Tiny anvil knob for forge - video

[nova_robotics]

A word of caution. Using diodes in parallel to increase the current rating does not increase the rating in proportion to the number of diodes.
Diodes are not born equal and when connected in parallel some will do the lion's share of the work and some will just loaf along. So the one doing most work will get overloaded and fail, that will put more load onto the remaining ones and so the one that is now most heavily loaded will fail quickly and the effect will quickly cascade through the whole diode pack.

Absolutely, but it's even worse than that. Silicone diodes have a negative temperature coefficient, so the impedance decreases as the temperature increases. So the second one heats up even a tiny little bit, it'll pull more amps, which will cause it to heat up, which will cause it to pull more amps.... and you get thermal runaway and let the smoke out. MOSFETs don't have the same problem with negative temperature coefficient. They (most, all?) actually have a positive temperature coefficient, so the resistance increases as temperature increases. If diodes did this, when in parallel they would naturally balance themselves out and everything would be great.

So why am I talking about MOSFETs? Because if you reverse bias them, or wire them backwards, you can use the intrinsic or body diode of the MOSFET as a diode, but one with a positive temperature coefficient. Anyway, a potential solution to the problem.