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Can This DIY Rocket Program Send an Astronaut to Space?

Cars That Think

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 trickiest part, the double-curved "throat" section that connects the combustion chamber to the exhaust nozzle, requires computer-controlled machining equipment that we don't have.

DIY 144
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This DIY electric parade float chassis could be any vehicle you want it to be

Electrek

The motors, controllers, batteries, and everything else is usually built into a flat deck connected to the wheels, meaning the rest of the vehicle is basically just bolted on top. The engineer in me always thought it’d be fun to have just the bare skateboard, meaning you could go wild with your ideas of what to put on top.

DIY 128
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IoT-ize Your Old Gadgets With a Mechanical Hijacking Device

Cars That Think

Just about every device you own is probably available with Internet connectivity. needs Internet connectivity is up for debate. Connectivity usually comes at a premium, and it also usually involves buying a brand new whatever it is, because new hardware and software and services are required. Or, that was the idea, anyway.

DIY 144
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Programmer won't work with Curtis 1253-8001 but works with 1205M-5601. what am I overlooking

DIY Electric Car

I can connect and read/change config settings fine. But the same cable/software won't connect to the 1253-8001. Any ideas? Hi, I have 2 controllers, I need to get the 1253-8001 working for my conversion build. I created a frankenstein serial cable and it works fine with the 1205M-5601. I'm scratching my head here.

IDEA 130
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Looking for a small motor (or advice)

DIY Electric Car

So directly connecting the leaf motor to the transmission input is a no-go. I'm thinking about the following workarounds: Idea 1: find a narrower motor Are there any motors with a diameter less than 9 inches and capable of 80+ kw output? The TransWarp 7 would physically fit, but it's.

Motoring 130
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Build Your Own Hi-fi Ear Defenders

Cars That Think

Now, after countless versions of wiring things together, and even designing my own audio mixers, I finally have a DIY solution that works within a reasonable budget. My approach was to adapt an idea used in some pass-through systems, placing ambient microphones on the outside of sound-isolating headphones.

Building 142
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Henry Samueli and the Rise of Digital Broadband

Cars That Think

How a DIY radio kit launched Henry Samuelis career Samuelis path toward becoming one of todays key players in digital communications started 33 years ago, when he was a seventh grader. Though he had managed to put it together, he had no idea how it worked. I had no idea what that meant at the time, but, boy, did I learn quick.

Atlanta 73