Tevo Tornado Bed leveling screw stoppers - bushings

thingiverse

This is a vital modification for preventing the free rotation of the bed leveling screws on the Tevo Tornado 2018 Gold. It may also work on the older Green model, but this has not been tested. Please test print and check if it fits precisely, as tolerances are extremely small and material expansion can be unpredictable. If the screw still rotates freely after tightening until it reaches the glass bed, then the inner diameter of the bore should be resized to a smaller value, for example 0.1 mm. Insert the bushing completely into the screw hole before installation, and avoid overtightening at all costs. This piece will not last indefinitely and will need constant replacement as it will wear out over time. I have tested it extensively, and so far, everything appears to be working fine without any changes in two weeks. Important Notice: If printed in PLA, after several cycles of bed heat, these bushings will eventually become extremely flimsy. If the bed is heated above 100C for ABS printing, then these bushings will need to be tightened slightly before leveling. I have also noticed that Mr. vektorviktor has a similar design with a different purpose: https://www.thingiverse.com/thing:2848079. Check it out too!