Motor Booster for Hot Wheels 2.0

thingiverse

This is the 2nd version of my motor booster for hot wheels cars and connects to the Track Builder System. It has a more powerfull motor and you need lquid silicone. Also some elektronics and soldering skills are required to build. Things you need: <b>Screws</b> (aliexpress) 2x m2x4mm Headless Hexagon Socket Grub DIN916 (motor side fix) 8x m3x8mm Hex Socket Cap DIN912 (top) 4x m3x16mm Hex Socket Cap DIN912 (motor mount) 8x m3x30mm Hex Socket Cap DIN912 (bottom) <b>Brass Hot Melt Insert Knurled Nut</b> (aliexpress) 20x m3x4.5mm OD 4.5mm! (case assembling, all used on Right and Left Case) <i>- 4mm+ length will work too but OD 4.5mm is important for melting them in.</i> 2x m3x4.5mm OD 4.5mm! (motor side fix but not realy needed) <i>- melt those in with motor mounted.</i> <b>Bearings</b> (aliexpress) 2x Mr128zz 8x12x3.5mm (bottom axis) <i>- can also be melted in</i> <b>Brass Hot Melt Insert Knurled Nut</b> (aliexpress) 2x m3x4mm Hex Socket Set Screw Cup (motor side fix) <b>Electronics</b> (aliexpress) 1x HW-070 PWM DC Motor Speed Controller 5-16V 2x Mabuchi Motor RE-280SA-20120 2x pairs 18650 battery pack 16MM*18.5MM spring contact piece And some cables to wire the parts. <b>Battery</b> 2x Protected 18650 Cells <i>- The electronics used have no reverse polarity protection or discharge protection.</i> <b>Print</b> 1x Mid-Plate 1x Left-Case (left/right are the same) 1x Right-Case (left/right are the same) 2x Motor-Mount 2x Motor-Gear 2x Rotator 1x Lower-Case 4x Bat-Case-Filler 1x Lower-Case-Lid 1x Top-Control 1x Top-Direction Electronics are quite easy. 18650 in series to the HW-070 input and both motors in parallel on the HW-070 output. If you miss something in the description or found something strange just write me. <i>Optional:</i> Bridge connector for round course. It has two parts that need to be glued together. <b>Silicone Rotator</b> <b>Print</b> 2x Rotator 1x Silicone_Mold_Bottom 1x Silicone_Mold_Top You also need 4x m3x4.5mm OD 4.5mm Brass Hot Melt Insert Knurled Nut, Painter Tape and Liquid Silicone Shore A 35. ~34g per silicone rotator. And some muscles to get the filled mold apart (Hint: Remove the tape AND screws first). :-) You need make two silicone parts. So wait and reuse the mold for the second one or print one more mold to make both parts at once. Print Gripper.stl with flexible material if you want to give it a try. Not sure if this will work instead of silicone. Action Video: https://youtu.be/bPpGSI1XwNo