Archive for December 13th, 2019

Mini-Lathe, Maxi-OD

This came about while tinkering up a shade for a repurposed LED downlight:

PVC fitting - boring setup
PVC fitting – boring setup

It’s a 4 inch DWV pipe coupling I bored out to fit the LED housing, which was ever so slightly larger than the pipe OD.

Cutting it off required as much workspace as the poor little lathe had:

PVC fitting - cutoff setup
PVC fitting – cutoff setup

Ignore the toolpost handle across the top. What’s important: the cutoff blade poking out of the QCTP, above the orange carriage stop lock lever, extending just far enough to cut through the coupling’s wall before the compound hits the coupling. The compound slide is all the way out against the cross-slide DRO, rotated at the only angle putting the tool where it needs to be and clearing the end of the coupling.

It ended reasonably well:

PVC fitting - LED floor lamp
PVC fitting – LED floor lamp

But, in retrospect, was hideously bad practice. Next time, I’ll make a fixture to hold the fitting on a faceplate.

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