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  1. GlennA

    Using brass bar instead of wire?

    I need to connect some batteries in series and require 2/0 wire, but I'm wondering if I could use solid brass (or aluminum?) stock because it's only a 6" straight shot. It would be easier and I assume cheaper because I would avoid the need for terminal lugs the cable is expensive too. The...
  2. GlennA

    Am I work hardening my 4130 tubing?

    Thanks for the confirmation. Can you suggest a heat treatment process? I heating equipment don't have access to an annealing oven large enough.
  3. GlennA

    Am I work hardening my 4130 tubing?

    I am experimenting with reducing the diameter on the end of thin walled (.028") 4130N tubing (5/8" OD). I'm using a technique like is used in metal spinning, simply applying pressure against the outside of the tube while it turns slowly on the lathe. The result is good (I can get the end...
  4. GlennA

    Flamability ratings for plastic caster

    Well sure, but how about something that rolls a little better on a gritty concrete floor? I'm not looking for fireproof, just more resistent than the polypropylene is.
  5. GlennA

    Flamability ratings for plastic caster

    Recently, a polypropelene caster on a cart in my shop caught fire after several minutes of contact with a hot piece of metal from a plasma cutter. We need to replace the caster with a non-flamable material. What material, typically used in casters, is flame-resistant? Also, can anyone recommend...

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