Squirrelicane v6

thingiverse

It's an antweight 3D printed combat robot ringspinner... I was looking at Kylellrc's Mr.Roomba but since they use a lot more metal than in our ruleset, I went back to the drawing board and designed my own using the gross dimensions of their bot. I decided to use v-wheels because they are self-centering. This thing is stupidly dangerous. Don't run it without taking a lot of precautions. It's designed to operate with: a 2206 2300kv brushless outrunner drone motor with a 20A speed controller 2 N20-500 gear motors for steering. a 2s-3s tank ESC for the drive motors. a 2s or 3s battery. I'm using a 3s 450mAh (45C). a radio and receiver... I'm using a 16 channel stick controller with a 4 channel micro receiver... (Tanaris Q X7 with a jumper J4in1-EN module, and an AFHDS (FlySky) FS2A receiver) Post ERRF update. I found a few flaws in the design. I'm in the process of iterating the chassis now to fix them... I'm correcting the power switch design and adding a weapon safety. Here's a video of testing the bot at ERRF2019: https://youtu.be/NLjpnDdf5gw I'll update and link to a build article and more videos later... 2/8/2020 updates: For the latest combat, I made some pretty drastic changes to reflect some rule changes, drop some weight, etc. I designed a working screw terminal switch... I cut some brass prongs off of a lamp plug replacement that I picked up at a local hardware store... then I used a drill/tap bit in M3 .05 to make M3 threads and soldered wires to the brass pieces... saved a lot of weight there... FingerTech sells a switch like this, but I made mine for less than a dollar. I switched from the v-wheels to 21.5mm wheels with a single 625 bearing in them... (the kind they use on the slots of not-v 2020 extrusion... like on the Chinese laser cutters and cheaper delta printers. I'll update my BOM to reflect. I also switched to Duramic PLA+ and it made a major performance improvement. Here's a link to the video of a mass melee with Squirrelicane… I'll have to make some more changes, move the motors so I can increase the diameter of the wheels to make the bot more controllable... and probably drop to N20 6V 300 motors, and add a heatsink below the 2206 motor... though washers mostly fixed the problem... but the motor gets hot enough to melt the chassis a bit which binds it up. My rings are designed for a CCW motor, but you can easily mirror them (both) for a CW motor. https://www.youtube.com/watch?v=P65c6uA1w5M