Did I forget this site exists …
Anyways took a break to focus on the leaving and no they are not done but I’m going to drive on before losing my last shred of sanity
Since last time Cortex has been put aside and gear has been upgraded which has spurred me on to recreate my favorite robotic slice of cheese, a 150g Firestorm
Ive gone through a single iteration so far: insert drum roll
Iteration 1:
My two major goals going into this project is for it to be modular and to be a complete pain to kill off.
The internals are simple with a Malenki Nano (the GOAT PCB), a 350MAH 20C 2s Arrows Lipo which should last for around 2 full fights. For drive I decided on two 600 RPM N20’s and two 100RPM N20’s for the flipping arm. I opted for power over speed since I could have gone for 1k RPM motors but the flipper is positioned high on the wedge due to space limits stopping any linear actuators from being used, and so far the results are good in terms of shoving power.
The 100 RPM motors also have plenty oomph and are more than enough for self righting and all going well a nice few flips and of course of one goes down due to impact the other will hopefully keep going.
In terms of wedge angle I have just yoinked firestorms angle, if it aint broke dont fix it I guess. The chassis shape is pretty much the same also except for the wheels being outside the main body leaving the robot being able to drive inverted if needs be (hopefully). The chassis is printed from regular PLA on a standard Creality Ender 3 V3 KE (this thing is unreal).
The armour packages are printed from 95A TPU which extend to being flexible wheel guards.
Finally the wheels hubs are ordinary PLA fitting into Lego rubbers giving plenty of traction @ 30MM diameter and are 13MM wide.
After some testing the overall result is positive. The main downside is the flipper not being long enough to self right and assembly is a bit more akward than i think it should be due to the positioning of the malenki and lipo package, worst of all it weighs 125.7g so we certainly got plenty of wiggle room. One other tiny disadvantage is the screws not being flush which do provide catching points going against my goal of this thing being like firestorm, a pain to kill. (unless you are razer ig)
At the time of writing this it is currently disassembled and iteration 2 should be on the way shortly, of course any humbling or ideas is greatly appreciated.
TPU Side pods
Top Plate
Back Plate
Frontal Wedge
Lego Wheel with custom hub
Flipping System thus far