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1. Possible they would grind with using an Aluminum Oxide wheel, rotating both. TC or surface grinder
2. Putting the scotch bright arbor on a bushing (perhaps just a drilled slug) to hand hold against a running bench grinder wheel. Tilting the scotch bright wheel at angle so it would not run over about 500 RPM (or there abouts)
(X) I don't think you will have much luck with HSS or carbide tool bits and running on a lathe.
Just friction spinning against a carbide slug may cause the angle but this likely to be time consuming IMHO.
Hand hold slug chuck..about 25mm roung x 4" long .. drill a hole to fit SB arbor.. put in a few drops oil and hold against the bench grinder wheel with light pressure, just enough to get a spin.
Honestly, i have shaped em with just simple old broken bits of brick and such, bits of broken grind wheel work well, Not sure your going to be able to turn em with out tearing them, how ever sharp you make the HSS it won't be 2 secounds later!
Use one of these, it's what they're made for.
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How do you figure? Been using them for 30 years for dressing wheels or scotchbrite pads of all shapes and sizes. Besides, the OP is talking about dressing a scotchbrite buff, never going to hold an exact angle to begin with.Yea right...NOT.
Bob
I think you missed what the OP is trying to dress, and you're making it way overcomplicated. It's a red scotchbrite flap/buff used in a handheld diegrinder or foredom. Chuck it up in your rotary tool of choice, hold in one hand, hold the dressing stick in the other at the desired angle, dress to desired shape/angle. 30 seconds. Done.Yea right...NOT.
Carbide will not trim theses wheel without lots of effort. Sticks are useless.
We use the non-flap style to round or hone carbide in production of 100's or 1000's and more.
Yes it will eat into it given time. We comp that.
Assume you do not have cncs to do it but a bench grinder or even a hand cutout grinder can make you forms.
You want a straight angle, you do realize these are flexible guys right?
A straight angle dress or truing is easy on a bench or surface grinder. It will not stay true but usually does not need to.
Complex forms are messy but they are ground into the fiber/flap with rough standard grind wheels or profiled in in what are like cutoff wheels.
These things do not make parts to size.
They edge dress, de-burr and polish. Are you sure you are into the correct abrasive type for your job?
If you need to grind a controlled angle onto a part this is not where you want to be looking.
Bob
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