edm machines

[RobinParticipant @robin]

Two thoughts: If using paraffin, avoid peristaltic pumps, paraffin degrades silicone tubing. If you are using it to despike a 6 pounder cannon, do not look down the barrel when you hear it start to break through, the paraffin fumes will detonate. It only goes chug but makes you jump and your eyebrows will be at risk.

[Andre ROUSSEAUParticipant @andrerousseau66124]

In reply to Dunc's post on the POPULAR SCIENCE article, it was a very simple and interesting circuit but there was some dispute over whether the Diode orientation was correct. Also, as I recall it never made any mention whatsoever of how the electrode was advanced except that the pictures I think show a simple hand-wheel, bit tedious if you ask me and left me puzzle as to how the discharge spark could be maintained (at half line frequency). Also, interesting was that it used Kerosine for the dielectric fluid and not water as currently used.

Also with further reference to HSM magazine, they published a sophisticated design around the late 1990's. Contact them to buy the article re-prints although I recall it was subsequently re-published as a book.

[Andre ROUSSEAUParticipant @andrerousseau66124]

The link you WILL want to see! https://cnctar.hobbycnc.hu/ANTAL%20G/szikraforg%E1csol%E1s/EDM%20by%20Robert%20Langlois.pdf

Enjoy!

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