Cheap Companies Connect DIY 
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. The speed controller is connected to the motor and battery in the usual fashion, with an automotive-type blade fuse in line for safety.
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. The speed controller is connected to the motor and battery in the usual fashion, with an automotive-type blade fuse in line for safety.
Green Car Congress
FEBRUARY 14, 2020
Due to a sudden company relocation, my wife had no other choice but to drive to her office. I knew I wanted something for her that was cheap to maintain, had a reliable automatic transmission, came with cruise control, AC. It is something very cheap to fix and to inspect. It was time to buy our first car.
Cars That Think
NOVEMBER 28, 2021
That successful mission in August 2018 was a huge step toward our goal of sending an amateur astronaut to the edge of space aboard one of our DIY rockets. The Nexø II's engine, which we called the BPM5, was one of the few components we hadn't machined entirely in our workshop; a Danish company made the most complicated engine parts.
Cars That Think
OCTOBER 25, 2022
The biggest leap forward happened in 2012 when it was discovered that USB stick TV tuners using the RTL2832U demodulator chip could be tapped to make very cheap but effective SDR receivers. Building off the demand stimulated by this activity, a number of manufacturers have started making premium, but still relatively cheap, SDRs.
Cars That Think
MAY 7, 2022
If I could just connect the HVAC system to my iPhone, I could control it from anywhere. But the technology that I needed to make it happen—reliable low-cost communications, cheap screens and processors—didn’t exist yet. The big companies weren’t going to do it. It connected to your phone. Tom Crabtree. But it worked.
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