Debugged a function to mill a cone

Ignoramus8984 · 2010-07-28T01:16:24+00:00

Wrote another G code generator function.Given x and y of the cone center axis, z of the bottom and top, topand bottom radius, and a few other parameters like finish quality, Ican mill out a vertical cone. I first rough it out quickly, and thenmill the inner surface to desired quality. It seems to work. I am watching it right now on the webcam, sitting inthe family room. The finishing process with ball mill is tedious, Iset the finishing step to 0.01 inch.i

Jul 28, 2010 42 Replies

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Lloyd E. Sponenburgh 15 years ago

Ignoramus18915 fired this volley in news:BMidnU-QDfedfc_RnZ2dnUVZ snipped-for-privacy@giganews.com:

Well, Pete said your VFD already presents that information. My cheap little MotorTronics ME-2 doesn't. I'd have to go with reading and integrating the current via some low-resistance shunts.

But the Boss-9 didn't have the ability to do that as-stock, and it turns out some pretty nice work. You just have to work conservatively within the HP rating of the spindle motor, and the appropriate feed depths. That may not be "optimum", but I'm not a production shop.

LLoyd

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Ignoramus18915 15 years ago

I do not have the drive that Pete thinks I have. I ran out of those Toshibas (unless one is hiding somewhere). I have a Teco FM50 3 HP single phase drive. It does not provide current or power feedback.

I am not either. I just want to do a good job setting this mill up.

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Martin H. Eastburn 15 years ago

So you build a tiny analog computer and multiply V by I. Just a few op amps.

Mart> >> Ignoramus18915 fired this volley in

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