General pointers for a CNC router

[scott88]

Cutting steel would just be a bonus, not really essential.

I plan to use 5mm box for the rail members and bolt them on.

[JAZZCNC]

3mm wall is too thin use 5mm on all steel sections.

Only use 12Nm Nema 34's if your using Mains voltage drives. If you don't use high voltage they will be slow.

[scott88]

Thanks for the info.

I must admit the electronics part is what worries me most about the project, I keep putting off the research

What's the reason for 5mm, extra rigidity or resonance?

[JAZZCNC]

Thanks for the info.

I must admit the electronics part is what worries me most about the project, I keep putting off the research

What's the reason for 5mm, extra rigidity or resonance?

Resonance mainly, rigidity comes from frame design mostly but there are other advantages like more material for threads.

[scott88]

Yeah, I was thinking of at least 5-6mm for anything that will hold a rail and 3mm for the rest, mainly for budget. I've seen people filling with sand, so maybe I could do that for dampening the high frequencies?