I'm in cleveland, and will be taking a pickup to the CNC workshop - so items loadable by one man can make it that far at least
I don't have a clue how you'd support a head by itself but there must be a way.
one of the many places on the east coast that's actually 300 miles from the coast ;)
that sounds difficult
K'zan you still dying for the manual I can email it to you.
Moving these pieces is easiest with 2 guys but if jmk has room for the return I could fit them on a skid.
Hi jmkasunich. How's your machine running?
quite well ;-)
tecumsah intake manifold for a minibike
I did 18 of them from raw castings for a friend
Did a similar thing as a kid for 327 chev
8 times as much work ;-)
You write the code by hand?
no - jepler has been playing around with a program that does offsetting
JMK what was the cycle time?
I wrote the basic outline of the port, then did offsets and xy shifts and z stepdowns
SkullWorks_PGAB: roughing, milling (with coarse steps) and drilling the holes was about 15 mins
the one in that pic was fine milled, that added another 10 mins or so
here is the coarse version: http://jmkasunich.com/pics/port-machined-2014.jpg
anybody know any tricks for measuring unknown tapers?
I have a small collet, 5/16" dia on the straight part, ~1/2" at the fat end, taper about 5/16" long
jmkasunich: internal or external?
I'd chuck it up in the lathe then take a dial gauge..
and measure it accurately enough to get the angle
that sounds like a plan
just need to make sure I have the center height right
if you have a toolfix or something like that you have a depth stop on them
I picked up a set of three today - 1/8", 3/16", and 1/4" - I want to make a small fast spindle to accept them
jmkasunich: if you have spindle ideas throw them my way :)
I'm just getting started - when I have something drawn up I'll post it
* anonimasu nods
I'd like to design a spindle that will handle fast speeds given good bearings and are easy enough to make
aluminium is a pain at 4krpm :)
the small diameter will help a lot for this
*yawn* it's way too late here
I saw a neat accessory spindle at the show, pics as soon as I pull them off the camera
guys were making engraving spindles from 8mm drill rod using skate bearings and buying the Proxxon collets and nut.
* anonimasu nods
I'd look at being able to use 10mm tooling for a spindle..
really simple - O-ring belt drive with a sewing machine motor
that's probably max you'd need
[00:17:03] <jmkasunich> http://jmkasunich.com/pics/fast-spindle-2028.jpg
also works as a PCB spindle
the top goes into the R8 taper of a bport
nice and simple - I just cringle at using a drill chuck for any milling (side load).
the chuck is for sensitive drilling - it's on a spline with a fingertip ring
[00:19:57] <jmkasunich> http://jmkasunich.com/pics/fast-spindle-dwg-2029.jpg
the chuck etc. comes out for "milling", he uses it mostly for engraving
* anonimasu looks at the datron spindles and sighs
I think I'd try to put the back bearing further up inside the R8 - the span between bearings is pretty short
ID of an R8 is only .950"
thats the spindle ID
skinny bearing? ;-)
collets are .948" at the rear and smaller in the undercut area
micro tools :)
micro-tools is all I'm interested in for this spindle
PCB drills and mills, 1/8" shank
maybe a needle bearing - but they don't like going fast ( comared to ball bearings
small ID grindstones, 1/8" or 1/4"
I mean, mounted stones with 1/4" shanks
I saw a crazy one - spindle was 3/4" OD and had a 3/16" drive shaft that went up thru a hollow draw bar and used a air die grinder to power it.
worked - but way too noisy for my liking.
[00:29:18] <anonimasu> http://www.datron.de/EinschneiderTest.725.1.html?&L=1
new videos ^_^
bring large amounts of money
it's insane :P
if my machine could do 1/10th i'd be happy :p
mcmaster has 5/16" ID, 1/2" OD, abec-7 ball bearings rated 39000 RPM, for $15.81
not angular contact, but for the tail end of the shaft, I'd just apply a light axial preload with a spring
one you have used top quality high speed iron it really does spoil you.
I havent :/
I have old slow iron
with a spindle speeder it'd rock :p
but selling your leg for one dosent quite cut it.
ah, walking is overrated anyway
yeah kidneys too :p
hey, you got two
spindle speeders just cost 10k or so
[00:37:29] <anonimasu> http://www.nskamericacorp.com/prod_machineTool_hes.aspx
Well I got to spend OPM (other peoples money) back before 9/11 before the economy to a dump and the last machine I bought for the company was a Mori Seiki SV50B 40"x20"x20" 30 tool ATC, 10,000 rpm 30HP spindle 9,2 hp servos with 1250 IPM rapids. - Scared the crap out of me until I got used to that speed.
must be nice
I'm stuck spending MOM
yeah it is/was
* anonimasu nods
I don't work there anymore but I can still visit and use the toys if they are not running a job.
Now 80% is lathe work, 10% milling and 10% robot programing/debuging
company assumes you can get 1 part per minute per machining cell
no margin for PM or other down time
and they wonder why they are always behind - the people doing scheduling have no clue about machining.
Been a long past couple, three days and I am *fried* gonna call it a day and rest some, getting grouchy which simply will not do :).
matlab refuses to play back my signal
over my audio
WE GET SIGNAL
anyone watch BSG?
all along the watchtower? what's up wit that?
turns out that blindly taking the fft of a signal does not always yield interesting information
maybe it will be more interesting after a few drinks?
but I would be more depressed about it
My roof is done - I'll drink to that!
they didn't finish until 22:10 - I was ready to kick them out before someone called the cops
I'm scared to tally up the receipts.
any one can suggest a complete (steppers + mechanics) cnc kit for a machine like the proxxon MF70?
dwery, google found http://www.kdntool.com/_sgg/m1m4_1.htm
archivist: thanks! the funny thing is that I saw that page this night.. and I can't remember why i discarded it! Guess I must sleep more..
or make your own
I need a fast path into emc and CNCs.. buying one that's ready made it's probably savvier
what kind of cycle time should I be looking for in motor transistors?
the rise time plus the fall time (Tr + Tf) should be small compared to the carrier frequency of the PWM signal used to drive them.
For instance, if you're using a 20kHz PWM signal with 10% output, that's a "1" for 2500ns then a "0" for 47500ns. If the transistor is slow to turn on compared to 2500ns, then you "lose" a lot of the time you wanted the transistor to be conducting.
Up here, "t'ink" is a local way of saying think.
hi I didn't know if this new turboirc was working
turbo? you seem about the same speed as the rest of us
new pc here at the shop
quad core 6600
last week I found out my $200 video card won't work with Solidworks
today I have a $500 video card to install
wah. that's more than I spend for a whole setup.
I was shocked at the prices of some of the "CAD" video cards > 2k
I commited a fix for the halui problem you reported a while ago
can you test and verify it works as you expect it ?
I have not got the download thing working yet
and for a few days the linux computer is in my shop with no internet ...
BigJohnT: do you even have emc2 from CVS set up on it?
if not, it's going to be a while till an update is available
hmm.. ok, then
i'll try to get the cvs when I bring the linux computer down to the beer cave
only if you feel like it...
I want to
oh, and my plasma touch probe works well
does an Onn sub ... Onn endsub have to be before the Onn call?
yes I think so
ok, that's how I managed to get it to work...
but at first I assumed it went last...
Yea I think Fanuc puts the macros at the end.
won't 2.3 be able to open a file?
O<myfile> or something like tat
oh the fanuc O word.
i don't know if that's a feature or not.
I thought I remember some chatter about that...
bbl lunch calls
any recommendations for linear slides? ( the extruded bodies with leadscrews and motor mounts )
tomp2: bigjohnt likes frameworld (because its cheap)
i guess you knew that already..
no, i didnt, thx ( tho i had heard of them)
ok, so any recommendations for 'linear actuator' ? ( the extruded bodies with leadscrews and motor mounts )
(gotta have the right buzzword :)
G'day all, got some rest and feel MUCH better :).
hello - does anyone feel like helping me debug a new installation? I'm getting an error stating "ini variable not found" in core_stepper
Be_identitycrisi: can you pastebin the hal file?
problem is, the line it references, 44, is a comment...
yeah, think so
are you sure you're looking at the right file?
actually, it's available on the probotix site, here: http://www.probotix.com/downloads/pbx.ini
and here: http://www.probotix.com/downloads/pbx_pinout.hal
I assume the core_stepper is a default
no, I'm not really sure I'm looking at the right file. I opened the default stepper config, told it to put a copy in my home and dropped in the probotix files.
can you paste the exact error?
core_stepper.hal:44 Ini variable not found
there is also a number hanging out there: 6306. not sure what it belongs to
that's close to [AXIS_0]SCALE
try changing INPUT_SCALE in the pbx.ini to SCALE
ok, one moment
(it feelis like the probotix guys did the config for an older emc2 version, and you're trying to run it on a newer config)
well, that made a difference. Axis loads now
now Axis comes up with RTAPI: ERROR: Unexpected realtime delay on task 1
is that something I can RTFM or Google?
yup, that means you have a problem with your RT system
try increasing BASE_PERIOD in your ini
hmm.. it's 40000, that's quite large
close emc, and run 'latency-test' from a terminal
[20:03:29] <alex_joni> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TroubleShooting#Unexpected_realtime_delay_check_dmesg_for_details
btw, I used the live disc to install
also, I can jog the steppers now from Axis. (slow, but they move)
I'm reading the wiki page now, just thought that might be a clue
you can increase the speed by moving the sliders
Alex - I don't know if you remember me
I wrote to you from Brazil asking some questions regarding translations...
fabio: could be ;)
Ok - sorry onnoying you all
as someone once said.. my memory is very good, just short
fabio: no problem.. just ask if you need anything :)
it's a fist time heme, and I don't know if i'm doing something wrong
The problem is that when I try to mill a simple squade (on a router) if i use let's say 1000 mm/mim feed rate
the square is OK
but if I speed up to 3000, the corners became round
G4 P0.01 ?
[20:59:52] <alex_joni> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TrajectoryControl
will see the manual for this...
G64 Px.xx sets a tolerance how far it can travel from the corner
Ok - will read manual for this
I tryed to create a button to send all actice axis to zero (like G00 x0 y0 z0)
buit stuk in some error cwhen creating a halui pin
how did you try?
I tryed to use the example in the wiki page
you can add halui MDI command to the ini file, and link halui.mdi-command00 or something like that
fabio: if you have the error.. I might be able to help
yes - i did that but i'm receiving an error message
I'm turning on the PC to post error msg to you
Alex - regarding G64 P0.01 - I'm working with milimeters - is there OK?
it will mean it stays about 0.01 mm from the corner
if you are happy with 0.1mm then you can use G64 P0.1
OK - now I understand...
but I don't know what you are making.. so I'm not sure what a good value is for you
No problem - i'll test the best for my needs
now regardind a auxiliary MDI button
I'm finnishing to open all files to say what I done
maybe it's faster if you run it, and tell me the error
sure, but I need to edit again to reproduce error
Ok - the error is:
custom_postgui.hal:8 pin 'halui.mdi-command-00' does not exist
did you enable halui?
[HAL]HALUI = halui ?
in the INI file...
try commenting the line in custom_postgui.hal
and run emc
can you point me some direction on hot to connect that line?
I'm net to all of this
put a "#" in front of the line
the it won't get loaded
only to say what I done
net remote-rapid-home halui.mdi-command-00 <= pyvcp.rapid-to-home
Ill comment this line now
that seems ok
Ok - now the program opens, but the button do nothing
did you put [HALUI]MDI_COMMAND = G0 x0y0z0 in the ini?
fabio: of course it does nothing.. that's why we disabled it
open a terminal
and type "halcmd show pin halui"
look for mdi-command pins
I found only halui.mode.mdi
ok, so probably it didn't see the MDI_COMMAND in the ini
only thing I can think of.. is check your ini file again?
my ini file is like this:
MDI_COMMAND needs to be in [HALUI] not [HAL]
sorry - you say halui section?
you need to add that
can I create one?
you have the mighty power
nope - the same error
maybe my power is not that powerfull
and from the terminal type "emc"
and do it again
the same error
if MDI_COMMAND is where it should be, you should see 'halui found mdi command: ..'
the program don't opens
I created a new section inside INI file named HALUI
did you leave the '#' in the custom_postgui.hal ?
should I leave the # there?
you should, until you see the halui.mdi-command-00 pin
can you put the ini file on pastebin?
it's fist time I use this channel
where I find pastebin?
should I send INi and hal files?
just a minute
the file or just the content?
[21:35:07] <fabio> http://www.pastebin.ca/992513
HALUI=halui needs to be in [HAL]
only the MDI_COMMAND needs to be in [HALUI]
Ok - all change now
Ok - now worked fine
maybe you have the power...
* alex_joni goes to bed
fabio: you'll get there ;)
good night all
Ok thnks a lot
I'll drink one beer for you!
did some one say beer
i just built a hole-popper ( edm drill ) as an add on to a std. sinker. worked great! fun :)
i wanted to make sure the stock spark generator worked ok. got 1/2 deep .016" dia hole with <.05" wear on tube.
(thats good :)