Tiny Trak SG90 Servo wobble eliminator

thingiverse

I was able to correct my sg90 servos and noticed that they had some play, causing the wheels on my small trak to wobble. I replaced the wheels with a printable sg90 connector, which eliminated the wobble entirely. I also redesigned the idler wheel so it would properly align the track, eliminating the need for spacers altogether. I tested this upgrade on Canino's VW tiny trak and had great success, but it should work just as well on most other tiny traks. To install the servo wheel, simply press it into place - it's a snug fit, so be careful not to force it. Next, tighten the screw until it securely locks the servo in position, then back off the screw just enough to allow for some movement. With this adjustment, the wobble should disappear completely.