Linear Rail ACTUATOR（Mgn12 and Nema 17）

thingiverse

# 基于2020铝型材和mgn12H滑块的的标准化Nema17电机模组。 我很喜欢Openbuilds的一些模组，像是V-slot Nema17。 但是这些V轮让我不太满意，会有轻微的晃动。 而且往往使用32齿的同步轮，打印机往往使用16齿或者20齿的GT同步轮。 做了一些打印机以后，我有有一些剩余的mgn12导轨，但是搜索不到模块化的导轨设计。 未来可能做一些1m或者更长的打印机，我需要模块化的方案进行快速设计。 所以我设计了这个方案，采用了10mm宽的2GT同步带。当然可以很简单的切换成6mm宽的同步带。 包含了一个简单的皮带张紧器，整个运动部分都在铝型材的同一侧，可以方便的安装到任何框架的表面。 并且设计了和滑块配套的铝材固定装置，便于多个模块叠加使用。 # NEMA 17 motor ACTUATOR based on 2020 aluminum and MGN12H linear rail I really liked the OpenBuilds modules, such as V-slot Nema17. But I'm not too happy with these V-wheels, they wobble slightly. In addition, 32-tooth synchronization wheels are often used, and printers often use 16-tooth or 20-tooth GT synchronization wheels. After making some printers, I have some leftover MGN12 guides, but I can't find the modular guide design. In the future, I may make some 1M or longer printers, so I need a modular solution for rapid design. So I designed this scheme, using a 10mm wide 2GT timing belt.Of course, you can easily switch to a 6mm wide sync belt. Contains a simple belt tensioner with the entire moving section on the same side of the aluminum profile for easy mounting to any surface of the frame. And the design and the sliding block matching aluminum fixed device, easy to use multiple modules superposition. 螺丝： M5x25（惰轮） M5x8（铝材固定） M4x10（滑块和铝材支撑固定） M4x20 （滑块上下两部分固定） M3x8（mgn12h固定） Screw: M5x25 (idler wheel) M5x8 (aluminum fixed) M4x10 (slider and aluminum support fixed) M4x20 (upper and lower parts of the slider are fixed) M3x8 (MGN12H fixed) Printing： 随便了，取决于你想要的强度。 如果是写字机，打印机刚性要求不高的，2mm壁厚足矣。 It doesn't matter. It depends on the intensity you want. If it is a writing machine, the printer rigid requirements are not high, 2mm wall thickness is enough. Infill：18% Walls/top/bottom ： At least 1.2mm