Hmm OK. I wish I could get the imc grade. 3rd the weight of rmc but thicker than emt sounds like it may be a sweet spot, but that’s just a feeling, I could easily be wrong and its still to heavy.
Any suggestions for how to support the rails? I assume it has to be low profile to not get hit by the bearings etc.
My main use would be wood mostly for signs, then plastic, also I have a 2w laser head attached to the USB cnc controller’s spindle on off pins so i plan on messing with that.