Smiley Face Hubcap for Mickey Thompson Wheels

prusaprinters

Replacement for the Mickey Thompson MM-245 wheel hubcaps.Unfortunately, I lost the original description of this that had a parts list when YouMagine did their recent redesign.  Basically, for each hubcap, you will need:Two very good quality 608 bearings.  I used these: https://www.amazon.com/gp/product/B08ZN94S5L/Two mounting bolts, ideally stainless, which I believe were M8x20 button headsOne long bolt to go through the bearings and thread into the cap.  I believe this was an M8x40 button head, again stainlessSome washers to space out the cap from the outer bearingSome nuts to press into the back of the cap so it stays upright Instructions for assembly:Print both parts.  Use something weather-resistant like ASA.Press nuts into the indentations on the back of the smiley cap.  Try to get them as flush with the surface as you can so they don't stick out and drag on the base.Press bearings into indentations in the front and back of the base.  Best way I found to get these to seat was to mostly press them in by hand and then thread a long bolt through from one side and a nut from the other and use the bolt to press in the bearings.  By doing this, you know they will be axially aligned correctly.Thread long bolt from inside of base through both bearings, place washers on the bolt on the outer surface of the outer bearing, and then thread the smiley face cap onto the bolt.  You may need more or less washers depending on whether you have any warping on the face cap - basically just don't let anything drag on the base part when it turns.Tighten down the smiley face cap until you get a little bit of drag on the base, and then back it off until it spins freely. Materials:Use ASA for this, or at least something UV-resistant.  I printed mine from 3DXTech ASA - black for the base, yellow for the smiley face, and then colored in the design part of the smiley face cap with a Sharpie pen.  It has held up quite well. Originally posted at: https://www.youmagine.com/designs/smiley-face-hubcap-for-mickey-thompson-wheels