Park Tool TS-2 Hub Spacing Adjustment Knob

thingiverse

Update 02/25/2019: I made significant changes to the knob's design, increasing its length and diameter, and adding more threads after the original one broke due to excessive use. To avoid damage, ensure that the knob's threads do not bottom out with the male threads. The updated file is "ParkTool_TS-2_Knob.stl". Original Post 09/05/2018: Unfortunately, a sales representative accidentally broke the original knob. To repair it, use vice grips to grasp the threaded rod where the stock knob is attached. Remove both the knob and the 19mm locknut, then clean the threads thoroughly before reinstalling both parts. Initially, I didn't apply thread locker to the printed knob, but after four months of use, a boosted thru axle caused the locked nut to loosen itself when the truing stands' legs were fully extended. To prevent this, I added some Loctite and it's worked perfectly since then. To ensure a secure installation, apply a generous amount of thread lock to the printed knob (spoke prep can also be used as an alternative if needed). Print the knob with its large side facing down; this is self-explanatory.