Anet A8 offset y belt holder clamp, leftward and vertical correction
Description
This is a robust y-belt clamp for the Anet A8 that accounts for the vertical and leftward offset of the y belt on the Anet A8. Update 9/14/2018: Made the model 2 mm narrower to better accommodate for rear frame braces, as well as to use a more commonly available screw. Better pictures and updated instructions. After having a few large prints end up a millimeter shorter than expected, I sought to resolve this. I recently noticed, then confirmed online, that the Anet A8 y-belt is actually slightly offset to the left. This is evident in the mounting position of of the y stepper motor, as well as the mounting position of the y-idler on the front acrylic piece (you should check that you don't have yours backwards, it should be closer to the left side). The stock belt holders also don't hold the belt parallel to itself and the rails. Both these issues result in the print moving slightly less in the y-axis than it should. There are quite a few y-belt holders that fix the spacing of the belt to make it parallel, however I couldn't find anything out there that corrected for the belt's leftward offset. Part of what made this challenging is that the belt needs to mount partially over where the mounting screw needs to be. So I came up with this to address both issues, and made a few structural improvements on top; it's working great for me. This print uses: 2x m3 phillips screws, 18mm, 5mm round head - I had a few extra from the Anet A8 kit 2x m3 nuts 4x m4 screws (the same ones for the stock y-belt clamp) This print consists of 3 parts: The belt housing - holds the belt, oriented so the belt is offset to the left The first bracket - ends up on the right side of the belt once assembled The second bracket - ends up on the left side of the belt once assembled I printed these in the default orientation of the .stl files, and you will need to use supports. See Post-Printing for assembly instructions :) Included .scad design files if you want to tweak with them. This mod did not have any issues with my rear frame brace, but if you use longer screws you might. *If your y-carriage is upside-down, this print won't give you the right vertical spacing of the belt to run parallel.
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