Goli ''The Bullet''

Created by [Ayush Jaiswal] • Started on June 19, 2025

An ant weight battlebot, with a wedge type weapon

Project Idea/Inspo

I always wanted to make a combat robot when I joined robotics. This is my first attempt, and will surely not be the last.

This video inspired me to make something similar!
https://www.youtube.com/watch?v=35WmwW88A8w&t=249s

Day 1: June 21, 2025

Time Spent: 2h

Researched and started some CAD. Also drew out a basic 2D view from the top & had some basic idea of the materials I would need.
Day 1 pic 1
Day 1 pic 2

Day 2: June 22, 2025

Time Spent: 1h

Researched a bit more and did some CAD. Can't decide between Scalar horizontal weapon or the Viper horizontal weapon. I would have to research more about this. Day 2 pic 1

Day 3: June 23, 2025

Time Spent: 4h

I would be sticking to the Scalar horizontal weapon, I made a lot of changes in CAD. But now I am facing a problem, My weapon motor is way too big, I definetly might need to get a completely different one, (the bore shaft is too big + the weapon blade looks way to close to the motor). Day 3 pic 1

Day 4: June 24, 2025

Time Spent: 2h

I figured out the problem I was facing with my CAD, and infact I realised there was another big problem I didn't look into for really long. Day 4 pic 1
After looking at the Scalar Horizontal Spinner for Inspiration, I realised what was wrong and why my project wasn't lining up like I wanted it to. My wheels are too high, resultng in my weapon motor not being able to fit in. I feel like this project is coming to an end (atleast the design part), Day 4 pic 2
I really need to focus on this tomorrow for a long time and finish the design compeletly. I would also need to spend a hot hour doing the schematic and BOM so that I don't leave anything out.

Day 5: July 2, 2025

Time Spent: 6h

I was really demotivated these past days to work on this project, because I just felt like I couldn't make this. I scrapped so many designs and most of my research time went to waste. There was so much other stuff I was working on, and I completely forgot to work on this. Thanks so much to @Dylan and @Luke Williams on Slack for motivating me to build this and speeding up my research process. I was able to craft a BOM & make a wiring schematic.
Day 5 pic 1

I now have to completely redo my CAD and focus on new changes while also making my robot capable of fighting and future upgrades. I figured to make my robot a wedge bot (control focused) instead of a horizontal spinner for the sake of budget and simplicity.

Day 6: July 3, 2025

Time Spent: 3h

Started a fresh CAD document and I managed to get done my chassis.
Day 6 pic 1

Now I have to make the weapon, which will be 3d printed.

Day 7: July 4, 2025

Time Spent: 2h

Grinded out CAD Today, came up with this design.

Screenshot 2025-07-04 164428

Wheels is really big + CAD isn't polished

Day 8: July 5, 2025

Time Spent: 2h

Polished my CAD, really proud of this design. Screenshot 2025-07-05 115726


Dylan told me to add wheel bumpers, which I overlooked. So I added that! Screenshot 2025-07-05 132623

Day 9: July 6, 2025

Time Spent: 2h

Finalised BOM & Made STL Files. Had some issues pushing it into Git. Finally done.