@agwhitaker It's not a grinding tool, it's a cutting tool. So there's no abrasive, but since I see sparks flying, the toolpost spindle RPM is WAY too high.
I saw (as an observer) this type of method (but on a milling machine with a dividing head) used about 35 years ago, but I could never remember exactly how it had been set up, or how it worked. Thanks to your video, I can now see what I failed to see all those years ago! Thank you :-)
@stillbashingmetal Hi! I saw this method in a book about 20 years ago. And I do use it on millings with dividers. But there are not any bans to use it on a lathe :)
If you superpose both axis you get a PERFECT sphere with non-circularity not more than 0,01 mm. To do this I watch a pattern on the sphere. It must be like a square net...
I do not want. But there is no choice. I have an order. Usually I cover the bed with paper or film. Thanks.
sasafed1970 1 month ago
You do not want that abrasive crud all over your lathe bed, do you ?
agwhitaker 1 month ago
@agwhitaker It's not a grinding tool, it's a cutting tool. So there's no abrasive, but since I see sparks flying, the toolpost spindle RPM is WAY too high.
tylernt 1 month ago
I saw (as an observer) this type of method (but on a milling machine with a dividing head) used about 35 years ago, but I could never remember exactly how it had been set up, or how it worked. Thanks to your video, I can now see what I failed to see all those years ago! Thank you :-)
stillbashingmetal 2 months ago
@stillbashingmetal Hi! I saw this method in a book about 20 years ago. And I do use it on millings with dividers. But there are not any bans to use it on a lathe :)
If you superpose both axis you get a PERFECT sphere with non-circularity not more than 0,01 mm. To do this I watch a pattern on the sphere. It must be like a square net...
sasafed1970 2 months ago
I'd just put it in with a file.
coyotesish 3 months ago