For the SDX V3 Super XDrive where is the resistor that adjusts the current? I don’t see it in the DTR’s Laser Shop page. Where did the seller DTR specify a 1kHz PWM frequency? In a personal message? DTR’s page https://sites.google.com/site/dtrlpf/home/flexdrives/x-drive specifies 5KHz.
Would be nice if they supplied schematics for these things. It’s not nice dealing with a black box.