A DIY E-bike Conversion on the Cheap
Cars That Think
AUGUST 20, 2021
Terrafirma Technology , a company started by an engineer named Michael House who has gone into business supplying 3D-printed adapters to people who want to repurpose lithium-ion power-tool batteries. In 2009, I wrote in these pages about my efforts to. Fast forward a dozen years. If anything, it's gone up. So I bought an outrunner.
Let's personalize your content