Cheap Design DIY 
Cars That Think
AUGUST 20, 2021
It uses an "outrunner" motor designed for electric skateboards. motor designed for electric skateboards for $88 and fashioned a mount for it out of a few pieces of scrap aluminum. Being an open-source design no doubt keeps the price of this hardware down: The controller I bought set me back a mere $85. So I bought an outrunner.
Cars That Think
NOVEMBER 28, 2021
meter-tall Nexø II rocket was powered by a bipropellant engine designed and constructed by the Copenhagen Suborbitals team. 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. Even more important, it came back down in one piece.
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Cars That Think
AUGUST 20, 2021
It uses an "outrunner" motor designed for electric skateboards. motor designed for electric skateboards for $88 and fashioned a mount for it out of a few pieces of scrap aluminum. Being an open-source design no doubt keeps the price of this hardware down: The controller I bought set me back a mere $85. So I bought an outrunner.
Cars That Think
NOVEMBER 23, 2022
Far and away our most popular article in the last five years has been “ Build Your Own Professional-Grade Audio Amp on the Sort of Cheap ” (November 2018). And a follow-up to that article, “ A Web-Enabled, High Quality, DIY Audio Amp ” (March 2022), comes in at No. Are there trends in DIY projects you think we’re missing?
Cars That Think
JULY 30, 2021
It's not hard to turn them on and off with a connected socket adapter of some sort, but as you start to go back more than a few years, things become increasingly designed for direct human interaction rather than for the Internet, with buttons and switches and dials and whatnot. Or, that was the idea, anyway.
Cars That Think
NOVEMBER 30, 2024
During the COVID lockdown of 2020, I started designing a completely open-source tuner that would wring the highest possible performance out of the chip for FM DXers. These modules are cheap—they can generally be found for around US $25. That summer, the first versions based on this design of his appeared on AliExpress.
DIY Electric Car
JUNE 23, 2025
Advanced sealing solutions help, but they’re not cheap. Complex Engineering: Designers must find clever ways to keep the motor compact and light, or risk a clunky driving experience. In-wheel designs? DIY Electric Car Forums posts 552K members 94K Since 2007 A forum community dedicated to DIY electric car owners and enthusiasts.
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