Micromake C1 Y-Axis linear guide mod with belt tensioner

thingiverse

This is a mod to replace the wheels carriage of the Y-axis of a Micromake C1 with a MGN linear guide. These guides can be bought cheaply on eBay or Aliexpress. The mod improves the stability of the bed and, at least in my case, improves the quality of the print. It also includes a tensioner mechanism for the belt. The mod has been designed to fit in the standard acrylic parts delivered with the original Micromake kit. I know that some parts included in the delivered kits have evolved over time (some parts in my kit look a little different than the one shown in the official assembly videos). So if my mod doesn't fit perfectly on your machine, don't hesitate to contact me - I may be able to create a variant for you. I have no idea if the mod will fit on a metal parts version of the printer. Parts are foreseen to be printed with the orientation as they appear on Thingiviews. No support is needed. The included PDF is a 3D PDF, so you can move the assembly view if you want to better see how it's constructed. I have also machined a new version of the bed support plate for my machine (8mm black MDF). This is not mandatory to be able to use my mod. You can reuse the standard plate delivered with your kit and drill in it the holes for the MGN carriage. The following parts are needed: * For the rear holder: + 1x Printed rear holder + 2x F623ZZ bearings + 1x M3x20 screw + 1x M3 nut + 2x M3 washers (standard DIN125 washer, i.e. dia 7mm, thickness 0.5mm) * For the front slider: Tensioner Screw: - 1x Printed knob - 1x M4x25 screw - 2x M4 nuts - 1x M4 washer Moving roller assembly: - 1x Printed front slider - 2x F623ZZ bearings - 1x M3x18 screw - 1x M3 nut - 6x M3 washers * For the front holder fixed roller assembly: + 1x Printed front holder + 2x F623ZZ bearings + 1x M3x20 screw + 1x M3 nut + 2x M3 washers * For the linear guide: + 1x MGN15H carriage with 300mm rail + 2x M3x10 screws and T-nuts (at least 2, for fixing the rail to the profile) + 4x M3xXX screws + 1x M3x30 screw + 1x M3 nut * For each hardstop block (not mandatory, but will prevent derailing if the firmware tries to move the bed too far): + 1x Printed hardstop block + 1x M3x10 screw + 1x M3 T-nut * If you want to use the same belt clamps that I'm using, for each clamp: + 1x Printed belt clamp + 2x M4 screws (size depending on your bed holder thickness) + 2x M4 nuts