Cross Roller Bearing for Slew Joint or Turntable
Description
This is a cross roller bearing useful for a slew joint or a turntable. The outer race is a single piece. It now has an optional pulley for a GT2-6 timing belt. Note that the code for the pulley is a pretty bad hack. You will need to alter settings in the timing2.scad file if you want to make any changes to the pulley. It is not coded as a proper module that could be called from the main file slew10.scad. The inner race is split into an upper and lower section so the bearing can be assembled. These two parts are threaded together. So by turning the thread you can set the tension on the rollers. There are two sets of holes that allow locking the thread position by inserting a bit of raw 1.75 mm fiber into the holes. The carrier that keeps the rollers separated is a bit flimsy, it can be difficult to get a good print. Be sure your first layer is really good on that part. The larger diameter bearings tend to work better. This one (150 mm OD) is considerably smoother than the smaller Slew 8 version (70 mm OD). Added options for connecting tabs on the inner and outer ring, facing either in or out. This version updates thing:4529219 (Slew 8, Cross Roller Bearing).
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