On 01/31/2021 07:22 PM, John Dammeyer wrote:
I found some of the earlier articles in Home Shop Machinist Issue's May/June
1995 and September/October 1995. I do not have part 2 published in
July/August 1995.
However, in the 3rd part Robert Langlois describes the stepper motor operation
in conjunction with the capacitor voltage. His front panel has switches
allowing combinations of 50uFd, 100uFd, 200uFd and 400uFd in parallel.
Note that Robert Langlois is the home shop expert on WIRE
EDM, which is a bit different from
sinker EDM, as the wire is moved fairly rapidly past the
cut. So, the spark generator setup is
quite different.
I met him at a couple NAMES shows in the late 1990's.
Jon
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