Team Upstart – Cookiemonster by Wallieonline

Cookiemonster (Featherweight)
Motors: Gimson GR02
ESC: TZ85A
Weapon: Hardox 500/450 Beater

Cookiemonster 2014

The story of Cookiemonster.

Somewhere in 2013 during a lunch break at work, the first plans for a robot were made. After seeing several eggbeaters, the choice for the type of robot was also quickly made.

After learning some CAD drawing through youtube and asking around on various forums, it was time to do some building.

A lot of practice and grumbling later, the first drawing for a base plate for Cookiemonster was ready.
This could now be cut by my brother (laser operator) so I could concentrate on the electronics.

We chose 3mm stainless steel for the bottom plate and 10mm steel for the sides. The main reason for using these materials was their free availability.

After ordering some Motors (Gimsons GR02), it was time to update the brushless speed controllers (TZ85A) with new firmware for brushed motors.

The first test was with a wedge version of the robot to see if it would all work.

Now that the basics were in place, we could start working on the weapon.
After a long search for a piece of 20mm Hardox 500, it was time to try cutting it with the laser. Not ideal but it works.

As we didn't have a lathe at our disposal, we added the axles later which eventually proved to be a weak point.

The first event for Cookiemonster was MMM-18 Bochum Germany in 2014.

Thank you IBF! With the build of Cookiemonster2 I will post some pictures of the inside.

In this video all the home challenges performed by Team Upstart including original audio.

@dkf Thank you!
I will upload some pictures later.
Here is a video of the first weapon test.

Thanks! I was surprised too
Really like how it handles.
In the future I can place the wheels 10 mm more to the front of the robot this should make it even better.

Testing the Racerstar 80A weapon ESC with BLHeli_S firmware and a new HTD5 belt.
The weapon sounds much better now.

Thanks! In the video the weapon runs around 5000 rpm.
In the final situation it should run around 8000 rpm.
The egg beater is only 1.6 kg Hardox 450 so its not a monster, but I think good fun for an event like INDI Robot Games.
At the moment I have a design for a 3kg drum for other competitions.
Maybe later this year I will try to build this drum... after I finish building my first beetleweight

Testing the Racerstar 80A weapon ESC with custom BLHeli_S (no breaks) firmware.

Cookie Monster fighting against Kasirga Marinedagen 2022.

Cookie Monster fighting against Fireball Marinedagen 2022.

Cookie Monster fighting against Han the Hammer Marinedagen 2022.

My phone memory was full (switched to my normal photo camera when I discovered the where no videos recorded) so battle1 against holzmaster III and battle2 against Bonx are missing.