Antweight Combat Wedge - Rollcage

thingiverse

V4.0 Update: I strengthened the rollcage by adding more solid material and reducing openings, which means a bit more weight but also less annoying support material. V2.2 Update: I added screw holes throughout the chassis for mounting various armor upgrades. I also replaced the stand with a better version that should prevent the bot from sliding off. V3 Update: I found an issue with Rollcage - he had a knack for getting stuck on his back, in the vertical position. To fix this, I gave him a tapered rear end to help prevent getting stuck. I also added some screw holes in the rear of the chassis for mounting armor. This is my 3D printed design of a bot used in our 150 gram Antweight combat league. I've named him Rollcage - he's a standard wedge/pusher bot and perfect for anyone looking to get into robot fighting. We'll be using the Rollcage design to make a few spares for newcomers to try out and fight with. Rollcage leaves a little room for customization as far as internal components go, but please use this list of components as a guide to get started: 2x 50:1 microgear motors. http://botbitz.com.au/index.php?route=product/product&path=64&product_id=55 2x Pololu 42x19mm wheels. https://www.robotgear.com.au/Product.aspx/Details/300-Pololu-Wheel-42-x-19-mm-pair-with-rubber-tread-tire 2x brushed ESC's. http://www.ebay.com.au/itm/131645159656?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT RC trigger style 2 channel transmitter and receiver. I'm using a Flysky FS-GT3C in the below video, but this Hobbyking transmitter is cheaper and will work just as well. https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=72930 260mAh battery (this higher capacity is only used so it can go several matches without a charge and Rollcage had plenty of weight to spare). http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=37342 V-Tail Mixer. https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=46730 Power on LED (optional because ESC and receiver lights are visible). Power on switch (robot fighting requirement). Assembly: Print the chassis and two of the offset microgear motor mounts. Add supports in the chassis and motor mounts as required. Carefully break away the support material. Give the parts some acetone vapor treatment (optional). Wire up the motors to the ESC and connect their supply to the battery connector and power switch. Add a power on LED if you want (with an open top, the lights from the ESC's and reliever provide more than enough power on indication). Carefully put in the motors and ESC's inside the chassis. Secure the motors with the motor mount clamps. Use a couple small self-tapping screws to hold it down. Connect the receiver and mixer to the ESC and insert into chassis. Hold everything down with some hot glue if required (I found that everything sat pretty snug inside and no glue was necessary). Connect the battery and insert into chassis. Attach the wheels and you're done! Here's a build video of Rollcage: https://youtu.be/YQmMvlJW1rw Print Settings: Printer: Flashforge Dreamer Rafts: No Supports: Yes Resolution: 0.2mm Infill: 20% Notes: Also used brim to prevent edges curling up. Designed using Sketchup and Tinkercad. Printed using Simplify3D.