Review on 🧩 UGears 3D Wooden Puzzle UTG0031 by Wayne Drakh

This is the best and most complex product I have developed from UGears. If you take your time and put it together well, it will run about 15 feet across hard surface ground. I recommend taking 320 grit sandpaper and using it to smooth any surfaces where parts are moving. You don't have to grind all the gear teeth, but make sure to wax them well. I use a plain white spark plug, rubbing it between the gear teeth works well. Don't skimp on wax, rub it on everything that moves, axles, bearings, sliding parts. Be sure to grind and wax the sides of the gears. Grinding and waxing also helps hold pressed parts in place and prevent parts from breaking. Don't use too much wax. If you break a large piece that doesn't have a replacement part, a little wood glue can fix it. The rubber bands for the motor seem to be too big, but they fit if you pull them through the slots. Make sure the lengths of the straps are approximately the same, they are difficult to move once in the slot. Another trick is to let each assembly run as installed, such as: B. Winding up and starting the engine assembly after it and the drive shaft have been installed in the chassis. Multiple freewheels are required to remove burrs and ensure smooth operation. Be patient and enjoy the build, it will work well and look great.