3D Printing - repairing a Jlab headphone

For many years I did buy a headphone from a company called Jlab.
They are cheap (< 30$) and very good sound quality and comfort.

I think I did buy so far 4 or 5 headsets and the reason is because after a while they broke down.

Finally I was able to repair one !

3D Printing - knob replacement

I was asked if it was possible to print a replacement knob for a diagnostic machine.
This article describes what I did and the results.

The knob is for a laboratory machine, a thermal cycler S1000, from Bio-rad.
The knob is in plastic and is quite big.

3D Printing - Protective visor

Another thing that seems missing for many doctors is a protective visor.

I did fin a nice project and did try, not bad.