Hey Ryan awesome design!
Built to fit on 900x600mm sheet of MDF.
25.4mm (Bunnings) galvanised steel, approx 1.6mm wall thickness.
Metric hardware. Nb. bolts holding bearings are probably best done using imperial - the 8mm bolts tap into the plastic (despite carefully scaling to get all dimensions right) - the equivalent imperial bolts will just touch without tapping in. I might change mine if it doesn’t stay square.
I have 20-tooth gears on the stepper motors and will need to adjust firmware to take this into account before doing anything dimensional.
Pictures to come. The printer is hard at work printing a pen holder, then once that is done I’ll adjust the firmware, then will do a dremel mount.
BTW the heat sinks on the stepper drivers get very hot even with just brief testing. Came at 0.5V from the factory, I left it at that for initial testing. I’ll adjust to the recommended 0.7V when doing the firmware upgrade. Do they normally get that hot even with minimal use?