Anet A8 offset y belt holder clamp, leftward and vertical correction

thingiverse

This is a robust Y-belt clamp designed specifically for the Anet A8, taking into account the vertical and leftward offset of the Y belt on this 3D printer model. Update: As of September 14, 2018, I've made some key improvements to this design. The model is now 2 mm narrower, making it easier to accommodate rear frame braces and use a more commonly available screw. Additionally, I've included better pictures and updated instructions to help you assemble this print successfully. After noticing that several of my large prints were coming out shorter than expected by about a millimeter, I decided to investigate the issue further. Upon researching online, I discovered that the Anet A8 Y-belt is actually slightly offset to the left. This was evident in the mounting position of the Y stepper motor and the Y-idler on the front acrylic piece. In fact, you should check that your Y-idler is not installed backwards - it should be closer to the left side. The stock belt holders also fail to keep the belt parallel to itself and the rails, resulting in a slight reduction in print movement along the Y-axis. While there are many Y-belt holders available that can correct the spacing of the belt, I couldn't find any that addressed both issues simultaneously. The main challenge was finding a way to mount the belt partially over where the mounting screw needs to be. To address these problems and make some structural improvements, I came up with this design. It has been working great for me so far, and I'm confident it will help you achieve better print quality as well. This print uses the following components: * 2x M3 Phillips screws (18mm long, with a 5mm round head) - I had a few extra from the Anet A8 kit * 2x M3 nuts * 4x M4 screws (the same ones used for the stock Y-belt clamp) The print consists of three main parts: 1. The belt housing: This holds the belt in place, with the belt offset to the left. 2. The first bracket: This component ends up on the right side of the belt once assembled. 3. The second bracket: This component ends up on the left side of the belt once assembled. To print these parts successfully, you will need to use supports and print them in the default orientation specified in the .STL files. For assembly instructions, please refer to Post-Printing. If you want to modify this design or make any adjustments, I've included the .SCAD file for your convenience. However, keep in mind that using longer screws may cause issues with your rear frame brace.