Where can I change the Rapid Move speed? I would like it to move at Y speed, but even X speed would be okay too. I know ‘Safe Z’ is set in the CAD, but I don’t see where I can set the velocity anywhere.
1 Like
You can change your max-jerk from 1000 up to 15,000 in your motor settings for motor 0, 1, and 3 (change your units to metric first in settings). Might consider going up incrementally. Try going to 5000, and if not what you want then 10,000. Follow along with video attached.
4 Likes
Hi Scott
Movement speed while cutting is controlled by the feedrate and plunge rate. The higher the number (inches per minute) the faster it will cut but certain factors may cause the bit to fail. The movements between cuts (Rapid movements) are set with the max-jerk settings. This is the rate of change of the acceleration moving from one function to the next. I’ve found that the optimal setting for max jerk is 10,000 km/min^3. You can really notice the rapid movement if you were to design a file say 20” deep x 24” wide and create a circle 1/2” dia x 1/4” deep for area clear near each of the 4 corner and create the toolpath. While cutting the circle, you’ll see that the speed will cut at your feedrate and plunge rate setting but when moving to the next circle (rapid rate) it will travel much faster between circles based on what you have the max jerk set at. As I show in the video, these are set under setting → motor 0 for x, motor 1 for y or motor 3 for z
1 Like
I have made this change myself, only to change it back. While three hours into a five hour carve, the Z axis failed to move correctly. I feel it was due to this change. I had run this code several times before the change with no problems. This was a repeat job. Changed setting back and everything ran as expected. Beware trying to save a few hours. It may cost you material and even more time.
As I typed this, the machine messed up again. Probably scrapping my project. The only things that are different are the Z20 upgrade I did. Anyone else having issues when upgrading to the Z20? I loaded the factory settings when installing. The only thing I changed was the stall homing settings. Also added an 80mm spindle. Could weight be an issue?