I’m finally getting around to a dedicated A-Axis rotary. Everything works great for general G0 moves or when just jogging with LB but when it starts a burn it stutters. I’m doing a simple 30x30mm cross as a test to make sure I have all of my configuration right and you can see in the video that the rotation axis
line comes out as a dashed line.
LB 1.4
Cohesion 3d Mini with the June 2019 Firmware and Config
More updates.
If I do a simple G1 A360 S0.5 F12000 it burns a perfectly smooth line completely around the test piece.
The GCode that is being created is very odd. Here is for a 30x30 box
30x30 Rotary Box.txt (755 Bytes)
Please refrain from duplicate posts.
I believe your issue is solved here.
Please reopen this post. I have continued conversation that needs to be had on rotary issues.
Done, My apologies.
Thank you. I realize they may have looked similar but it was definitely 2 stand-alone topics that just happened to cross paths.
So continued rotary issues. Turning off the smoothie pause delay did address the a-axis stutter although I feel that is a band-aid over a different issue since the x-axis works fine. However now it’s not connecting A and X correctly. The images here show it’s stopping the A before it reaches the end.
I really think this may be some sort of ramping issue for the rotary configuration but I’m not sure where to look next.
The adjustments to this are in the Cut Settings Editor.
In LightBurn, double-click the Layer where your line settings are. This pops up the Cut Settings Editor.
Click the Advanced tab toward the left side of the Cut Settings Editor window.
This is another correction factor.
Select Cut-Through and select Start
From here you’ll want to tinker with the Start pause time (ms) and End pause time (ms) with Cut Through enabled for both. This should close the gaps.
The docs are offered below for review.
Thank you, I’ll take a look at the docs around that.
Before I do too much more I think my tube or power supply is toast. It stopped burning completely and won’t even burn a hole in tape on the first mirror even though the tube looks like it’s firing.
I’ll keep those settings in mind for when I get back up and running. I think I just had a chain of issues all hit at once.
So problem solved. The tube gave up completely a few burns later. Picked up a new tube and all is right in the world.
