[jordan_clark]

I googled and added it up (just out of curiosity) using the BOM, and total cost was ~$88USD (not counting shipping)

Also, the OS is FreeRTOS (Open sourced by AWS/Amazon in '17) if anyone is interested

[naraic0o]

I'm pretty sure FreeRTOS has been open source since its inception in 2003, see posts going back to 2004 at [0].

Amazon forked it, merged their fork with the original project and took over it in 2017. You can read about it here [1].

[0] https://sourceforge.net/p/freertos/news/

[1] https://freertos.org/FAQ_Amazon.html

EDIT: actually, I don't think they fully merged their fork as there's a variant called a:freeRTOS

[moftz]

FreeRTOS was previously GPLv2 with a couple of added clauses (anything linked with FreeRTOS is now GPL too and you can't publish performance metrics without approval). I'd imagine there were a lot of companies not wanting to GPL everything they made with FreeRTOS (i.e. Amazon) so with a new MIT license, anyone can do whatever they want.

[24gttghh]

Plus the... holy crap that 3D printer is only $170?

[closetohome]

Or like $6800 depending on how you value your time.

[umvi]

Or like $400,000+ if you are hiring a team of mechanical, electrical and software engineers to design an make it for you because neither you nor any individual on your team has his entire set of skills.

Or like $1,000,000+ if you are hiring some company to design and build it for you

[jacquesm]

Fortunately for the OP that's not how he thought about this. People who put a value on their time for everything are invariably terrible company for anything that is fun, will teach you something or that is useful to others rather than only immediately to themselves.

[tty2300]

OP obviously enjoys building and showing stuff off. If they valued their time they would be building smart watches instead of mindlessly browsing social media or watching TV.

[jordan_clark]

Very true