Help! > Machines, Tools and Fixtures
How would You Do it?
PaulR:
Thanks all for the replies, seems like what I planned to do (again) is as good a way as any.
Jo: Ah, I see that's a wider notch than I was visualising, so effectively it's a double headed tool. Problem is I'd need to make a holder for it as well but I like the idea!
Jason: Yes, that's what I've done in the past although with a bit more point to the tool - I don't recall running the lathe in reverse to do it though.
Art K:
Paul,
I just happened to catch this post. I did something similar to what Jason did, I will put a link to my build post.
https://www.modelenginemaker.com/index.php/topic,3653.msg66100.html#msg66100
I was turning the flywheel for Val I have a lathe tool that is HHS and a fairly sharp tip. Used it like a boring tool on the outside of the lip running the lath in reverse. Then put the lathe in forward and turned the hub. I think I just happened to have that tool ground that way. It also helps that I have an indicator that clamps onto the ways to have the two halves match up.
Art
PS the setup is post #41
PaulR:
--- Quote from: Art K on February 13, 2025, 02:01:17 AM ---Paul,
I just happened to catch this post. I did something similar to what Jason did, I will put a link to my build post.
https://www.modelenginemaker.com/index.php/topic,3653.msg66100.html#msg66100
I was turning the flywheel for Val I have a lathe tool that is HHS and a fairly sharp tip. Used it like a boring tool on the outside of the lip running the lath in reverse. Then put the lathe in forward and turned the hub. I think I just happened to have that tool ground that way. It also helps that I have an indicator that clamps onto the ways to have the two halves match up.
Art
PS the setup is post #41
--- End quote ---
Thank you Art. When running in reverse I take it you're working on the 'far side' of the rim so the same tool can be used (to cut on top as normal)? I don't think my cross slide will reach that far without swinging the toolpost round which then puts the tool at the wrong angle.
john mills:
I would grind a tool out of either HSS brazed on carbide (i have lots of plain grade) worn tips from when i did a lot of work on milling machines
shape to turn both in side and outer radius i like a bigger radius in the corners with the lathe running forward only.
PaulR:
--- Quote from: john mills on February 13, 2025, 09:42:30 AM ---I would grind a tool out of either HSS brazed on carbide (i have lots of plain grade) worn tips from when i did a lot of work on milling machines
shape to turn both in side and outer radius i like a bigger radius in the corners with the lathe running forward only.
--- End quote ---
Would this be a long thin tool shape like the one in Jason's photo that you angle depending upon which corner you're working on?
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