ninebot es2 v1.5 rear wheel spacer

thingiverse

My es2 v1.5 had very little play in the rear wheel, but it was enough to produce some creaks. The reason is that the wheel can move along its axle when you squeeze the rear fork. To prevent this from happening, we need to install a limiter between the fork and a bearing's inner race. If we ignore it, the aluminum bushing will eventually become deformed due to constant lateral movement in the fork's hole. Revision 1.5 has tighter tolerances than previous ones, so there is no need to make any new metal parts. Plastic spacers are all that's required. Printing Notes: Orient the spacer with the chamfer side facing up. Make sure your printer is properly calibrated - you don't want the spacer to be more than 10mm in height. Installation Instructions: Lube it first. The square side must contact the bearing's race, and then insert the axle into the chamfered side. Everything should spin freely. If not, sand the spacer down a bit. Preferred Material: PETG - something hard and stiff.