Any recommendations for some starter bits for the DeWalt DW660? I’m mostly planning on cutting plywood, possibly acrylic. The ability to cut carbon fiber (for quad frames) would be nice but I understand I’ll need some experience before going that route.
Depends on what sorts of things you plan on doing but I would say a single flute, a vbit, and a down cutting bit would get you started pretty well. I have them all in the shop or you can get them other places.
I almost exclusively use a single flute bit right now.
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The single flute upcut is a fast, pretty safe bit. It will tear up the top veneer on plywood though, so put the plywood good side down. Better plywoods don’t tear as much, just the cheap stuff uses so little glue that the splinters take quite a bit with them.
The downcut is great for the top finish, and the bottom gets a little torn, but since it’s next to the spoil board, it’s not as bad. The downcut has the problem of not evacuating chips, so it can’t plunge straight in more than maybe 2mm before dancing around.
The 45 degree v bit from Ryan’s shop is great.
Test your settings in new materials to get the speeds/depths right, and if you’ve got extra juice, go deeper, not faster, it will save your bits.
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When I look at the bit selection in the Forum store, some have what seems to be a plastic bushing on them, while others don’t What is the bushing for? Why don’t all the bits have them or not have them?
I think those are for registering the depth, especially on machines that have auto tool changers. I’ve needed to cut a little deeper, and I’ve pulled them off with some pliers before. They are just press fit.
Yeah when I talked to kyocera they are an added cost and people use them for different things, Basic depth or just identification.