JSumo

26/05/2026

25/05/2026

Gears ⚙️⚙️? Yes, we have full stocks at jsumo shop.
We carry good selection of hardened steel gears for extreme impact resistance. If you need help on deciding for your next project drop us pm.

At picture 0.8 module gears shown (this module of 0.8 suggested for presicion and torque transfer)

14T Motor pinion gear (we have 5mm and 6mm hole diameter options)
14/50T concentric double gear (made from 1 mono lock steel body)
42T spur wheel gear (biggest size recommended for 40mm wheels).

You may want to check jsumo.com for custom drive train for next sumo robot or combat robot projects.

08/05/2026

https://portlandrobotics.org/member_bots/gol_v_sol.php?link_id=16 Old, but GOLD. Possibly mini sumo robot designs and page from 2007-2010...

This is a comparison of Solo, built by Tim Weaver, and Goliath built by Daryl Sandberg. We will compare strategies, materials and components and comment on their advantages or disadvantages in this article. Our hope is that this information will stir interest in building new types and styles of mini...

16/03/2026

I guess, we found free energy friends... Right?

Super efficient Maxon gear motors give that dynamo effect at this sumo robot (Video from Apocalypse Sumo Robot)😉⚙️

04/03/2026

https://www.facebook.com/share/r/18We1uaVXw/

04/03/2026

Crimping.. Very important skill for all robot builders.
Pictures are from M1 Mini Sumo robot assembly page:
https://blog.jsumo.com/how-to-assemble-m1-mini-sumo-robot/

01/03/2026

Genesis Mainboard for Mini Sumo Robots, efficient controller with switching mode regulator and complimentary circuits for robot projects. Basic Arduino sketch is avaible ar product page too: jsumo.com/gns

28/02/2026

Few current sensor modules we newly added to Jsumo with Armbots at background🦾

We added article at blog.jsumo.com for current sensors you may want to check out.

25/02/2026

BIG, FAST, STRONG.

💫Symtec DC gears motors in action: jsumo.com/sym

568 grams each with double bearing supported 10mm shaft.

29/10/2025

In this video, I’ll show you how to update the internal firmware of the Reactor motor driver (suitable for V1.2). The firmware is the main control code running inside the driver board, latest firmware is ready by 28 October 2025.

⚡Please visit our page for more details on how to burn/upload the firmware.
https://blog.jsumo.com/how-to-update-reactor-v1-2-firmware/