MechMate CNC Router Forum - Understanding & Selecting gear pinions

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MechMate CNC Router Forum (http://www.mechmate.com/forums/index.php)

- Driving Mechanisms: Rack/pinion, gears, screws, belts & chains (http://www.mechmate.com/forums/forumdisplay.php?f=24)

- - Understanding & Selecting gear pinions - setting the steps per mm[inch] (http://www.mechmate.com/forums/showthread.php?t=239)

Gerald D

Mon 04 April 2011 04:46

Quote:

Originally Posted by David Bryant

Hi
Just redid calcs and set the new numbers into Mach3 put it all back together, still out by 1-2mm in 1000. ???

Did many of you guys get the exact number or does everyone set up by adjusting afterwards?

Cheers
David

Have got 5 tables running with 3 different motor/gearbox combinations and 2 different rack suppliers/pitches. ALL of them were set to the calc and needed no tweaking afterwards.

David Bryant

Mon 04 April 2011 15:50

Thanks Gerald That is what I expected. I will keep looking.
Cheers
David

sensei

Sun 20 October 2013 03:23

Please somebody give me an advice. If my Motors 86HS9802 is
200 steps * 10 microstep = 2000
2000 * 3 times belt reduction = 6000 steps per rev
travel per rev = 3.14159265 (tooth distance = Pi) * 30 tooth = 94.2477796

steps per mm = 6000 / 94.2477796 = 63.6619662
what "Move speed mm per minute" and what "Min freq. kHz" is ok to use thank you

danilom

Sun 20 October 2013 12:05

These are same as mine, I use Velocity = 18000 , acceleration = 600, this works with 25khz kernel speed.

sensei

Thu 24 October 2013 08:45

thanks Danilo ... did you cut at that speed and what materials

danilom

Thu 24 October 2013 12:34

Those are rapid move G0 feedrates. For cutting I rarely use over 4000mm/min

IamDave

Thu 03 May 2018 05:43

Was this whole conversation, a discussion on what Mach 3 does automatically for you when you tune the motors?

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