somebody tell me where I left my Torx wrenches please
in the bathroom
must admit thats one place I haven
still in the box-o-tools I took to the CNC workshop
dang - my fastest spindle speed is just a wee bit higher than EMC is capable of counting the encoder
jmkasunich: how fast is that? ( where's the bleedin' edge )?
I don't know what it is in KHz
on my lathe, it can count to about 1800 RPM before it starts losing counts
how many counts per rev?
I have a pyvcp speed meter in my config - you start the machine, and the bar goes up, then suddenly drops
don't recall how many counts/rev
conveniently, the encoder is driven off of the "stud gear" which isn't direct drive to the spindle - I can shift a lever to reduce it by a factor of two
thats what I'm going to do for this project, just have to remember that when I set my G95 feed/rev
if I program 0.002, I'll get 0.001
hmmm gear sensitive G95
when I get my round-tuit, I'm going to convert over to using a 5i20 card
and I'll belt the encoder directly from the spindle, with no gearing
ideally I'll be able to remove the gearing from the headstock to cut down on noise and vibration
punches make sheet metal working SO much nicer
I had to "customize" the insert cutting edge, but I was able to bore out a spindle
so far I've just bored it cylindrical - there is still a bit of tapering to do, but I'll code that tomorrow
the bulk of the material has been removed
I had horrible chatter problems when I started - howling would be a better description
don't forget to comp when doing the taper
won't need to
the customization of the insert involved completely removing the tip radius and making it as sharp as possible
how the heck did you do that?
how's the finish?
I still plan to grind for final finish
these hones are cheap and handy: http://www.use-enco.com/CGI/INSRIT?PMAKA=MJ399-6742
I wound up way below the recommended SFPM for the insert too - they recommend 600-800, I had to go down to 300ish to stop the chatter
0.005 DOC, 0.001 fpr
I only killed 2 insert points before I got it right
the third did most of the work and still seems pretty good
sounds very promising
interesting leadscrew: http://cncloisirs.com/Construction/Entra%EEnementVictorSendas
google translation: http://translate.google.com/translate?u=http%3A%2F%2Fcncloisirs.com%2FConstruction%2FEntra%25EEnementVictorSendas&sl=fr&tl=en&hl=en&ie=UTF-8
gotta wonder how well the screw will hold up
is here somthing going on?
nobody here but us chickens
has sombody experience with blende to cnc?
sears is great. My 1.5 year old LG dish washer started to leak. The seal between the pump/chpper assemebly and the case started leaking. Went to lg site - no help. I went to sears and their part section and searched for the model number and poof - parts explosions. the seal is $19 dollars and will be here next week
(I bought it from best buy)
Sears does have one hell of a parts dept
easy to find things for sure.
I've found discontinued items, but not cheap
heh - I wish I could still get the back table for my drill pres..
(bought it at an auction - wasn't with it.
you probably can, just might be too expensive
no - we looked about a year ago.. discontinued item
it is an old drill press - 70's probalby
[16:27:18] <skunkworks> http://www.dickensheet.com/images/041908/Email1/100_5300.jpg
like that but should have a tilt table on the back side.
who makes it?
well - I don;t know..
Well, they might just have parts for it still.
But sears doens't make their own tools, might be ryobi, jet, or someone else just rebranded
alex_joni: are there exists nml commands to set offsets like G10 ?
skunkworks: what's a drill press "back table"?
micges: I don't think so
offsets are in the interp/canon
that is before NML commands get sent
Just this once .. here's the log: http://www.linuxcnc.org/irc/irc.freenode.net:6667/emc/2008-09-07.txt
was just about to bbl :)
alex_joni: carry on, just saying hi
In the middle of crating a ThinApp anyway
ok.. catch you in a while
what "Cutter gouging with cutter radius comp" mean ?
emc/task/emctask.cc 312: interp_error: Cutter gouging with cutter radius comp
micges: are you trying to cut a arc that's the same size or smaller then your cutter?
micges might want to use TRUNK - that's fixed for a lookahead of 1 move (or something like that)
fenn: what was fixed in trunk ?
cutter radius comp used to require an arc in every corner, now you can use it with sharp corners
but if you try to cut an omega shape, it will still gouge
this is not in 2.2 branch ?
i dont think so, but i dont pay too much attention either
it might be on a branch still (concave_comp)
yes it is
ok sorry for any confusion
fenn: I think that's in a branch, but cradek knows best
I got a rather tough question I think?
I got motion boards with pmd chips, They got serial interface, but I have not beenable to comunicate with the board as of yet.
They were used to run a dc motor with 360 line per inch linear encoders.
does anyone have experience with the pmd 3110 chips and boards?
heh you have to sign your life away to get the chip tech docs
signed away already and got docs, but am still clueless ,I figured It was standard serial comunication through a terminal program, but I may be dead wrong
if nothing else it has LMD18200t motor power chips.
re: chip data sheets. never goto one of those fsckn 'free data sheet' places. goto Digikey or RS or Mouser etc. put 'em away in a folder for quick reference later.
or the mfctr
eg: digikey hands me free link to http://www.national.com/ds/LM/LMD18200.pdf
hm, after running a few thousand inches of tests to make myself confident the machine won't stall with these vel/accel settings, I notice that there are a lot of shavings that look the same color as the leadnuts. that can't be good..
old nuts, or new ones?
forgot to oil?
or screws need a polish
jmkasunich: the old nuts
so I'm not sweating it too much
oil is a good thing
I need a special oil for a clock Im working on, it drives a worm with a wheel and its 60 to 1
using a hypoid axle oil at the moment
alex_joni, hi, did that dig-64 turn up yet?
is there a channel for eagle pcb cad? (#eagle doesnt exist) how to search this and other irc's for channels?
pjm_: yeah it did, thanks
still looking for an isa pc
aha! to put a db connector on bottom of pcb ... (to make the board 'plug-in' to existing db ) "Use the mirror -tool to move a component to the bottom side of the PCB"
I'd think there would be something here: http://freenode.net/faq.shtml
but I don't see a way to get a list of channels
I think /list works usually
jmkasunich: thanks, maybe i can learn how to use this ;)
alex_joni ok great, and did it arrive in good condition?
[21:18:31] <alex_joni> http://www.irseek.com/result.php?keywords=eagle+pcb
pjm_: looks like it
perfect then ;-)
pjm_: yup .. should be good
alex_joni: i picked up Tyan Dual PIII with several isa & pci slots from Weird Stuff, then got registered 1 gig mem, all under 100$US
this board reported to be good latency tests
[21:21:34] <tomp> http://www.weirdstuff.com/cgi-bin/item/15817
and the mem was cheap too
i got 2 sets if you need 1 set
tomp: shipping to eu might be a deal-killer though :D
no boxes, no ps yet
dunno, slow cheap or fast expensive = usual story
tomp: Tyan 2080?
tomp: Chek it to make sure that the bios retains it's settings between power cycles.
I have TWO of those baords one from weirdstuff, and the they both hav ethe same issue
[21:28:39] <JymmmEMC> http://www.weirdstuff.com/cgi-bin/item/15817
Supports up to 4GB of PC100/PC133 ECC RAM
hahaha good luck with that
prob spend as much on a few sticks of mem as for that whole combo =(
thats pretty hardcore for $60, tho
good night all
good night alex
JymmmEMC: mobo sez Tayan S1832D, with twin piii cpus, with 4pcs pc133r 256meg ecc sync cl3 ram. all untested so far
renesis a local house, 1G registerd mem < 30$
i had some 200mhz ppros, both mobo i got for it burnt =(
haha the first was an old school psu connector, blacks in the middle
it melted the fucking connector wtf
but yeah those systems performed way better than anything 200MHz should have
what? gnd in the wrong place?
no it was fine, working for awhile
i think something sorted, dunno
sound like a short, cuz melt = lotsa power
im an electronics tech i know all about melting connectors!
* renesis a pro at shorting shit out
then i think the other failure was just a bad psu
that mobo was atx
i just kinda got sick of dropping money on decade old hardware
was fun to fuck around with an smp kernel, tho
tomp: Ok, but just be careful. I even contacted Tyan about i so I guess it was a design flaw
tomp: you in sunnyvale?
renesis: stay away from my wires tyvm =)
JymmmEMC: chicgao ! :) will any atx case work?
jymmmemc: yeh man i get shakey with those probes!
tomp: Heh, it's a full sized board, so just make sure that you have at least 1.5" of sapce above the board in your case in the top right corner (with I/O ports facing left)
tomp: OH! Slot one, cpus'
didn't realize that, thaought you went for the slot 378
nm then =)
thx... lookin for a case, good advice
any atx case will do
weirdstuff is up the street from me, thats why I thought you werw in the area
ah, no but tiger direct main warehouse is just 15 minutes, and local outlet just 5 :))
But I would NEVER buy from them =)
i have no problems, and used 'em for years now. it's the cheap stuff king
tomp: But, I don't buy computer via mail order anyway
used 'em exclusively since 'computer fares' died
gotcha, i go to the warehouse... you're right
ok 12" by 9.8"
so, just be sure that the drive cages in the case you get can clear the mobo and it's cpus
should be easy though. it's not a full sized mobo
full size being 12" x 12"
yah been reading it! and 'only use 1 screw' !! interestin
1 metal screw
others gotta be [plastic
I count 10
pg14 of the pdf
ok, its what the pdf sez
3 at the top
3 in the middle
1 below that on the left side
and 3 on the bottom
and make sure to use that extra standoff too, or you'll fkex the PCB too much pulling in/out PCI cards
"TYAN recommends that you use only one screw to hold down the motherboard." page 19... no pissing contest, i'm just readin
Are you buying a shiny new case?
does it come with the plastic standoffs?
also, those extra screws help with grounding too
aint bought it yet, and i got bags o screws standoffs ...i can understand a single ground point tho, and multiple mechanical supports at same time
I'm the only one I know that actually has plastic standoffs, kind a raity (sorta kinda) and I hate them
they are a PITA to work with
i got drawers of 'em, (i work in edm where everything has to be isolated )
tomp: Also, make sure you'll have 2 to 2.5" clearnece off the board to accomidate full height DIMM's
thx for the size info & links. i oughtta see if these things were worth the money spent :)
Heh, it's Slot1, I had to goto tyan's archive of archies to find it =)
Heh, it's Slot1, I had to goto tyan's archive of archives to find it =)
might be a good deal, might be 180$ worth o crap. will buy >1< case to check em
don't buy a case, just use a spare PS and bench test it
if it works, THEN buy a case
good idea ( but i'm so cheap , a 20$ midtower http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3509676&Sku=TC3J-4512)
hang on, let me grab a tape measure...
tomp: ok, that case should work.....
tomp: I was concerned about the last column of holes on the right in this pic...
[22:14:24] <JymmmEMC> http://images.tigerdirect.com/SkuImages/gallery/large/TC3J-4512-d.jpg
but they clear the drive cages it appears
wow, maybe not
tomp: look here http://images.tigerdirect.com/SkuImages/gallery/large/TC3J-4512-e.jpg
tomp: see HOW CLOSE the 5.25" drive cgae is to the back panel?
maybe 1/2" clearnace at best
lookin at pics... looks good! thx my 10 holes line up (by eyeball)
if a cdrom drive goes past the back of the cage, it'll hit the DIMMs onthe mobo
and most do
I'm comparing to two cases I have sitting in front of me too
ah! time to leave the front off and let it hang out front :)
now you know why it's $20
spend $21 and get a better case
and a PS too
well, i can bring the mobo to the warehouse, and i see i got at least 1" of mobo bfore the dimms ( floppy & 2 ide cnx deep )
see i'd cheap on the box and throw money at the supply
(throws a nickel ;)
tomp: BUT.... if you get a big enough case, you could toss your whole CNC drivers in the same enclosure
if your so encliend
or double-wide like a mobile home =)
tomp: IF you have cpu/dimm issues, as a LAST RESORT... I might be able to sell you something, but I'm not cheap =)
$100 just to get me off my ass to tell you I don't have it =)
tomp: but act fast, as I'm proably throwing out everything today =)
or till the trash can fills up, whichever comes first
oh that reminds me...
SWPadnos: your crimpers are on my desk, hopefully I'll remember to toss them in my laptop bag
I'm about to do a sim install for my laptop with no RT. Got the tars from sourceforge, where should I place the emc2-2.2.6 folder before i configure and make ?
why the source?
instead of apt-get install
can it do a non rt sim with apt-get install ?
I'm not sure, never tried. alex_joniwould know for sure
JymmmEMC: thx, i'll try to get a p/s & test tonite
tomp: np, lets us know how it goes. also check latency
I'd asked a while back I belive sim required building to use non rt.
I can use sim with the livecd fwiw
JymmmEMC: I'll keep an eye out for alex.
Silly laptop/tablet has no cd drive
can you boot from usb?
And it doesn't support usb boot unless its a toshiba cd drive ..lol
SkinnYPup well, this is out then.... http://www.pendrivelinux.com/2007/01/01/usb-knoppix-510/
maybe everyone should have bought this $400 laptop
yep ... I like some of the pendrive stuff, had used some with DSL damnsmall
I got ubuntu and vbox running XP on it
I keep a usb stick with knoppix on me most of the time. just boot from usb... done
pocket os , best thing since sliced bread I agree
any suggestions to burn a 4.4G dvd .iso? just made my 3rd coaster.
media is dual layer.
i can see only 1/3 of disk is dark, and nautilus sez it has 128K total contents.
mounting the iso shows it really is 4.3G
anybody familiar with 30 taper tooling?
tomp: you still here?
Saw your notes about the wierd stuff mobo's.
NMTB 30 - or BT30 or CAT30 ?
got it in my lap now
hope to make stepper systems
I bought six servers with similar specs for $150 each. Rack mount 2 gig ram.
SkullWorks_PGAB: any or all
what do you want to know?
I'm doing some pondering on my spindle project, considering alternatives
They were clean as a whistle -- came from a rendering farm. They had 40 gig disks which I replaced.
what do they use to hold them in? drawbar? retention knob?
is that one of the main differences between the various flavors, like NMTB, BT, CAT, etc?
I just ordered 30 taper to do a spindle mock up too.
from what google tells me, the taper part is the same for all
NMTB uses a draw bar just like R8
(and Machinery's agrees)
Lerman: nice, i'm going into the pile-o-computers to see if any boxes/ps's are useable
CAT and BT usually have pull studs
ok, that would tend to rule out CAT and BT
(I don't want to make retention mechanisms)
NMTB has a solid flange - CAT & BT are grooved to fit a tool carosel
CAT 30 is rather rare
there is also QC30, like on cradek's mill
BT 30 is popular overseas
QC30 is likely a spindle mounted NMTB adaptor which pushes tool up instaed of using a draw bar
I dunno if the tooling for QC needs to have special flange shape and/or tolerance or not
in theory it doesn't need the drawbar threads, I wonder if they are there anyway
Erickson made units that fir R8 spindles and used NMTB 30
* SkullWorks_PGAB can't type today
cradek's (bridgeport BOSS) mill has the QC holder integral to the spindle, not an adapter
when you said that NMTB30 uses a drawbar "same as R8", did you mean same general idea, or does it use the same thread and everything?
yeah - I used to run one like that with a Bandit control
let me dig that one... I think its the same 7/16-20 as RB
I just found somebody on CNCzone saying that QC30 uses 1/2-13
[23:05:34] <jmkasunich> http://www.cnczone.com/forums/archive/index.php/t-10722.html
third post in the thread
and this guy says it's 1/2-16 ;-)
[23:08:23] <jmkasunich> http://www.cnczone.com/forums/showpost.php?p=234338&postcount=7
if its 1/2 then its 1/2-13
I ordered this http://i18.ebayimg.com/01/i/06/1f/84/f9_1.JPG
to maybe make a 30 taper spindle conversion for my X3.
don't understand - the X3 is R8, isn't it?
not sure if it will allow like - works he, but its in the browser cache
the pic works
yes, comes as R8
the R8 is deeper and fatter than the 30, so the back part of the 30 taper will be "in the breeze" I would think
is that back straight section on the 30 supposed to engage a precision bore in the spindle, or does it contact on the tapered part only?
R8 holders hang out farther than I like for anything over 1/2"
should only locate on the taper - the long part is for draw bar threads
ok - I was wondering, because Machinery's gives 0.685 to 0.692 for that straight diameter - not exactly precision, but most photos I've seen have it ground
it looks like both R8 and 30 are too deep for my project
I think they use that as a setting point when grinding
the spindle bore steps down to 6mm about 2.5" in
it would take a mighty skinny boring bar to open that up (or a carbide drill)
JMK using only small tools 1/2" and under?
for the most part
my plan so far is to use the Tormach system (3/4" collet, straight shank holders with a flange that engages the spindle nose)
might look at the Haas mini mill tool holder style
ah -much more cost effective
the trick is going to be making the collet - I had hoped to be able to use either the R8 or MT3 ones that tormach (and everybody else) sells
and they are working on a TTS version of a tension/compression tapping head.
but again, they're too deep
I need a collet with a 3/4" bore 1-1/2" deep, and an overall length (including drawbar threads) of under 2-1/2"
R8 is 4", MT3 is 3-3/16, 30 taper is 2.88"
can't find a link to a tooling pic - but the Haas "Office Mill" has some nifty 20 taper tooling that would be a good design starting point
but where would I buy toolholders
R8 is everywhere
30 taper not too bad
If I'm reading MH right, 20 taper is 0.875 at the gage line
ever see a U-200 Qwik switch
they are 20 taper
works great - just never became real popular
bah, MSC doesn't have any qwik-switch
ok both those are too obscure
the more I look, the more I like TTS
you could also make a TTS style collet using a 7/8" for toolholders which need alittle more meat.
the spindle dimensions make 3/4" a pretty good fit
I just need to make a collet that is only 2.45" long
hah - "just"
what are 3c?
2.688" long, max diameter 1/2"
SkullWorks_PGAB: Cut, cuss cuase you cut it to short, and cash to buy another one
[23:34:11] <jmkasunich> http://www.loganact.com/tips/collet.htm
man, have a few collets: http://shopswarf.orconhosting.net.nz/collet.html
jmkasunich: SkinnYPup was asking, do es one need soruce to install sim, or is apt-get install good enough
I'm not the expert here, but I'm 95% sure there are no binary packages for sim, you need to compile it
Oh. I thought it was included in apt-get variant
darn - none of the collets listed on that page that are under 2-1/2" long handle 3/4" rounds
I said I'm not the expert - I don't have anything to do with generation of the binary packages
how do you need to clamp it - maybe a tool collet might work
ER TG DA or some otherseries
well, the spindles already have spring drawbars (bellville stacks), so it would be nice to use that
dunno if you've already seen these or not - I've talked about them here before, but don't recall if you were there
[23:47:25] <jmkasunich> http://jmkasunich.com/cgi-bin/blosxom/spindle-project/part01.html
pics and drawing
I might just have a custom short version of an R8 made up.
that or MT3
I'm drawing both at the moment to see how they fit into the spindle
R8 would be easier to release the tool, MT is self locking
MT3 tend to have release issues - they need a good rap on the back to break them loose.
too bad there isn't any HSK collets - but then that would make things too easy
bbl - food be gettin cold.
I thought about making a custom collet with the front taper matched to HSK