[Animats]

Fully enclosed with a chip vac is good. Chips all over the place is no fun. Especially with coolant.

Don't expect people to precision-cut wood for the frame. The Liteplacer people tried that for their pick and place machine, and most people never got a working machine. If it needs plates with holes in them, make them in bulk and sell them. Waterjets are good for that. The holes will be where they are supposed to be.

(The Liteplacer was a really good idea - a pick and place machine for assembling prototype PC boards. Camera controlled, with the input parts in partitioned trays rather than reels, it was slow but did the job precisely. The PixiePlacer seems to be the next generation of this. But, as with the Liteplacer, you can't just order the metal parts. You have to make them or have them made. There are commercial machines, of course, but they're for production, feed parts from reels, and are more expensive.)

[sottol]

Good point - there is a provision for laser-cut steel or alu plates that sit inside pockets inside the enclosure panels as I figured many would be turned off by a full plywood design.

The metal parts are symmetric so you can cut 2x of each - that is way cheaper on send-cut-send (afair only 25% extra for 2nd part).

[Animats]

> plywood design.

Coolant and plywood do not play well together.

[sottol]

The bottom panel is hdpe currently and "trayed", but you wouldn't run this machine with flood coolant anyway. mql might work but the idea was to cut dry, suck away chips and rely on coated end mills.

I've seen people experiment with diesel heater pumps for mql, might try that some time.

coolant always ends up very messy. even mql lubricated chips can be a relative mess compared to dry cutting.

[Animats]

> but the idea was to cut dry, suck away chips and rely on coated end mills.

You can go through a lot of end mills cutting dry. This is less of an issue for hobbyists who aren't turning large volumes of metal into chips and aren't using high-powered milling machines. The main limit on milling speed is getting rid of the heat. If you're willing to run slow, dry cutting works. Or if you only cut materials softer than steel.

At some point, you get Machinery's Handbook.[1] For most of a century, machinists' toolboxes had a built-in space for a copy of that book. Now it's available as an app.

[1] https://books.industrialpress.com/machinery-handbook/

[bluGill]

I like to think of wood CNC as a step in the kit to something better. If you do your operations rights errors can cancel each other out and so you get better results by having a few extra steps. Make the wood CNC, then use that to cut the molds to make a epoxy-granite frame, then transfer the electronics to the new frame.

[aaronblohowiak]

What about the lumen from opulo?

[Animats]

That's neat, but it's meant to get its parts from feeders. It's a small-volume production machine.