Still have some tweaking to do but blown away by how well the fixtures worked. Got a little tube clean up and prep to do before fillet brazing. Henry James Jig needs some dialing in as well.
Sputnik Fixtures Dialed in on respective mills. Hone the tube mitering process up next.
Experimenting with slotting tubing for dropouts on Sheldon Horizontal Mill. Vise allows pass through for stays and keeps various diameters centered on slotting saw. For tapered tubes the vise can be tilted to compensate and a round wire on the top of vee block makes for rigid setup.
Sputnik main tube fixture on the old horizontal mill.
Sputnik Chainstay Fixture on M22 Diamond Mill.
Another view of slotting setup. Cut a bunch of straight 4130 to dial it in.
Initial setup in jig. Got some more hours of cleanup and adjusting to do before brazing starts but happy with it so far.
Machined some vee grooves into some aluminum I had hanging around. Will add drill bushings at some point but works GE for now.
Completed the replacement of the brake bridge with a fender bridge/bracket. Used a water bottle brazon to attach the fender.
Finished the rear bosses and have the fork to clean up.
One old Peugeot Frame
650b Wheelset from Veloclassique
Removed old brake bridge to accommodate 126 Spacing..will replace later
Bag O Mafac brakes thanks to Veloclassique with canti brazon post
My makeshift canti post jig…more work to be done on the jig but should get me through.
After making a few modifications to the jig I have it setup on the tilting table. Did a couple of practice cuts and all went smooth.
Next up I will work on tube length, alignment and angles.
It has a lip screwed on to the base I need to remove…frozen/stripped screws. EZ Out in my future.
Ordered assortment of t-nuts and such so should be able to attach this weekend. Goal to have Bringhelli jig mount by end of weekend.