On Mar 26, 4:29*pm, Robin wrote:
I'm working on a little project (a spotlight) that is basically a bit
of aluminium tubing, 50mm ID, 5mm wall thickness. I was wondering the
best way to close the end of the tube that doesn't have the light
shining out. I'm hoping to make it water resistant


Any other ideas? I'll be using my Myford Super 7 and indexable tools

d. Turn a plug 50 mm with o-ring piston seal groove. Use o-ring for
seal . Drill thru tube into plug and use roll pin, screw, epoxy,
whatever to keep plug in tube.


Dan