I tried to make some simple cuts tonight. I needed some shelves cut out of 5mm oak ply so I loaded a DXF from Fusion360 into Estlcam and created a simple part. I then used tile to repeat the cut 3 more times (see screenshot).
The actual cuts look terrible. The y-axis movements look pretty consistent in each part, but the x-axis movements are way off-- maybe 1/4" in some places. I’ve included some photos of the four pieces after I pulled them off the table.
I used the square check v2 from Thingiverse to get the machine square and then used the menu to move to my desired 0,0,0 and restarted the miniRAMBo to set the origin. Watching the x-axis movement, it did appear to sometimes ‘hiccup’ momentarily, although it was hard to tell. When it did, I couldn’t see if it was just the stepper stopping or if the belt was slipping, although I would find that hard to believe as I have the belts fairly snug. (Perhaps too tight? I never could tell how much ‘give’ they were supposed to have).
Thanks for reading and for your suggestions.