12-02-2013, 08:26 PM
Hi,
Thanks for adding the pictures Mike.
I think a lot of roughing out can be done on the lathe regarding making these wheels; obviously the simpler design will be easiest to start with as access is much better to each spoke but with a bit of imagination once a simple wheel has been completed you could expand on how you achieved it.
If it was me and I had a cast iron blank rather than a wheel casting for simplicity I would turn the blank to finished sizes regarding diameters and thicknesses adding the bore.
Now I would have to turn a suitably profiled cutter to round over the spokes one that would cut both on the end and face; such cutters could be made of silver steel quite cheaply; hardened and tempered similar to a router bit and I've done a quick drawing to explain better. I've added a quadrant curve but any curve to suit the job could easily be formed; such a cutter would not cut into sharp corners but such corners could be finished by filing if needed.
Then I would arrange a vertical mounting on the cross slide something like a vertical slide on which to mount the newly turned blank then with the new cutter in the chuck adjust the height of the spoke which would be accurately arranged horizontally; put the lathe in motion and use the cross slide to round over each spoke. This would be a starting point for me and at least an idea rather than a blank sheet of paper. Such jobs are time consuming in the extreme but most interesting.
Something to think about?
Kind regards, Col.
Spoke rounding cutter.
Thanks for adding the pictures Mike.
I think a lot of roughing out can be done on the lathe regarding making these wheels; obviously the simpler design will be easiest to start with as access is much better to each spoke but with a bit of imagination once a simple wheel has been completed you could expand on how you achieved it.
If it was me and I had a cast iron blank rather than a wheel casting for simplicity I would turn the blank to finished sizes regarding diameters and thicknesses adding the bore.
Now I would have to turn a suitably profiled cutter to round over the spokes one that would cut both on the end and face; such cutters could be made of silver steel quite cheaply; hardened and tempered similar to a router bit and I've done a quick drawing to explain better. I've added a quadrant curve but any curve to suit the job could easily be formed; such a cutter would not cut into sharp corners but such corners could be finished by filing if needed.
Then I would arrange a vertical mounting on the cross slide something like a vertical slide on which to mount the newly turned blank then with the new cutter in the chuck adjust the height of the spoke which would be accurately arranged horizontally; put the lathe in motion and use the cross slide to round over each spoke. This would be a starting point for me and at least an idea rather than a blank sheet of paper. Such jobs are time consuming in the extreme but most interesting.
Something to think about?
Kind regards, Col.
Spoke rounding cutter.
Happiness is a wreck of a cabinet to restore.







