Ah, brings it all back to me. Just thinking of a couple of the mods I did - I removed the curly airline and replaced with soft silicon, encased in a minature energy chain bolted to the inside of the front panel - just to avoid it getting tangled in the X/Y axis - There might be better ways to do this. Also, I 3d-printed a bracket to hold a single-axis red laser-line diode, centred on the final mirror, so that you get X/Y centre lines on the material under the mirror (you can't use a X/Ycross-hair diode, like I tried first, because the projected beam position is affected by the height of the material being cut)