Building a Pulse EDM machine

Mark I'm so happy for you and glad to see your jumping right into an awesome build.
Thank you GOD for answering our prayers for Mark AMEN. I'm looking forward to this they are Kool.
Thank you. I'm doing well but still dealing with the mini strokes. I guess they are a crapshoot. It either happens or it doesn't. The docs are watching and doing everything they can think of to prevent a major problem.
 
I am working on the ram while waiting for other parts.
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The slde and lead screw is assembled with the gear motor. I still have to install limit switches, a depth stop, and an electrode holder.
 
Mark,
If you need any decals for your panel I have some vinyl decal paper and can print them up for you. Just need a drawing with sizes. These are water slide decals with a white background. Or I have regular clear water slide decal paper.I
 
Mark,
If you need any decals for your panel I have some vinyl decal paper and can print them up for you. Just need a drawing with sizes. These are water slide decals with a white background. Or I have regular clear water slide decal paper.I
Thank you Bill. The control font panel is being engraved at a local engraving shop. But I will be looking for lettering for the head of the machine. I will let you know when I get that far.
Thanks.
 
I did some research with the manufacturer of the resistors and decided to change the setup to be more efficient. I made these heat sinks from some aluminum bar stock. They should work adequately with the fan blowing over them.

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Love that heat sink what is the size of it?
Nelson
 
Did you mill out or saw cut the fins? Cool little arrangement.
 
Would some holes drilled thru the fin bottoms let more air circulation for cooling. Just wondering ?
Actually.... no. The surface area of the heat sink dissipates the heat ... thus the fins , to increase surface area. The air bowing through the heat sink will help carry the heat out. I use a high grade thermal compound between the resister and the heat sink to aid heat transfer.
 
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