emac319
New Member
7 years as a manufacturing engineer
Posts: 33 
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Post by emac319 on Mar 14, 2017 16:17:35 GMT
I noticed on the arduino board that there is a spot for a chip for the a axis as well as a pin set for the motor. Couple questions:
Has anyone messed around with this before?
Does the current grbl software handle a axis positioning
If the software takes A axis positioning commands then I would think all I would have to do is create a fixture and mount the A axis motor to it. Then boom, I've got a four axis milling machine!
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emac319
New Member
7 years as a manufacturing engineer
Posts: 33
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Post by emac319 on Mar 14, 2017 16:26:58 GMT
However UGS from what I know doesn't allow manual movements of the A axis. So in order to set an accurate zero, you would need that feature.
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Post by Derek the Admin on Mar 15, 2017 4:47:31 GMT
Grbl doesn't support 4th axis movement. There may be some forks of Grbl that allow for this, but not it's not in the main branch. There is a spot for an "A" access on the CNC shield, but most people just use it to clone another motor to an axis.
It would be cool though.
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Post by aforww on Mar 15, 2017 5:07:27 GMT
Grbl doesn't support 4th axis movement. There may be some forks of Grbl that allow for this, but not it's not in the main branch. There is a spot for an "A" access on the CNC shield, but most people just use it to clone another motor to an axis. It would be cool though. I researched this awhile back and talked to Derek about it. There's isn't a way of making it happen with GRBL or the hardware. You would have to switch to an entirely different set of electronics and software. I though real hard about it about it but knowing I'm going to upgrade to a bigger machine, I though I'd just hold off. Speaking of which Derek, have you considered that for the bigger machines? Moving to something like the GeckoDrive G540? |
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