On Mar 22, 2024, at 5:20 PM, Ralph Hulslander <rhulslander@...> wrote:

I'd like to see some pictures of these resistance soldering machines. I am really interested.

Ralph

On Fri, Mar 22, 2024 at 7:29?PM Charles Daldry <horologer1@...> wrote:

I bought a resistance soldering machine powerful enough to do gold soldering for about $35 from an Ebay seller and it was less than 20 miles from my house.?? I can solder brass tabs onto a clock bezel fast enough to not discolor the outer surface of the part.?? If you back off the carbon electrode until it arcs, it will burn a hole through a hacksaw blade in seconds.?? Quick way to make 8" long blades for a tiny vintage power hacksaw.

On 3/20/24 09:09, Aaron Woods wrote:

If soldering is an option strengthwise, but the issue is heat, then you might want to look into resistance soldering. It runs a current through the metal and the heat is very concentrated to just the point being soldered. It is popular with model railroaders working with small delicate pieces. Not cheap by soldering standards but cheap compared to welders. If you look around there are also some DIY articles.