ANET A8 Y frame "exoskeleton"

cults3d

Based on the brilliant design of Matsekberg, here are some improvments: - a full Y-axis motor support including the left part, diagonal stiffeners and an enlarged right part that can be attached inside the cylindric hole of the ANET back plate. (All this to improve rigidity) - the Y axis motor support allows to add an external back plate carbon stiffener that will make a very robust frame (please see also my exokeleton https://www.thingiverse.com/thing:2430113). Even if it remains optional (it will do great job without),I think this is a must. if you do not install this carbon rod, there might remain some flexion of the back plate when applying pressure on the belt. The right rod is pushing the support and the back plate still moves. And during fast prints you can feel vibrations induced by the motor and the Y carriage at the center of the back plate... Install the carbon rod and it becomes RIGID !!!! - the front plate adaptor does not see any effort, I've simplified it removing the L bracket. The front support for the rods has an open hole so that everything can be assembled without dismantling the ANET's frame. - the belt tensionner is more or less the same, but as for the other parts it is designed with openscad to be fully parametric ! Please note that the motor mount piece (the big one) is designed for an anet A8 of new generation bought in july 2017 I cannot promize it will fit the other models... The square and cylindric supports fit exactly their associated holes in the ANET's back part. I did not need any sanding or filing, Only remove the little plots left by the supports. Thank you again Matsekberg for this very clever idea for sure the best mod for Y belt! EDIT (170904) : There was a mistake in an equation of the Y-frame piece which lead to non parallel rods by 8mm. I've fixed this in this new release. Thanks to Sinobi for having pointed that out. EDIT (180113) : Under High speed the 6mm threaded rods might vibrate in the front support. I redesigned the whole front support adding 2 threaded M6 nuts that fit perfectly inside the front support holes.