Re: 4 axis g code not generating circular interpolation

Originally Posted by
1mmtolerance
Hello guys,
I have a excetek v400 wire edm. When generating g-code for a 4 axis operation for a truncated cone, it doesn't generate circular interpolation(g02,g03) it generates hundreds of linear interpolation(g01) instead, and obviously when running the program, the lines are visually noticeable, any ideas why it is doing this?
any help would be a appreciated
Your CAM system or post-processor doesn’t support 4-axis simultaneous interpolation using G02/G03 arcs, or it’s configured to linearize all toolpaths into G01 moves.
In wire EDM, especially for taper or 4-axis work, many post-processors opt for linear approximations because:
G02/G03 with dual contours (upper/lower profiles) can be very complex and not all controllers support true 4-axis arcs.
The Excetek V400 may not support 4-axis helical interpolation, or your post-processor assumes it doesn’t.
http://cncmakers.com/cnc/controllers/CNC_Controller_System/CNC_Retrofit_Package.html