Recent content by Randoms

I would like to buy or build a small hydrogen compressor to fill a little 5L tank after electrolysis (releasing oxygen free to the air, just compress H to 200-300 PSI). All looks fairly doable except for the compressor priced at $20K+. I thought to get it for a small fraction of that price and...

I would like to know what material would be the best choice for this set of requirements: - Non-conductive - Non-magnetic - Very low heat expansion (similar to iron/steel) - Readily available to work on (cut, glue, cnc) so I can buy in the shop in sheets or so - No need for melting or processing...

Heya, I am new to this forum and want to start with a tricky question... There is a cylindrical neodymium magnet, d = 40mm, height = 5 mm, hole in the middle (also round shaped cylindrical) d = 10mm. There is also a pure iron ball d = 12mm. The ball is set on a non-magnetic stand at 500 meters...