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I feel your pain. I was in the same boat a couple months ago. My only CNC lathe experience was hearing one run on the other side of the shop. Once I figured a few things out, I found MC lathe to be extremely easy. Can you post a screen shot? MY boss S%$^ canned maintenance so we don't have x8
What they said. I just cut a ton of this, 1/2 5fl, .800 depth, 12% radial, 4800 rpm and 120 ipm. I started drilling start holes at the entry points and my too life went way up. The helical entry seems to be a bit hard on the corners.
We inherited a bunch of jobs that were originally programmed for a 4th horizontal and converted to 4th vertical, and G68 was how they did it. Just thought i'd throw that out as an easy solution.
Actually, if you had bothered to read the OP, he wanted to try milling them because he doesn't have a grinder. So, for $600, the problem goes away, plus he gets a grinder.
Oh, and I was lying. I did buy a 1" 6fl carbide em for $50, but it was out of the trunk of some guys car, and I didn't have to go looking, he came to me.
I must be buying my tools at the wrong place. Where can you get a 1" 6 fl carbide em for $50?
At several recent auctions I've seen decent 6x12 manual surface grinders go for , give or take, $600
If you rotate the plug, the next hole will be passing through the center of the previous hole at an angle. Could be a problem. We've done this a couple ways. 1.You could drill the 1/4 through the first wall, then switch to a 1/4 dia long center drill and spot the hole on the other side of the bore. 2. Drill the 1/4 hole first. 3. Install a removable detail in the fixture with a 1/4 drill bushing in it.
A screen shot would help, but I think I know what you're referring to. When you turn the part over, it will cut air where it thinks there is material, but there really isn't. The only way I've gotten it to work is to split the toolpath in 2. Generate the first path at a depth that will remove the outer boundry of the stock. Then create a new stock model from that, and do a new opti rest using that stock model.
Volumill does the same thing. BTW, I recently did a side by side comparison of Opti rough and Volumill. Opti won by a factor of about 2:1. Volumill released a new version last month that sped things up by about 50%, but opti still wins by a huge margin.
If you're looking at the face of the chuck, POS would be Clockwise. From your earlier description, you're going backward. I would suggest getting it straightened out, as down the road it's an accident waiting to happen. I once worked at a place where we had several Richmill (talk about garbage) rotaries, and they were all wired differently. What a nightmare, and for no good reason.
First, determine whether the machine parameters are backward, or if the rotary has been wired backward.
With the setup you described, ie rotary on the right, moving A positive should rotate the work toward you.. (CCW if looking through the rotary from the back) Sounds like a parameter change
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