The inside diameter is approx 10 & 1/2
inches or 266 mm'ish and definitely is the smallest I could do
as the unit stands now. It was quite difficult to move the
ends out of the way when rolling, or they get caught on the
roller when they come around. there is approx 3 inches,
75mm of waste at each end of the ring that needs to be trimmed.
Sorry that the pictures are a bit fuzzy, that is what I get
using the smart phone!
Up to this point I am using a 1/2 inch drive ratchet to turn the
middle roller, and it is time to have a more aesthetic solution,
and a nice round ring handle is what I am going for. To do
this I need to be able to roll round tube, so more lathe work
and make another middle roller. The tube I have is 19 mm
diameter, 2 mm wall. So I need to machine a groove in
this. So here is my version of the popular internal radius
The body was made using a piece of 3/4 inch plate I had, milled
down to a rough size for the lathe tool holder. An old 1/2 inch
bolt, hole drilled through it for a 6mm piece of HSS and clamped
in place with a M6 cap head drilled and tapped from the top.
Then to make it easy to turn a drilled out M10 tacked on the
top. It will probably get a tidy up as some point but it works
Then with my new roller in the lathe I turned the groove.
Above is the new middle roller on the ring roller, I have space
there to add a 1 inch groove. I had to cut my own key-way
in this so a small tool was made to fit my boring bar head and
used in the lathe capstan like a shaper.
So back to making the ring handle, approx 1.8 metres of
tube and I end up with a 56 cm diameter ring after wastage of
the end pieces.
Took a bit to keep it straight and a bit of manual effort and
then welding it up and then standing on various sections and it
is not that bad.
This is the handle welded up and bolted to the bar to stop it
falling off in use. The spokes are 12 mm solid bar, left over
from a fence.
Over time I will make different rollers to try and match what
ever I need to roll, but for now a completed project.
If it gives you any ideas to make your own, then go for it.
Back to Top
Vibratory or Finishing Tub