Only a month late with update.
I added a guide up the side on the infeed to make the angle more consistent.
You can just see it on the edge with the bar running under it.
I also found that having the bar supported at the height of the tool makes for a much more consistent feed.
About 27 rings per 3m length of 8mm bar.
The black stuff is slightly easier to use than bright finish.
Been busy with it today.
Making a life sized human torso.
More to follow in projects in a few days.
That sculpture is looking great so far I look forward to seeing it finished! Does the tube that the bar wraps around fit into a bigger tube that is clamped?
Here it is. I've only used 5mm bright up until now for some wine racks but had a length of 8mm black lying so tried that for the pictures. Piece of cake!There is about 2.500m on there. It can take 3.000m lengths of 5mm.
The principle is the same as most, slightly different take. Just shove one end in the hole and start screwing :-)
p.s. there is a use for all those whitworth sockets afterall!
a friend of mine has made himself a powerd ring maker with a 1000rpm motor some chain and sprockets and a reduction gear box. on the end of the reduction box is a length of tube with a piece of box section welded to its end. start the machine up stick the round bar in and move it over onto the tube as it rotates and it starts winding the rings after about 20 seconds hes got his rings simply twist the rings on the tube and the end comes of the piece of box section and you can slide it off the forming tube
pretty sure he said he got the parts to make it up for £80
for a manual method think youve hit the nail on the head there with simplicity good effort :-)