superUnknown
Aluminum
- Joined
- Jun 9, 2013
- Location
- Canada
I built a little 30kHz 60VDC 10amp power source and am having success making millions of sparks.
I've studied the Machinery's Handbook and poked around the internets. I haven't had any success with metalic electrodes, but graphite works, barely. Maintaining spark gap is next on the list, then de-ionized water as dielectric.
The frequency and current are adjustable, and the spark gap will soon be. On my first attempt cutting a razor blade, it took about 45 minutes using air as the dielectric. Obviously having re-cast trouble, so I'm hopping switching to water will be a huge leap. I'm going to the drug store to get de-ionized water and have a submersible pump to do the flushing. Nothing for filtering just yet.
Since I've never seen an EDM in the flesh, I'm thinking there are lots and lots of little traps that I'm missing. I'd appreciate you pointing out any you see, bearing in mind this is just a little hobby toy.
Thank you!
I've studied the Machinery's Handbook and poked around the internets. I haven't had any success with metalic electrodes, but graphite works, barely. Maintaining spark gap is next on the list, then de-ionized water as dielectric.
The frequency and current are adjustable, and the spark gap will soon be. On my first attempt cutting a razor blade, it took about 45 minutes using air as the dielectric. Obviously having re-cast trouble, so I'm hopping switching to water will be a huge leap. I'm going to the drug store to get de-ionized water and have a submersible pump to do the flushing. Nothing for filtering just yet.
Since I've never seen an EDM in the flesh, I'm thinking there are lots and lots of little traps that I'm missing. I'd appreciate you pointing out any you see, bearing in mind this is just a little hobby toy.
Thank you!