Linear Bushings, IGUS Style - Parametric with Solidworks 2014 source

thingiverse

This is parametric using simple equations found in Solidworks 2014 source, with wall thickness held constant at 1.5mm thick. The size of the nozzle determines how many teeth can be printed, with a 0.5mm nozzle able to print 18 or possibly 19 teeth before gaps form between them. A 0.35mm nozzle should allow for 20 or 21 teeth, depending on printer calibration, also based on the 8.1mm inside diameter LM8UU version. To meet needs of users who may have trouble with 21 and/or 18 tooth versions, I added a 16 tooth version. Insert printed bearings onto rods and roll them up and down to ensure smooth movement, remembering to lubricate them since the lubricant stays between teeth. Print at a slow pace with 0 infill, vertical shells of (int((1.5/nozzle size)+0.5)), and top/bottom horizontal shells of 5.