Show us something that you MADE

Cutting 0.5" tungsten carbide rod:

Today's work, cutting a custom tool holder for a Multifix tool post:

In reply to kb58 :

I work on some crazy E36 M3 but I have no idea what's going on here. please explain.

In reply to kb58 :

I understand the concept of EDM machining but I have no idea in practice how one is made and out of what components.. I'm interested to know how you built it.  Plans, from scratch, ?

I bought the high voltage generator from the developer in The Netherlands - don't get me started about tariffs - and he also provides an open-source 3D model of a suggested machine. It's a ton of work because CAD is needed to isolate each and every part, assign dimensions, then fabricate them. He has an entire YT series on it, and here's an overview:

EDM works by imposing a high voltage on a thin (0.010") brass wire that's rubbed against a work piece. The high voltage arcs to the work and transfers a tiny bit of the work onto the wire, which is constantly moving to always provide clean wire. An XY table (kind of like a 3D printer) moves the wire through the work, typically VERY slowly. Extremely intricate machining can be done on anything conductive. Going through aluminum is no different than going through tungsten carbide, etc.

A friend of mine has been building himself a new house and he asked if I’d be willing to fab up some guardrails for him. 
 

I of course agreed, and this is (one of) the end results-