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- laser.jpg
The old thread you found was fixed with https://github.com/stefanix/LasaurApp/pull/64 and new versions are actually derived from lasaurapp, the firmware was never rewritten from scratch AFAIK.
Judging from your photo you could probably trigger on the laser output pulse width using an oscilloscope. An old arduino with a few wires as "door sensors" should be enough hardware to debug this.
I'm not familiar with the current firmware any more. Maybe it could be a new symptom of doing too much work in the stepper ISR? Even during normal use, microsteps sometimes get delayed because the CPU is doing too much work during acceleration/deceleration inside the IRQ handler. If this is the case, then it should go away with a lower feedrate.
Am Sa, 4. Jan 2020, um 15:31, schrieb 'Christian Meyer' via lasersaur:
During fill operations our laser fires accidentally at the end of lines outside the actual engraving area. In the picture you can see the spots at the right edge of the letter. We are using the 14.04 lasersaur board with a BBB and the latest version of the driveboardapp.I searched the forum and found that thread: https://groups.google.com/d/topic/lasersaur/1i36ZNAvRFo/discussionBut it's for the (old) lasersaur app and as far as I understand the commit is already part of the driveboard app.How can this happen and how can we get rid of it ? Thanks!
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