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| Titivating a Wire EDM Machine |
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| lordedmond:
Andrew Now you know why they say water is the universal solvent ,deionised and dis tiled are the most active both will try to leach back the minerals removed from them. That why you should never drink distileled water it will leach back from your gut Good luck with this major project We have a edm machine at the club that uses shaped electrodes and paraffin as the electrolyte/flushing liquid. Stuart |
| awemawson:
Thanks for the good wishes. Perhaps yours is a bit like this one ? http://madmodder.net/index.php/topic,9319.0.html |
| awemawson:
The Tungsten Carbide contact electrodes have just been delivered. I didn't go with the eBay ones, as although they were somewhat cheaper they weren't quite the same size as the originals. They would have worked fine I'm sure. However I reasoned that if I could source ones to the original spec at least in the future replacements would be available. Worth noting that these contacts do not revolve - the wire slides over them and eventually wears a groove, whereupon you slacken their mount, turn a fresh face to the wire, and tighten up. I've just taken a tentative look at the bucket of citric acid - quite a bit of progress but it needs more time, after all it's only had barely an hour and a half so far. At least the heads of the countersink cap screws that retain the blue insulator can now be distinguished from the rest of the mess :thumbup: |
| lordedmond:
Yep Andrew very simler not used it myself it came out of Ratclffe on Soar PS :D Stuart |
| awemawson:
I decided that it was worth soaking the entire arm in citric acid, so I transferred it to a tote box that was almost big enough (!) - it'll need at least an over night soak if not a few days |
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