They normally use something called a slitting saw.??is a short (6min) video on the basics of using a slitting saw. There are quite a few folks who use them, and Quinn at Blonidihacks demonstrates making your own slitting saw arbor:?
Both of these folks have larger machines, but the principles are the same. Just smaller! ;)?
Bill in OKC
William R. Meyers, MSgt, USAF(Ret.)
Aphorisms to live by:
Good judgement comes from experience. Experience comes from bad judgement.?
SEMPER GUMBY!
Improvise, Adapt, and Overcome. Physics doesn't care about your schedule. The only reason I know anything is because I've done it wrong enough times to START to know better.
Expect in one hand, expectorate in the other. See which one gets full first.
On Wednesday, April 19, 2023 at 09:52:35 AM CDT, Steve Johnson <steve@...> wrote:
I am casting a new motor mount for an SL Unimat. I'll be using green sand, cope/drag, and as such I will have to cast it with the slot/slit(?) on the clamp side filled in. I'm at a loss trying to figure out the best way to cut this back in after casting. Band saw? Too thin. Table saw? Too thick. Unimat? I don't know where to begin.
So this is what the original motor mount looks like:
This is the printed 'positive', and is what the aluminum casting will look like: