AM8 340 - 364 MM rail extension t-slot

thingiverse

If you're like me, buying everything I needed for the AM8 before discovering it's about 24 MM short in the Y axis was a costly mistake. The extrusions should be 364 MM long, not 340 MM. I found this out courtesy of Ranita's post: https://www.thingiverse.com/thing:2462104 Not wanting to buy new extrusions and also not wanting a shorter Y axis, I thought maybe I could design a solution that would work with the existing corner brackets used in the AM8. The 24 MM t-slot extensions can be installed in either the front or back of the AM8. This modification requires using an M5x.8 thread tap to tap all four holes in the 313 MM extrusion. To complete this project, you'll need 12 M5 x 10 mm button head screws and 8 t-slot square nuts. The bracket will overlap the existing 340 MM rail, the 24 MM extension, and the 313 MM front/back rail. Four screws will thread into the previously tapped holes, while the rest use t-slot square nuts. To get the bracket to slide in comfortably, a little bit of sanding in the corner was necessary. To remove any extra stress on the 3D printed extension, I added two extra rubber feet on the 340 MM rail. Lastly, you'll need to 3D print the front y rod holders created by Ranita: https://www.thingiverse.com/thing:2462104 and follow the steps to move the 440 vertical rails forward.