Lathe Handwheel - 2000s Axminster, Jet,

The handwheel for the 2000s year Axminster, JET and Charnwood lathes are rare as hen's teeth, so I decided to try a 3d printed option.

The internal thread on my lathe spindle (Axminister M950 Circa 2000s) is a 1/2inch BSW Reverse thread. I had to download a custom thread library (https://github.com/andypugh/FusionThreads) and add it to Fusion360. If memory serves, there was a change in manufacturer location from China to Thailand or vice versa, so the threads may vary!

Strength is needed for he handwheel; first attempts snapped and I had to buff the wall thickness and infill. The weakest point will be at the entry to the spindle, but so far so good!

I've left a 4mm hole in the middle of the handwheel which can either be reinforced with a screw, or left and in the worst case it will be easier to remove from the spindle.

I used Cura to slice this and specified;

• a 60% infill using an octet pattern.
• Four wall Thickness
• Alternate Extra Wall

You'll notice that on the handle there are two small sockets. These are there to glue a magnet into, so that you can then use a tachometer to get the accurate lathe speed. It's a fairly simple modification to add a battery operated Tachometer and mount it on top of the power switch. I've found it useful for these old Reeves drive machines!

With my Ender Neo v2 it took about 7 hours to print.