Good morning RJT:
Is it possible on your part to make a dam so you can have a little pool to put the trode into?
I've used stainless foil wrap for heat treating and a big hose clamp to make a 1 inch tall dam on the top of a tall part so I have a nice puddle to dip into.
I point a flushing wand into the dam and I don't care how much it leaks provided it's less than the fill rate of a flushing wand.
Excess pours out the leaks and over the top of the dam...since it's all contained in the work tank I don't care.
Resist the urge to use something like Plasticene for the dam...the dielectric oil will dissolve it and make a big mess as well as contaminating the dielectric.
I've never experimented with hot glue...I don't know enough about its chemistry to predict anything, but a test is simple and cheap.
The dam doesn't need to be an inch tall either...even a quarter inch is already way better than nothing.
You probably could get away with just hot glueing a bunch of scrap blocks onto the top of the job and butt them up together so the leaks aren't too big.
Or you could get fancy and mill a frame if you have a lot of parts to burn.
If the frame is heavy enough and the part is flat on top you can just lay it there and let its weight hold it in place.
If the job is ferrous (and magnetic) you can make the frame from steel and hold it in place with magnets.
Just don't let the trode ever touch it or you'll arc it to the job and trash the workpiece.
As a completely different alternative, I assume the part is too big to just lay over and burn sideways?
Cheers
Marcus
Implant Mechanix • Design & Innovation > HOME
Vancouver Wire EDM -- Wire EDM Machining