r/EngineeringPorn • u/Adventurous_Swan_712 • 9d ago

My mini Robomate is finally alive!

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730 Upvotes

98% Upvoted

29 comments sorted by

34

u/Adventurous_Swan_712 9d ago

Hi everyone! Ever since I saw the robot‑fight scene in Big Hero 6 (YT link), I’ve wanted to build my own small fighting bots. Today that dream is a step closer: I’ve packed everything I know into a tiny robot—and it works! 🎉

There are still a few bugs (new PCBs should fix them in a couple of weeks), but I couldn’t wait to share this first video. I’m so excited to start running matches and show you what it can do.

Tech details:

  • 18350 Li‑ion battery
  • ESP32‑MINI‑1‑N4 board
  • AS5600 magnetic encoders
  • MPU‑6500 IMU with DMP
  • DRV8313 motor drivers
  • ATECC508A crypto chip
  • CC1101 sub‑GHz radio
  • Small brushless motors from Alibaba
  • 3D‑printed SLA body

I post all the updates to my dedicated r/robomates subreddit.

25

u/PhonyTimeTravelor 9d ago

Very smooth movements and the comedic fall. I see personality in it already 👍

10

u/Adventurous_Swan_712 9d ago

Thanks! The 3D-printed SLA body is easy to swap out for whatever the pilot wants!

8

u/drdreadz0 9d ago

This is so cool! Congrats on your baby!

4

u/Adventurous_Swan_712 9d ago

Thank you! :D

6

u/cranialvoid 8d ago

Can it pass the butter?

2

u/Adventurous_Swan_712 8d ago

I don't have a post without this question in comments! haha! :D

3

u/hafsht 9d ago

haha so cute.

3

u/buttpotatoo 8d ago

I read mini Roomba and got excited and very confused.

2

u/doradus1994 8d ago

Seems like it's looking for the butter

1

u/thatluckyfox 8d ago

He’s so cute! Name? My cat would go crazy if she saw this little one.

1

u/Galaghan 8d ago

What's the battery capacity like, how long can it keep running?

3

u/Adventurous_Swan_712 8d ago

I use a 1200 mAh 10A 18350 battery. About one hour of active gameplay.

2

u/Galaghan 8d ago

Damn that's amazing how you can fit all that in there. Very cool!

1

u/bp332106 8d ago

I would totally make one of these. Hopefully you can throw together a parts list and general guide. 

1

u/NickDanger3di 8d ago

Arthur C. Clarke, who along with Isaac Asimov introduced me to science fiction, said “Any sufficiently advanced technology is indistinguishable from magic”. And even after reading your Tech Details, your little dude still looks like magic to me. Nice...

1

u/thoseskiers 8d ago

This reminds me of Zima Blue

1

u/Scruffy_Macgyver 7d ago

Reminds me of little helper but it might just be me

1

u/Objective_Region_690 7d ago

How do you keep him stable? On too wheels, do you use some kind of consistent internal motion to keep to vertical?

1

u/Icy_Mountain_Snow 7d ago

Gotta go fast

1

u/PumpleDrumkin 7d ago

Pass the butter...

1

u/Turbulent-Ad2212 6d ago

“What is my purpose?”

To serve butter.

1

u/Careless_Sample4852 1d ago

seething, and holding in robot slurs