Nice! I am interested in a large scale one! as soon as I get my normal scale one working properly..

I changed the extruder to a geared extruder - it works really well, but I'm having trouble calculating or knowing how to calculate the new steps per axis. Nothing else on the machine changed, so it's wierd.. The extrusion is perfect, it's not the extruder steps, it's the Z steps.

My print starts off really well - the first layer is perfect, but instead of it raising the Z axis by 0.2mm increments to print each layer, it does the base layer perfect, then the next one at like 0.4mm high, then the next one at 0.8mm high etc..
It's way out of whack :/

Oh well, gonna be one of those Sundays!