Finish your degree! (Or rush build a shell spinner instead)

Ok so as the title implies I am procrastinating my degree by rush building a shell spinner over the easter holidays. The reason why it is not anywhere near easter at time of posting is because I am no longer procrastinating by designing a robot, I am instead writing about it.

So since for new bloods this year you need to bring a new weapon type, I had to abandon my 30cm wide drum thing I was working on and pivot to something else. So logical decision for someone with finals approaching in a couple of weeks and still taking place literally through when the event is going to be, I thought lets make a shell spinner how hard can it be?

I gave myself 1 week over easter to do all of the design for the robot – without access to my printer. This is because my printer is located at my manufacturing and production facility (student accom) and I was staying at my second residence/holiday home (my parents house). This was also because I had only this week to get on the lasered order before it was sent off. I found cadding a whole robot without printing a single prototype or looking at a physical part to be quite scary at first but ultimately fine (I wont know it doesn’t work until I actually try and make the thing and ive not done that yet lol). Basically fingers crossed that CAD = Real life with 100% accuracy and zero discrepancies which I think is a totally valid and fair assessment to make. Given that it has been known to work that way precisely 0 times in the past for me, I reckon that means I’m “due” it to work this time or whatever that gamblers fallacy is.

Anyway heres the robot. Its like hella small and hub motor and 6s and stuff v cool. Some wajoo inspo except not too much otherwise then it would be good. Going under the working name of Trafik. Thought it would be a bit more traffic cone-y originally. Top of shell is 5mm carbon hopefully it won’t explode.

Here it is from the bottom. Idea is everything is bottom access because lol obviously. That stuff will all be covered up tho.

Current interesting bits and stats and whatnot

Compacts on 6s – hope and pray they don’t burn via current limiting because programming escs always goes so so well for me

Wep motor needs to be custom really but I absolutely cba so we’re under volting at 6s and hoping it doesn’t burn (theme starting)

No room for any electronics because the entire chassis is just battery so we will put them underneath the wep motor where it will totally be nice and cool

Everything is a massive heatsink to hopefully stop the burning

The bearings for the weapon stackup weigh more than the entire drive system lmao.

This space satellite lookin thing will hopefully keep it cool otherwise ill cry.

Anyway look I made some of it and so far cad = reality. Tune in next time im feeling like a big procrastinate for more updates!

8 Likes

Rhys as a university administrator who has to deal with students and assessments, this is incredibly irresponsible.

As someone who loves robots I say crack on. Love the drive setup in particular here.

1 Like

this is so hecking cool i love the aesthetic

Wagwan nerds. Metal bits have come courtesy of the amazing Andy Russell and Lasered.

These can be seen below in figure 1.

Figure 1. everything is a heatsink

Still got to make the bloomin thing though mind. Some post processing still required on these also featuring my favourite activity countersinking hardox :heart_eyes::heart_eyes:

2 Likes

Yep, definetly writing the documentation for a degree assignment… seen below in figure 1.!