:beer: Thanks Redlyne

With the head pretty much finished I pressed the switch into place but had to remove it because it seized up when i pressed it in. The switch is made of titanium but the tolerances between the 2 parts were tight enough that the pressure of being pressed into the aluminium compressed the outer ring and gripped the button. It took me ages to work out which part was actually rubbing and I fitted and refitted too many times. Needless to say it was a real PITA :weary:

Centering rings. As noted above i don’t have the size needed and figured it would be faster to make some than wait for a delivery which would be a minimum 2 weeks.

This resin was not strong enough

This plastic was not heat resistant enough

I didn’t get many pictures but this circiut board was mounted to the lathe with double sided tape which wasn’t up to the task.

I tried a piece of carbon rod but the direction the fibre runs makes it very weak for this application. To the point it could not be machined.

I made a bar of 2 part epoxy putty. I was able to shape this stuff but it feels kinda fragile.

Not satisfied I revisited the circiut board idea with a better way to mount it. I had to trim the screw head to get the shape i needed on the board.

I’ll send David both sets. They’re not pretty but they’re functional