Gallery, Projects and General > Project Logs
Fixing up an old milling vice
awemawson:
No - Coke has phosphoric acid in it that also acts as a rust converter rather than remover - The iron phosphate formed is attached to the base metal.
Battery charging : I once lost a pair of spectacles and got a face full of sulphuric acid when I took a battery off charge, and the spark ignited the H & O2 in one cell, blowing the top clean off all over my face. Not pleasant so I'm a bit sensitive about explosive gas mixtures !!!!!!
Pete.:
Same thing happened to my step-brother. he removed the charger clips without turning off the charger and the top blew off the battery.
vtsteam:
--- Quote from: awemawson on April 16, 2013, 11:45:04 AM ---No - Coke has phosphoric acid in it that also acts as a rust converter rather than remover - The iron phosphate formed is attached to the base metal.
Battery charging : I once lost a pair of spectacles and got a face full of sulphuric acid when I took a battery off charge, and the spark ignited the H & O2 in one cell, blowing the top clean off all over my face. Not pleasant so I'm a bit sensitive about explosive gas mixtures !!!!!!
--- End quote ---
"learned that one when I was 19 the hard way" <---- ahem, same here -- luckily I was near a sink in the garage I was working in. It was on the other side of a jeep, which I apparently leaped over entirely to get to water, according to spectators. That was a commercial charger running at 40 amps.
Important to turn a charger off before removing battery clamps. A wait doesn't hurt either. Even outdoors.
vtsteam:
I decided to fill the divots with metal filled epoxy putty -- JB Stick. I've had good luck with it on cast iron in the past. It cures very fast -- about 2 minutes working time after kneading it together. I use rubber gloves and it's important to wet them with water, or this stuff will pull them off. Also you can't easily putty knife it. Best bet is just press it in place.
vtsteam:
After it had cured for a half hour, I filed the epoxy down with a coarse file. Then I hit the ways with some petroleum jelly, and a few other areas I wanted to mask as well. The drill divots on the ways looked pretty good after filling with epoxy and oiling. The bare epoxy can be seen in some cuts on top of the vice slide.
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