E-bike: Things that went right and wrong

Things that went North This page is a link from Conversion to eBike. Using microswitches for both brake handles for brake lights and engine stop turned out to be a very rigid solution. The batterypack construction, with EPDM isolation and aluminium housing is easy to make and rigid. The Sunkko 787A Hack created possibilities to […]

Welding: Sunkko 787A Hack

This page is a link from Conversion to eBike. The Sunkko spot welder has a bad reputation because of its poor quality. It is also popular because of its price. And last but not least: Expect fuses to fly around your ears, it sucks full 16 Amps (and maybe even a bit more when switching […]

E-bike: PAS Hack

This page is a link from Conversion to eBike. “PAS” means “Pedal Assist Sensor”. It is a rotating ring with magnets when you pedal and a sensor that senses changing magnetic fields. Problem There is not enough space between the sprockets and the frame. Please observe how much the sensor ring is bended between sprockets […]

Tools: Extending a Drill

Extending a drill with a tube is an option I use. HSS drills become weak when heated by a TIG torch. That is the reason you do not want to weld at the border of the tube where the drill slips in. A quick and proper solution is shown here, just slide the drill in […]