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Messages - Chaoticone

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1341
FAQs / Re: MAYDAY, I NEED HELP
« on: April 05, 2013, 06:06:12 PM »
What changed?  Did you change anything in the config?  Wireing? Hang any new lights in the shop?  What has been done between the time it was running good and when it started messing up?

Brett

1342
One on one phone support. / Re: phone support please
« on: April 05, 2013, 09:54:14 AM »
What kind of drives are you using?

Brett

1343
General Mach Discussion / Re: Panasonic servo drive help
« on: April 05, 2013, 09:36:15 AM »
 :)

1344
SmoothStepper USB / Re: Feed override causes jerky
« on: April 05, 2013, 09:22:08 AM »
 :D

1345
CS-Lab / Re: -M Home, Limits and Servo Drive CW/CCW Limits
« on: April 04, 2013, 05:36:15 PM »
 ;D  I dont have any neighbors with phones but could I cut the main line just past my house and dig it up?  That sounds like a option I may be able to afford.

My cabinet is the corner of an old dumpster with a tin foil curtain for the back and left side.  I would have cut the opposite corner and joined in the middle with some bailing twine but the night light was on.......  I have hopes it will burn out again soon though.

Brett

1346
CS-Lab / Re: -M Home, Limits and Servo Drive CW/CCW Limits
« on: April 04, 2013, 05:26:11 PM »
Donations gladly accepted!   ;D

Brett

1347
General Mach Discussion / Re: G76 threading issues - any thougts?
« on: April 01, 2013, 09:56:23 AM »
I have notifications on for this thread and notes of this being a potential bug.  The more we know, the more likely we can get it sorted. 

Brett

1348
You forgot to put up the adult rated content disclaimer Hood.................... I'm quite sure in some places this could be considered p0rn.  I'm lusting for sure!   ;D

Sure is looking good Hood!  You are gonna love this machine.  If you don't, I do.  It can even make the green look good!  Must admit, looks much better than I thought green could on a  machine.  Only thing I would change is it's location............ from your shop to mine.  :)



Brett  

1349
Very nice, thanks for sharing! Don't worry about it becoming an addiction...........  we have a 12 step program.  
1st Design
2nd Make and order parts
3rd Test fit
............... you get the idea.   ;D

Brett

1350
General Mach Discussion / Re: Cannot do G1with zero feed rate?
« on: March 30, 2013, 10:42:56 AM »
Great you cut your first part Peter!

Quote
I changed the native units back to good old inches, adjusted the motor tunings and looks fine

You should not change the native units at any time Peter.  This changes your steps per., motor tuning, tool table, work offsets, etc.  For example, if have a tool that is 3 inches long and .5 inches diameter when you change your native units that tool would now be seen as 3mm long and .5 mm diameter.  This is not the proper way and can create quite a mess.  If you work mostly in inches, the native units for the profile needs to be inches.  If you ever need to work in MMs as your units just create another profile and make it's native units MMs.

You don't have to change your native units to execute code generated to run in MMs or Inches. As Ray pointed out, you will do this with a G20 for inches or G21 for MMs.  Gcode is only units.  A G20 G0 X5.0 will move your machine 5 inches.  A G21 G0 X5.0 will move it 5 MMs no matter what your native units are set to and assuming your steps per are accurate.  Did you ever get any numbers on your ball screws to use to set your steps per? Have a look at this link and you will understand why you need the specs on the screws I think.  Screws with 5mm lead or .200" lead are very common and close to one another.  A 5mm lead converts to 0.1968498" per revolution where the .200" is exactly .200.  Sounds close right?  Now, the .200" lead will take 5 turns to move 1 inch.  The 5mm lead will take 5.08001 turns to move 1 inch so at 5 turns of a 5mm screw you will have moved .98424 inches.  That's out by .01576" per inch and this will be cumulative so multiply that by your travel.  If you command a 20 inch move that move would only go 19.6848".  That's out by .3152 inches or just over 5/16 of an inch in just 20 inches.  Over 40 inches that would double to just over 5/8 of an inch. I could cut closer with a band saw.

http://www.machsupport.com/forum/index.php/topic,12512.msg81001.html#msg81001

Brett  

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