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There’s also various upgrade kits from the 3 to 3.5, 3.9 and 4.

Here is the full kit https://www.prusa3d.com/product/original-prusa-i3-mk3-s-to-m...

Sadly at $579 that is almost the price of a full printer at $799.

May as well buy the full printer and sell the old one :(

The 3.5 upgrade looks compelling at 250 for the input shaping and pressure advance. Native Wi-Fi is a mild bonus if you already have an octopi setup. For the others, I agree. That’s a good chunk of the way to the price of a brand new P1P, which comes assembled.

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