will probabaly power it up just to see what the control is like.. but I see emc in its future
it looks to have limit switches and maybe rolled ball screws.
I see circuit board milling in its future.. amoung other things.
wow, nice find
did you get the vacuum table too?
Thanks - I am excited. :)
yes - althouh I don't know if the pump is there.
I didn't really look that close ;)
it is steppers. (atleast z is)
when dad was working at the university - he said it was there in 93.. And they never used it ;)
(if it is the same machine)
interesting.. a woman on my local linux user group has a "sanding machine" with a dead PLC in it (she does cnc programming at a granite shop)
sounds like you should make a lowball offer.
i said i'd look at it, and mentioned EMC
oh - side work :)
crap. I think I would be better off selling the engraver..
controller is no good?
have not looked at it - I proabaly wouldn't use the controller.
Looking around ebay - they go for 2K or more..
I pick it up tomorrow - will have to see then.
* alex_joni heads to bed
good night all
see you Alex
cool. coming here for some reason?
or at least, CT or MA or thereabouts?
* fenn gets his ACME 10 ton anvil
today was an OK day
apart from having to fix the f*****ing washing machine again
skunkworks: wah! I want one!
if I add an encoder to the mill spindle, is that enough to give me rigid tapping?
can your spindle reverse?
not under software control :(
that can be fixed
do I need instantenous stop too?
i'd imagine blind holes are a bit more demanding in that regard
I'd think so too
so if I can reverse it undersoftware and encode the spindle...that's all I need, right?
trying to decide if I should do a quick and dirty tach for the mill or do something nicer and get more out of it
what kinda mill do you have ds2?
just a taig
heh. doesn't 'taig' count as royalty in the miniature machine shop world?
don't think so
what does then?
compared to most benchtop gear.
sherline or the other jeweler stuff
certainly not the harbor freight crap.
they are priced like royality ;)
there are some german machines
that are the same size os a sherline
except they're 8-10k
those are the same quality as a larger, good lathe
it also depends on what your cutoff is for "royalty"
like, if you are talking about "what a home shop machinist would use in that size range"
or "what someone who has work to do would use in that size range"
you can spend 100k for a lathe with a 6x12 envelope
I believe both the PERL 1 and PERL 2 are worth several million dollars and have that kind of form factor
i would call both those lathes "true royalty" in any form factor.
toast_: there are even more expensive ones that are smaller
you're going to have a hard time topping the price of PERL 2
oh million heh
or the 10 angstrom finish, I'd think
also then there's speed
I'm still impressed by the machine I saw yesterday
where a swiss screw machine will dominate in both speed and precision
and have a ridiculously tiny envelope
saw this yesterday -
[22:14:04] <ds2> http://www.cameronmicrodrillpress.com/
the CNC one
and the spindle at 40K RPM is QUIET
i don't know why you'd spend that much for that
(unlike the haas at 6KRPM ;))
you can buy a used VMC with the same accuracy for that price
can the VMC do 0.004 holes?
depends on the vmc
there've been a rash of cheap little VMCs with high speed spindles
for the die industry
starting to show up used
takes shrink fit HSK tooling though
VMCs I have seen are noisy
i uh, suppose
depending on one's definition of noisy
can you have a normal conversation of in front of one that is running?
i do all the time
the loudest thing about a machine is the cut, i have noticed
if the machine is really pushing the tool hard you won't be able to hear the person next to you
but that's not the spindle that's making the noise, that's the cutter
the haas minimill @6K is LOUD
dunno about the minimill
even a VF0 at 6K is loud
at 6k, i do not consider a Haas VF-0 loud
maybe you are deafer then I am ;)
it makes noise, but isn't loud
i guess if you are using a mill in an office or something
a very quiet spindle is a huge plus
besides, not everyone has 3PH for a VMC
or a VFD
[22:23:23] <JymmmEMC> http://www.shopbottools.com/prSalpha.htm
what about also need an air system and the space
i'm not saying a vmc is for everyone, man
i'm just saying, vmcs are usually not very loud
not everyone can hustle around 10k lbs of cast iron and motors
and i realize that.
there are iPods in people's ear 30 ft away that are louder then this thing
and i'm certainly not saying it isn't quiet.
Very Mean C*nt ?
vertical machining center
an enclosed mill with a tool changer
JymmmEMC: got the block machine down to size?
ds2: not yet, but I think I figured out how.
a-l-p-h-a is now known as a-l-p-h-a