First off, a big thank you to Ryan for the awesome design! Super impressive, fun, and addictive to work with.
I’m working with a Burly MPCNC build, everything bought from V1 (except the rails). Control board is a Rambo 1.4. I’ve spent the last couple months working out kinks with leveling and squaring and developing a workflow that works for me. Now I’m moving on to more advanced stuff and am having an issue where my jobs are taking 3 - 4x longer than predicted by ESTLCAM and Repetier.
Do people generally see the ESTLCAM predictions being accurate for cut times?
Trying to think through this, and here is where I am at: calculating the cut time based on feed rates should be relatively simple in software, so the predicted time should be accurate (based on theoretical feed rate). So that makes me think it is a hardware issue.
If the problem is hardware, I would think the source would be either drivers, motors, or wiring. My thought is that I have to be losing current somewhere.
The Rambo uses A4982 drivers. The MPCNC uses 1 driver to drive two motors (for both the X and Y axes). Is that possibly splitting the current and leading to the feed rates being lower than my input in ESTLCAM?
I didn’t trim the cables that came with the kit, so I have a lot of extra wiring coiled up in a box with the control board. Has anyone had problems with current loss through excess wiring, or coiling the excess wiring up? (my background is engineering but definitely not electrical)
Any thoughts or tips for troubleshooting are appreciated!