tag:blogger.com,1999:blog-7445819594773958579.post3926391828564812212..comments2023-02-04T18:43:54.637+08:00Comments on Wongster's Production: Hemingway Set-Over Centre: Making the 1/2 Centre - Part 2Wongsterhttp://www.blogger.com/profile/03583616007802325379noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7445819594773958579.post-9895547205315369132012-03-19T22:42:35.882+08:002012-03-19T22:42:35.882+08:00Genek,
I'll check the 2 things you pointed ou...Genek,<br /><br />I'll check the 2 things you pointed out in my next session.<br /><br />On the rough finish, I've no problem when facing. Should I use my carbide insert instead?<br /><br />Regards,<br />WongWongsterhttps://www.blogger.com/profile/03583616007802325379noreply@blogger.comtag:blogger.com,1999:blog-7445819594773958579.post-72113090724707955732012-03-19T10:07:43.938+08:002012-03-19T10:07:43.938+08:00Wong, two things to cover. First the wobble in the...Wong, two things to cover. First the wobble in the collet. How much of the rod was inside the collet? Just a comment about how I was taught on the watch makers lathe. Put the part into the collet and lightly tighten on the part. Run the lathe in reverse and using a piece of wood touch the part until it runs true and then grab the draw bar to tighten the collet and check if it was still running true. Even with the four and three jaw chucks I get everything running true from end to end before the final tightening of the chuck.<br />Your second problem of the rough finish it appears to be tearing, not cutting. Check the tool for a good sharp well honed cutting edge and that the geometry is correct for the metal you are cutting. I can't see just how the tool is shaped, make sure you have enough back rake to make it shear off the metal not scrape and tear.<br /><br />GeneKGeneKhttps://www.blogger.com/profile/02494711960616526424noreply@blogger.com