Prusa Mendle X ends - low profile

prusaprinters

<p>As my desk space is limited i wanted my Prusa air 2 to take up as little space as possible. It bugged me that the X carriage stepper sticks out so i designed these to allow the motor to sit "behind" the Z rod &amp; Z axis screw.</p> <p>The compromise being that the Nema 17 stepper retaining screws are difficult to access so i have included 2 holes for the bottom 2 screws where the allen key for M3 screws passes through. Can only be used when the bottom LM8UU isn't fitted as well as the top Z nut and backlash spring.</p> <p>While i was at it i have implemented an idea for an adjustable idler pulley so the X drive belt can be leveled with the carriage X rods whether you use a standard 608 or 607 bearing, with or without idler pulley like a GT 2 idler pulley &gt; <a href="https://www.thingiverse.com/thing:45955">http://www.thingiverse.com/thing:45955</a></p> <p>I've seen this kind of system before but cant remember where!</p> <p>I haven't printed or tested these yet but will do so in the coming days.</p> <p>Updates</p> <p>Sept 17&gt; Just updated idler Xend to idlerXend 2a with some minor chamfer additions to aid printing.</p> <p>Added a T2 -40 tooth idler pulley to fit standard 608 bearing</p> <p>Sept 18 &gt; Found a chamfer fault in motor X end ..now updated to rev 2a</p> <p>Problem with 40T idler pulley ..wall thickness between idler teeth and bearing was very thin....added 41 tooth version</p> <p>Sept 20 &gt; Issue with Nema 17 bolt hole spacing in motor x end resolved. STL file updated to rev 2b motor x end</p> <p>Sept 24 &gt; Added Rev 3 Motor &amp; Idler X ends. Lowered the overall height of both the LM8UU containment tube and M8 backlash nut holder &amp; added a chamfered gusset between the two.</p> <p>All comments welcome</p> Category: 3D Printer Parts