I claim no credit for these, but they're along the same lines as Sir John's hex soft jaws. I don't know whether they're commercially made, or shop made on commercial soft scroll jaws:-


The dowel peg is threaded, and the radial distance between the centre cap screw hole and the four index holes is equal to the separation of the tapped holes in the scroll jaw. That gives 7 x 4 potential jaw positions, though you'd be unlikely to use them all.
I don't know if this one qualifies among all the smart shop tools in this thread:-

It doesn't show very well in the pic, unfortunately.
I posted a while ago pics of the big flywheel which just fitted in my lathe, I showed it with a boring bar set up for machining for a ring gear. The boring bar worked, but it was a bit slow as a heavy cut induced chatter, and the HSS tip had to be reground every couple of passes on the dirty cast iron.
I just got a LH brazed carbide tool, welded it to the end of a bit of rusty old 4" x 1.5" bar, and milled just enough off the side of the bar to get it into a QC holder. I could take serious cuts with that, & no need for regrinding.
I'd just got these pics ready, was about to post, when the site went down for the afternoon
Tim


The dowel peg is threaded, and the radial distance between the centre cap screw hole and the four index holes is equal to the separation of the tapped holes in the scroll jaw. That gives 7 x 4 potential jaw positions, though you'd be unlikely to use them all.
I don't know if this one qualifies among all the smart shop tools in this thread:-

It doesn't show very well in the pic, unfortunately.
I posted a while ago pics of the big flywheel which just fitted in my lathe, I showed it with a boring bar set up for machining for a ring gear. The boring bar worked, but it was a bit slow as a heavy cut induced chatter, and the HSS tip had to be reground every couple of passes on the dirty cast iron.
I just got a LH brazed carbide tool, welded it to the end of a bit of rusty old 4" x 1.5" bar, and milled just enough off the side of the bar to get it into a QC holder. I could take serious cuts with that, & no need for regrinding.
I'd just got these pics ready, was about to post, when the site went down for the afternoon

Tim
Comment