If you slow down the feedrate and the holes are more round, it's probably due to flex in the machine.
My gantry is set up with Mach 3 mill and runs DC servo motors via Gecko drives. I have the axis tuned so they travel the exact distance on a linear move. The problem
I have is circular pockets do not come out round. Is there somthing besides the linear tuning I can look at to improve the concentric result?
Thanks,
Scott
Similar Threads:
- Circles are not round
- Problem- semi round circles
- Need Help!- my circles arnt round
- Need Help!- Circles are not round
- Circles aint Round
If you slow down the feedrate and the holes are more round, it's probably due to flex in the machine.
Gerry
UCCNC 2017 Screenset
[URL]http://www.thecncwoodworker.com/2017.html[/URL]
Mach3 2010 Screenset
[URL]http://www.thecncwoodworker.com/2010.html[/URL]
JointCAM - CNC Dovetails & Box Joints
[URL]http://www.g-forcecnc.com/jointcam.html[/URL]
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Thanks for the suggestion. I will give that a try
Scott
It could also be due to backlash. That happens when a screw changes direction; there's a point where the threads shift from pressing on one side to pressing on the other. While it's doing that, the motor will turn but the axis won't move, so a circle will be distorted.
[FONT=Verdana]Andrew Werby[/FONT]
[URL="http://www.computersculpture.com/"]Website[/URL]