Anti-Wobble Anti-Backlash Auto Bed Probe for Prusa i3 (Cheapest)

Outdated-Discontinued

Update1 4/4/2016 :
-Using two endstops connected in series at either sides of the x axis will improve the leveling repeatability. Just flip the part and print for the X-idler side.
-Changing the probe grid points to 2 (4 points placed at the most rigid areas on the bed which are usually above the linear bearings will make z offset measurement more consistent.
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This part is the cheapest and most ef