Creality Ender-4 Linear Raills Y-axis Upgrade

thingiverse

Human: Issue: V-wheels on Y-carriages are causing a multitude of problems: they're tearing off; If loose, they cause ovals instead of rings, resulting in wobbling and print artifacts. Solution: Replace V-wheels on the Y-axis with MGN12x300mm linear rails. The upgrade is relatively straightforward, utilizing existing mounting plates to their fullest extent. All that's required is printing four 9mm thick spacers: two for front idle pulleys, and two for X- and Y-motors to elevate the belt to the level defined by Y-carriages sitting atop linear rail carriages. Extra benefits: * Less friction from linear rails compared to V-wheels loads motors less; less torque is required to move X- and Y-axes as well as a HotEnd * The overall moving construction, consisting of Y-carriages, X-gantry with HotEnd, weighs 72g less - this enables the use of higher print speeds Overall budget: $35 USD BoQ (disclaimer: reference links; so, if you do mind, please, don't click...): * 2 x MGN12Hx300mm linear rail: http://got.by/3z1lk5 (2pcs) * 24 x M3x8 bolt: http://got.by/3z1mlv (50pcs) * 8 x M3x10 bolt: to mount carriages - same links as above * 24 x M3 2020 Sliding T-nut: http://got.by/3z1ot7 (50pcs) * Your time for assembling - priceless Auxiliary Tools: * Y-carriages drilling conductor - helps drill precise mounting holes in the Y-carriages * Rail_Center_Tool - aids in centering linear rail on top of 2020 frame Next Step: replace V-wheels on the X-axis - to be continued... Print settings: * Any type of plastic * 4 layers for walls and top/bottom * Infill 20-25%, pattern: Triangles, Hexagon or Gyroid Note: Files for Rail_Limit and Rail_Center_Tool were borrowed from: https://www.thingiverse.com/thing:2170087