Mounting the Axis - Clem's numerical control

RE: Mounting the Axis - Clem's numerical control

mayermakes — Thu, 03 Nov 2022 13:28:35 GMT

the next entry is in the works, for those courious here is the Repo that will play a role in the next entry: https://github.com/mayermakes/Duet-2-Hardware/tree/master/Duet_Expansion/Expansion_big_Drivers

RE: Mounting the Axis - Clem's numerical control

DAB — Sat, 22 Oct 2022 17:38:44 GMT

Hi Clem, nice update.

I would mount the electronics above the machine with good vibration separation.

Less chance of metal residue or liquids getting into it.

RE: Mounting the Axis - Clem's numerical control

genebren — Sat, 22 Oct 2022 16:49:30 GMT

Looks great! On the electronics mounting, I would lean towards having the electronic mounted inside an enclosure that is mounted on the backside of one of the upright supports. Enclosed to prevent issues with flying chips and on top to minimize cable lengths. Great progress and continued good luck as you move forward.

RE: Mounting the Axis - Clem's numerical control

dougw — Sat, 22 Oct 2022 15:34:12 GMT

Cutting discs should be able to handle hard steel.

I don't have a feel for your vertical structure, but it sounds like mounting electronics on top is worth trying. There are ways to control vibration if it is excessive.

RE: Mounting the Axis - Clem's numerical control

shabaz — Sat, 22 Oct 2022 15:30:48 GMT

Hi Clem,

I know nothing about CNC, but just from manual experience, if I was building it, I'd maybe add 1 foot to the travel in X and Y direction, beyond what the maximum piece you wish to machine would be, i.e. if the maximum piece is 1 inch, then travel of 13 inches would be pretty good.

The reason I'm thinking that, is because you won't want to stop and start the machine to re-clamp stuff. With a manual machine, I have smaller travel, but at least I can re-clamp when needed (even though that is irritating). I'm deriving the foot guesstimate from maybe having several inches of material beyond the size of the end machined item, plus you may need say 4 inches at least on each side for clamping space.

As mentioned, I know nothing in this area so you're going to be better off with others' opinions where they have experience, than mine.