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I've done another iteration of the big 3D printer, if you haven't seen the previous one, you can check it out here:

https://youtu.be/albFKmWW4nA (part2)
https://youtu.be/VzjJFon4c8E (part1)

If you want to know more about the release of the printer files you can go here:

https://ivanmiranda.com/pages/big-3d-printer-from-scratch-new-version

After printing around 2000 hours working on a secret project I've found a few things wrong with the previous design and I decided to do another iteration to improve the design. Amongst the things I wanted to improve:

Reliability of the bed moving mechanism, wheels on the sides would work great for a small bed but this one was way too big an heavy so I switched to top rolling wheels.

Weight of the bed: The bed was too heavy so I designed a new bed levelling system based on eccentric nuts that removes the need for a second platform because this one levels straight on…