Yeehaw 3D Printer Hacking

The Yeehaw 3D Printer was an attempt at crowdfunding a 3d printer for kids.
The company folded quickly and left an army of these printers without an app, parts or support.
Let's take a look under the covers. Check out my other channel @TakeItApartChannel

[@justme5384]

You will own nothing and be happy. This is the reason I'm never buying anything that needs a cloud. Unless I can selfhost that cloud on my VM

[@H4zuZazu]

the little chip, is probably a anti-paralel diode to form a "crowbar circuit". if your polarity isnt right it shorts the input, and if the psu is stronger it will turn into a constant short.

[@BetterBiomedChannel]

That's absolutely correct! I removed the shorted diode and the DC input card is fine now.

[@keithsandulak2292]

I saw you repair a Sony DR80MD and am hopeful have a repair video for an error message I cannot work around. It blinks I have a paper or ink roll problem. Changing paper roll and ink rolls does nothing and same message persists. Any help would be greatly appreciated. Your explanations are great. Thanks

[@BetterBiomedChannel]

Try running the printer without a cassette. Make sure you change the paper AND the print roll

[@keithsandulak2292]

Thank you so much for your reply. I'll try immediately Fingers crossed👌

[@keithsandulak2292]

@@BetterBiomedChannel What do you mean 'Cassette' The ink rolls?

[@BetterBiomedChannel]

The cassette is the print paper and ink casette.

[@keithsandulak2292]

@@BetterBiomedChannel thanks for your help. I followed all your suggestions plus tightened the color rolls and restarted. Everything worked. No error messages, thanks a million