HP 41 screw post repair

[Karel]

I finally finished repair of my HP41C calculator.

Thought someone may find helpful how I managed to repair the screw posts that had stripped threads. It may also help repairing cracked posts.

I took a piece od brass tube with id 1.7 mm and od 2.4 mm, cut four pieces under 10 mm long, cut M2 threads in them, glued them inside the posts. I had to clear the holes a bit with 2.5 mm drill bit before the tubes fit in.

I found the correct diameter brass tube on Aliexpress. I could buy SS M2 screws locally.

All the best,

Karel