RobotRobot: Link new pages: Troubleshooting, ESC Firmware, ExpressLRS and EdgeTX Setup, What Your First Robot Costs

2026-10-17T17:05:34Z

Link new pages: Troubleshooting, ESC Firmware, ExpressLRS and EdgeTX Setup, What Your First Robot Costs

RobotRobot: New page: Beetleweight weight class overview (rules, typical builds, getting started, where they fight)

2026-10-17T14:34:21Z

New page: Beetleweight weight class overview (rules, typical builds, getting started, where they fight)

New page

The '''Beetleweight''' class is for robots weighing up to '''3 lb''' (1.36 kg) in the US, or '''1.5 kg''' in the UK. It's one of the most competitive classes, fought at many local events and at '''NHRL''', and many builders move up to it after starting with smaller robots.

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==Rules==
* '''SPARC''': 3 lb (1.36 kg), called Beetleweight in the '''[[SPARC Tournament Procedures]]'''. Shufflers can weigh 3.75 lb, non-traditional drives 4.5 lb, and walkers 6 lb.
* '''UK (FRA)''': 1.5 kg.[http://www.fightingrobots.co.uk/documents/Build-Rules.pdf]
* '''NHRL''': 3 lb, under NHRL's own '''[https://wiki.nhrl.io/wiki/index.php?title=NHRL_Rules rules]'''.

==Typical builds==
* '''Drive:''' 22 mm brushed planetary gearmotors, or (increasingly) brushless gearmotors such as Repeat Robotics and FingerTech brushless drives (see '''[[Insect Class Motors]]''' and '''[[Drive Systems]]''').
* '''Weapon:''' brushless outrunners of around 28–36 mm with 40–45 A ESCs, often belt driven.
* '''Battery:''' 3S or 4S LiPo, often around 850–1000 mAh.[https://justcuzrobotics.com/products/ssp-robot-kit]
* '''Materials:''' often mostly 3D printed plastics with metal armor and reinforcements (frequently cut by an online service), or UHMW, aluminum and titanium; weapons in hardened steel (see '''[[Armor and Materials]]''' and '''[[Fabrication Services]]''').[https://wiki.nhrl.io/wiki/index.php/Combat_Robotics_Starter%27s_Guide]
* '''Common designs:''' vertical spinners and drums, horizontal undercutters, beater bars, and lifters and control robots.
* '''Arena:''' SPARC recommends 3/8" polycarbonate walls (or an air-gapped double layer) and at least an 8 × 6 ft floor.

==Getting started==
NHRL's starter guide says a capable 3 lb robot can be built for around $400, though top robots can cost into the thousands.[https://wiki.nhrl.io/wiki/index.php/Combat_Robotics_Starter%27s_Guide] Kits (as of October 2026, often sold out between batches) include the '''[https://justcuzrobotics.com/products/ssp-robot-kit Just 'Cuz Robotics SSP]''' lifter, the '''[https://repeat-robotics.com/collections/peter-bar-kit Repeat Robotics Peter Bar Kit]''' vertical spinner, the '''[https://www.fingertechrobotics.com/proddetail.php?prod=ft-NightWing-robot FingerTech NightWing]''' undercutter and FingerTech's beater-bar parts bundle, and NHRL's '''[https://shop.nhrl.io/products/crash-course HAVOC Academy Crash Course]''' build-along kit. See '''[[Kits]]'''.

==Where they fight==
Beetleweights fight at many local events (see '''[[Events]]''') and at most NHRL events in Norwalk, Connecticut.

===NHRL 3 lb world champions===
{| class="wikitable"
! Year !! Champion
|-
| 2021 || Lynx
|-
| 2022 || Lynx
|-
| 2023 || Booty Brigade
|-
| 2024 || Repeater
|-
| 2025 || Pinevictus
|}
Source: '''[https://en.wikipedia.org/wiki/National_Havoc_Robot_League Wikipedia]''' and the '''[https://wiki.nhrl.io/wiki/index.php/NHRL:Stats:Event_Winners-3lb NHRL event winners list]'''.

==See also==
* '''[[Antweight]]''' (1 lb) and '''[[Hobbyweight]]''' (12 lb)
* '''[[RobotClasses|Robot Classes]]'''
* '''[[Spinner Design]]'''

@@ Line 17: / Line 17: @@
 ==Getting started==
-NHRL's starter guide says a capable 3 lb robot can be built for around $400, though top robots can cost into the thousands.[https://wiki.nhrl.io/wiki/index.php/Combat_Robotics_Starter%27s_Guide] Kits (as of October 2026, often sold out between batches) include the '''[https://justcuzrobotics.com/products/ssp-robot-kit Just 'Cuz Robotics SSP]''' lifter, the '''[https://repeat-robotics.com/collections/peter-bar-kit Repeat Robotics Peter Bar Kit]''' vertical spinner, the '''[https://www.fingertechrobotics.com/proddetail.php?prod=ft-NightWing-robot FingerTech NightWing]''' undercutter and FingerTech's beater-bar parts bundle, and NHRL's '''[https://shop.nhrl.io/products/crash-course HAVOC Academy Crash Course]''' build-along kit. See '''[[Kits]]'''.
+NHRL's starter guide says a capable 3 lb robot can be built for around $400, though top robots can cost into the thousands.[https://wiki.nhrl.io/wiki/index.php/Combat_Robotics_Starter%27s_Guide] See '''[[What Your First Robot Costs]]''' for a full breakdown. Kits (as of October 2026, often sold out between batches) include the '''[https://justcuzrobotics.com/products/ssp-robot-kit Just 'Cuz Robotics SSP]''' lifter, the '''[https://repeat-robotics.com/collections/peter-bar-kit Repeat Robotics Peter Bar Kit]''' vertical spinner, the '''[https://www.fingertechrobotics.com/proddetail.php?prod=ft-NightWing-robot FingerTech NightWing]''' undercutter and FingerTech's beater-bar parts bundle, and NHRL's '''[https://shop.nhrl.io/products/crash-course HAVOC Academy Crash Course]''' build-along kit. See '''[[Kits]]'''.
 ==Where they fight==

Beetleweight - Revision history

RobotRobot: Link new pages: Troubleshooting, ESC Firmware, ExpressLRS and EdgeTX Setup, What Your First Robot Costs

RobotRobot: New page: Beetleweight weight class overview (rules, typical builds, getting started, where they fight)