Improved Mini-lathe Disk Turning Fixture

Unsurprisingly, the mini-lathe lacks enough stiffness to apply enough force to hold a disk in place while turning its rim:

Tour Easy Rear Running Light - end cap fixture - swirled adhesive
Tour Easy Rear Running Light – end cap fixture – swirled adhesive

The old South Bend lathe had mojo, but those days are gone.

So drill and tap that fixture for an M3 screw, then stick some coarse sandpaper to it:

Improved disk turning tool
Improved disk turning tool

Snug the screw (a Torx T9 from the Small Drawer o’ Random M3 Screws) down on a rough-cut disk:

Improved disk turning tool - in use
Improved disk turning tool – in use

Sissy cuts remain the order of the day, but the screw applies plenty of clamping force and doesn’t require the hulking live center.