Workarounds to reduce backlash-related error

[pbmachine]

I've been helping a team fabricate some small cycloidal gears that need slightly higher precision than I can reliably get on the VMC I'm using. I've managed to get a lot out of dialing in my feed directions to keep the backlash direction consistent but it's a tedious process of hand-selecting points and paths and then adding in G60/G61 commands manually in the code. 

I saw there was a suggestion for features to reduce backlash in the fusion ideas board (RIP) though the discussion contained a lot of misguided claims that backlash is dealt with purely on the mechanical side. Unfortunately it doesn't look like anything came of it. One way I handle drill points is by using the xy order option such that the drill is always traveling in a consistent direction across the part - I either then add an extra hole point off of my part or insert a move in the code to ensure the first of a row/column is approached in that same direction. 

Anyone have any tips or tricks they use with Fusion to help with their toolpath accuracy? 

[marcus.toepke]

I think that could be a postprocessor thing to do.

But without knowing what you want in detail it is hard to tell a solution for it.

[da_fish]

I've dealt with backlash by changing parameters on the control of our RoboDrill before. If I'm not mistaken YCM also has a Fanuc control. I would recommend dealing with it in the control rather than the cam software. It was a while ago that I did it and I forget the exact parameters that I changed but there is information and video's online about how to do it.

[pbmachine]

To clarify a couple things that would be great to have is -

Better control over approach directions to keep backlash consistent 

- modifying the drill sort parameters to allow XY sort to be unidirectional (eg always left to right)

- allowing for lead ins/ extra moves to start the toolpath moving in a consistent direction 

Allowing for modal changes for manual GCode insertion- right now I can just use pass through but it would be nice to have some of those modal options (G64, G61) or even options to insert G60 within moves in a toolpath.