Y-Axis Rail Rod Mounts with Integrated Leveling

thingiverse

Edit #1 (January 29): The mounting base is reduced from 50mm to 40mm in order to fit the new longer rods (50cm) on the IKEA Lack table. Edit #2 (March 03): The project is completed. Added notes on the bottom of this description. I had linear bearings with horizontal rods but didn't like the amount of movement caused by the tall springs located at the heatbeds' retaining screws. The LM8UU linear bearings' mounts use the original holes of the bogie in order to be attached at the absolute best pοssision to minimize any lever movements. 2 extra holes must be drilled per mount. I'll use teflon spacers between the bogie and the heatbed, nut insert is for standard M3 nut. The design utilizes the original springs, M4 10mm (12mm also compatible) and standard M4 nut are placed on top of the mounts for micro-adjusting the leveling, +/- 2.50mm from the optimum height is possible. The springs will be at 50% of their maximum loading capacity at the optimum rod distance from the table (48.50mm). The purpose of the micro-adjusting is to achieve a state where the two rods will be parallel to each other by eliminating the mounting plane's unevenness. The mounting style of the base is taken from bitbrain's brackets and have 5mm thickness and 4mm holes at every corner. Notes: Start by attaching the mounts only through the original screw-holes on the plate and then pass the rod through, this will alight everything. Next step is to screw the mount in place after adjusting the distance from the main Y-axis aluminum profile, distances must be equally spread (left-right) and equally distanced (front-back)! Now you can drill and bolt the extra holes on the Y-axis bogie. Last optional step is to remove the original 4 mounting wheels.