tandem axles
27 Dec 2022 12:41 - 27 Dec 2022 21:19 #260392
by snowgoer540
Assuming you are asking how to set up the tandem axis, and not how to reverse the motor direction, then do the following:
1. On the appropriate output I/O tab, (P3 in the example picture below), choose the step/dir output that matches where you have your drivers hooked up. Click the drop down and choose Axis > Main Axis > Y Axis StepGen for the first one.
2. Then for the next step/dir output click Axis > Tandem Axis > Y2 Tandem StepGen
That's it for setting up a tandem axis. You will input all the step scale, etc. information in subsequent steps (it will say Y Motor and then Y Axis at the top of the pncconf screen).
As chosen, both motors will spin in the same direction. If you need one to spin in the opposite direction, you can click the "Inv" box next to "Dir Gen-B" for the motor that needs to spin in the opposite direction (this may require some trial and error, just be aware your gantry can rack if everything is attached and you don't get it right).
Below is a screen shot example from a rack and pinion system where Y needed to spin inverse to Y2. I included it because it can be tricky which Inv box to check.
Green is everything associated with Y Axis StepGen (Step/Dir output 1) and Red is everything associated with Y2 Tandem StepGen (Step/Dir output 2). Hope it helps.
Replied by snowgoer540 on topic tandem axles
I am trying to configure pncconf to have two Y axes (one rotates to the right and one rotates to the left) I need help
Assuming you are asking how to set up the tandem axis, and not how to reverse the motor direction, then do the following:
1. On the appropriate output I/O tab, (P3 in the example picture below), choose the step/dir output that matches where you have your drivers hooked up. Click the drop down and choose Axis > Main Axis > Y Axis StepGen for the first one.
2. Then for the next step/dir output click Axis > Tandem Axis > Y2 Tandem StepGen
That's it for setting up a tandem axis. You will input all the step scale, etc. information in subsequent steps (it will say Y Motor and then Y Axis at the top of the pncconf screen).
As chosen, both motors will spin in the same direction. If you need one to spin in the opposite direction, you can click the "Inv" box next to "Dir Gen-B" for the motor that needs to spin in the opposite direction (this may require some trial and error, just be aware your gantry can rack if everything is attached and you don't get it right).
Below is a screen shot example from a rack and pinion system where Y needed to spin inverse to Y2. I included it because it can be tricky which Inv box to check.
Green is everything associated with Y Axis StepGen (Step/Dir output 1) and Red is everything associated with Y2 Tandem StepGen (Step/Dir output 2). Hope it helps.
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