3 axis cnc for sheet material

[Robin Hewitt]

The machine in your picture has a very low gantry. If you could make yours even lower that would improve it by leaps and bounds.

Do not let pictures of machines with huge Z axis clearance persuade your to make it any higher.

Your machine is for sheet so design it for sheet. No silly overhangs, keep it tight

[voyager1972]

Hopefully I'll get a drawing done shortly as I've been busy with work lately,,,been looking at some products....would 80*80 extrusion be sturdy enough for the frame ,,,also 20mm linear rails and hiwin guide blocks for the x,y axis.....also rack and pinion on the x,y axis,,,driven by nema 34 steppers,,,the extrusion I viewed on k,j,n. aluminum profiles...

[Lee Roberts]

Hopefully I'll get a drawing done shortly as I've been busy with work lately,,,been looking at some products....would 80*80 extrusion be sturdy enough for the frame ,,,also 20mm linear rails and hiwin guide blocks for the x,y axis.....also rack and pinion on the x,y axis,,,driven by nema 34 steppers,,,the extrusion I viewed on k,j,n. aluminum profiles...

Yes.
Yes and Yes.

34's would be ott and a world of expenses, plus more. The "go to" nema 23's in the 3Nm flavour would do you proud.

.Me