150g Suplex Battlebots

thingiverse

Suplex Robot. This is a 150g combat robot., This is a varation on my Flipper with most parts interchangeable between the two. I'm attaching the .STEP file as well for those who want to edit. As well as a 3D PDF to reference the assembly. Very simple build that doesn't require extra tools. Wedges can be printed or cut out of sturdy material. 0.5mm Titanium is ideal. But Plexi/Acrylic also works as well. Printed wedges work fine if you're just flipping things around the house. Assembly tricks: I used a lighter and heated the nails when inserting them into the printed arms. This creates a tight fit and keeps them from backing out. Otherwise, a drop of superglue keeps them in the arms. The holes in the body and the hole in the lifter linkage should a loose fit for the nails so they can rotate freely. The nail spacers are put on the nail to keep the servo linkage from moving too much laterally on the nail. I use a paper clip to attach the flipper to the servo arm and cut off the excess after its bent. Otherwise tapping the servo arm with an M2 tap works great also. The lego hub has tolerances to printed easily on my printer and be a snug fit, but attaching a tighter tolerance version incase you need it. I use #3 Plastite screws to attach everything. But you can use #4 if you want stronger ones for the wedge attachment. BOM: Hardware: 1qty 2" Brad Nail 2qty 3/4" or 1" Brad Nail ( https://amzn.to/2JvT7mE ) Small Zip Ties Paper Clip HotGlue/Superglue 4-20 Plastite Screws ( https://amzn.to/2Q5UFWI ) 3-24 Plastite Screws ( https://amzn.to/2AInL9z ) Wheels: Lego 24x14 Tire ( https://amzn.to/2yLfDUd ) M3x25mm Button Head (https://amzn.to/3jea7Oi) Electronics: Flipper Servo: KST DS215MG V3 Here are other variations to look for that will also work. KST X12-508 or Corona DS929HV for a cheaper alternative. Drive Motors: N20 Micro Gearmotor 30:1 or 1000rpm ( https://amzn.to/3obdFor ) ESC: Endbots DESC or Budget DESC : https://www.endbots.com/collections/products/products/endbots-desc?variant=5580585992221 RX: Your choice the Endbots DESC comes with a Spektrum receiver. TX: Your choice. I use a Spektrum DX6 ( https://amzn.to/2qk8RQA ) Battery: Nano-tech 300mah 2S Lipo Pack ( https://hobbyking.com/en_us/turnigy-nano-tech-300mah-2s-45-90c-lipo-pack.html ) Note: Any micro servo will work, but you'll be limited on flipping power. For that reason, I prefer the servos linked above, but you can build with a cheaper servo to test first. You can buy these wheels to save weight if needed. Although the lego wheels work great and are much cheaper SC-2110p ProComp ( https://www.132slotcar.us/product_info.php?cPath=2706_2725&products_id=33940 )