spinningmagnets wrote: ↑Oct 26 2019 4:12am
I'm sure anyone here can order the welder electrodes from kWeld and try them on a JP welder. I am certain they would work fine.
Nice to see mod is a reasonable suggestion but in reality for many locations open source parts either need to be sourced locally or from China:

- kWeldElectrodeSystemLooseParts.png (15.11 KiB) Viewed 4299 times
I think something more like below (maybe solder cable instead of crimp and/or a pin instead of thread) is more the go for home hackers (assuming focused on good entry-level performance):
tatus1969 wrote: ↑Aug 13 2017 7:06am
... The new system only requires crimping the cable to a brass tube, thread-tapping tube and copper electrode, and heat shrinking an isolation. This also makes electrode replacement easier than ever before.

Right click to open in new tab
* 1m x AWG8 (8.4sqmm, 3.3mm) silicon high flex wire
* 2 x M6 (10sqmm) ring cable shoe
* ??mm x ??mm copper tube for electrode holders
* ??mm x ??mm copper rod for electrode tips (AWG8 suggesting 3mm and rounded tips noted)
* ??mm x ??mm plastic tube as electrode holder handles for thermal resistance (maybe pvc or polyethylene pipe)
(electrode tips and holders could be same piece using 5mm or 6mm solid copper rod)
I wonder if some of the heat issues could be reduced with AWG6 cable which might suit a 4mm electrode rod and 6mm OD copper tube with 4.5mm ID.
Maybe I'm over-thinking the cable-tip joiner:

- TerminalStrip-Specs.jpg (14.61 KiB) Viewed 4299 times
Hey - just putting it out there for those with tried and tested experience. No idea if it will over heat or blow mosfets etc.
Edit: I'm going to try this basic Electrode System Hack with non-replaceable tips
- 2 x 500mm AWG8 wire, maybe silicon, with M6 tinned copper lugs on one end
- 2 x 70 mm of 5mm copper rod, maybe C14500 (tellurium copper) if available as it seems more workable
* Turn rod in drill and form tip with (file, grinder, pencil sharpener) tools leaving a 1mm blunt rounded end
* Swap rod end in drill and turn holding a felt tip pen to end to roughly mark centre, remove and hit with centre punch, drill (1/8" ??) 7mm deep hole to match wire
* Strip 7mm of AWG8 wire (8mm if soldering), feed into probe and crimp or heat probe with torch and feed solder into join
* Cover probe and part of cable with some sort of plastic handle (approx 2mm thick) then heat to shrink supporting wire join and as thermal barrier
Comments welcome!