Epson ET-2750 or ET-4740 Duplexer Gear
thingiverse
Gear for Epson ET-2750 or ET-4750 Inkjet printer. It goes in the duplexer which pulls out the back, which are prone to breaking. Remade this part from scratch to address a couple things: 1. Filled hole in middle to add strength. There is a lot of tortion on this part in a printer. (which is why the original fails) 2. The cross in the hole has different widths for the X and Y axis, so now it slides in and clips without any post processing needed. 3. Slight change in outer diameter to match original and slight change in gear tooth to match original. 4. Higher polygon count to make shaft more round. 5. I did notice a slicing error with the sgruby's on 2 opposite teeth when using prusa slicer...not sure why. Added solidworks file, STEP and STL so you can modify if you like.
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