The upper and lower body pieces require minor support.
Print 4 of the washers
Make sure to correctly orient the parts
Steps to assemble:
After putting glue into the screw hole in the wheel, screw on the front plate with the crank and two washers. See image below and exploded view for more info
Hold in place the back piece with the back screw and washers in place
While still holding the back in place screw it on, again with glue in the other screw hole of the wheel
Using glue, snap the top and bottom pieces into place and fill with candy