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firesteelrain | on: $96 3D-printed rocket that recalculates its mid-air trajectory using a $5 sensor
Even if the correct sensor could be chosen (whatever it is), unlikely is attainable by consumers and the technology would definitely be export controlled in the US.
kotaKat | parent | next
You'd be AMAZED what you can find on eBay.

I saw this pop up alongside its video thumbnail and nearly shit myself watching it and going "damn, that looks exactly like what's on those RU/UA drones going at each other"... https://www.ebay.com/itm/197224214645

"HS AI Vision Cube For Ultra-long-range Target Recognition tracking & Thermal" for as low as $175. I am feeling the potential ITAR violations straight through my screen.

bruckie | root | parent | next
The funny thing is, at least as I understand it, ITAR only applies to things produced in the United States. As example, you can't buy very good FLIR IR cameras in the United States without a lot of paperwork, but you can trivially buy much better (higher resolution, faster frame rate) and cheaper IR cameras that are produced in China.
rdtsc | root | parent | next
> I am feeling the potential ITAR violations straight through my screen

And possibly landing on all kinds of watch lists.

I wouldn’t be surprised if some of the sellers there are just honeypots.

A name like “Ultra-long-range Target Recognition tracking” just screams “Hey, FBI, please come visit me and ask what I am building in the basement”

waffleiron | root | parent
Are items made, located in, and sold from China covered by ITAR?
torginus | parent
I think MEMS gyroscopes and accelerometers used in consumer drones should be just about good enough to measure orientation and acceleration, and those are cheap and easy to get.

You could integrate acceleration to get speed - the flight is short enough to make compounding errors easy to ignore.

I think thanks to drones and RC hobbyists, there's a generally nice body of knowledge on how to get good enough data from consumer hardware to keep things flying.

obidee2 | root | parent | next
> You could integrate acceleration to get speed - the flight is short enough to make compounding errors easy to ignore.

‘Easy to ignore’ is not a term I would use here, especially given the motion environment of a rocket. It seems like it might be beginning to be borderline possible.

the__alchemist | root | parent
> You could integrate acceleration to get speed - the flight is short enough to make compounding errors easy to ignore.

False, given how noisy MEMS IMUs are, and the accuracy required. Even Ring Laser Gyros drift quickly.