Tungsten Grinder EU

This is a remix of Tungsten grinder from Clough42.
Diameter of hole is increased to 34mm large vacuum hose , it is also designed to be printed without any supports.

You are supposed to find M5 threaded inserts (16mm long), drill a guide hole through them with 2.5mm drill and use them as guide for tungsten. Tap the printed body holes with M5.

Don't be too perfectionist about having straight hole in threaded insert. Its not super necessary to be totally straight. You would need lathe for that. And it doesn't really make big difference in the end.

Stainless inserts are best but they are PAIN IN T A to drill. Steel ones are better. Don't try drilling 1.6mm holes for smaller tungsten (especially with stainless), drill will break. Just use 2.5mm hole. It works good enough for 1.6mm tungsten.

Compared to original, I thickened the neck part where the inserts are located. Just to make it a bit more robust.

I added “DIP” hole, which is meant for when you dip tungsten in filler rod and because it becomes so thick, you can't get it through threaded insert. So you use that hole without insert, consequentially it has more than enough space even though tungsten electoride is dipped.

If you use cordless drill to spin tungsten evenly, you can get really sharp tungsten. If you use hand, it takes a bit of practice to get it really sharp. If using hand - don't spin it too fast at the end, instead be really slow. Thats how you get it sharp.

I am using 25mm diamond discs from Aliexpress.

It fits all (most) normal dremel tools. The thread here is called 3/4-12 UN.

Original was designed to fit dremel perfectly. I use Ferrex tool instead. Sometimes I unscrew the sharpener a few turns or else the disc is too high. Adjusting it a bit is normal IMO. Use your eyes to find the correct height of disc/sharpener.