Inertial - Revision history

Arctic: add wiki link

2026-10-10T20:47:16Z

add wiki link

← Older revision		Revision as of 20:47, 10 October 2026
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	\| Power \|\| 2x 1600mAh 6s LiPo		\| Power \|\| 2x 1600mAh 6s LiPo
	\|}		\|}

			=== Future updates will be live at https://wiki.combat-robot.systems/build-logs-and-event-results/12lb/inertial ===

	=== <u>Inertial v1-v6</u> ===		=== <u>Inertial v1-v6</u> ===

Arctic: v6

2026-09-30T04:17:03Z

← Older revision		Revision as of 04:17, 30 September 2026
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	\| Weight Class \|\| [[12lb Weight Class\|12lb]] + 6lb (shuffle bonus)		\| Weight Class \|\| [[12lb Weight Class\|12lb]] + 6lb (shuffle bonus)
	\|-		\|-
	\| Body Material \|\| ~~95A TPU~~		\| Body Material \|\| UHMW/PLA+ frame rails
	\|-		\|-
	\| Weapon \|\| ~~1/2"~~ AR500 ~~ring + 95A TPU shell~~		\| Weapon \|\| 4140 steel shell + AR500 teeth
	\|-		\|-
	\| Weapon Drive \|\| 2x Badass ~~3515 710kv~~. Mamba X ESCs. Gear ratio 1:4		\| Weapon Drive \|\| 2x Badass 4520 830kv. Mamba X ESCs. Gear ratio 1:5
	\|-		\|-
	\| Drive \|\| Repeat Ultras		\| Drive \|\| Repeat Ultras
	\|-		\|-
	\| Power \|\| 2x 1600mAh 6s ~~LiHv~~		\| Power \|\| 2x 1600mAh 6s LiPo
	\|}		\|}

	=== <u>Inertial v1-v6</u> ===		=== <u>Inertial v1-v6</u> ===
			{{#ev:youtube\|X7gEyyt-Lw4}}
			[[File:Inertial-v6-wireframe.png\|thumb\|Wireframe model of the v6 CAD]]

	~~{{#ev~~:~~youtube~~\|~~MLzaH9Ko13I}}~~		=== <u>Design Iterations</u> ===

			==== <u>V6</u> ====
			[[File:Inertial-v6-dev.jpg\|thumb\|Test assembly for v6]]
			Inertial-v5 never competed...v6 aims to fix the issues with v5 in one big design pass.

			I previously wrote that v5's goal was rigid mounting...but that was just not the case due to the whole bot still being a giant TPU unibody chassis.

			Lessons learned from v5

	~~=== <u>Design Iterations</u> ===~~		* Spring mounting is necessary
			* TPU unibody and friction drive just don't mix, the TPU just bends instead of pushing the weapon wheels into the shell
			* Start preparing earlier for competitions...don't just start testing everything two weeks before the comp
			* Big motor funny, so keep the BA4520

			So v6 is going to be a major departure from previous versions, going entirely to an assembly of 2d parts rather than one giant TPU 3d part. You can see the interlocking parts in the test assembly image.

			v6 spins WAY better than previous versions, it spins up extremely fast and extremely reliably.

			v6 also shuffles WAY better than previous versions, I finally figured out good cleats for a 18lb shuffler.

			There are two big remaining question marks for Inertial-v6 before her debut at October NHRL.

			# Will the weapon drive fail? It spins up reliably, but not for very long. It remains to see if PA-GF + higher hardness Vytaflex will solve the weapon reliability problems
			# Will the electronics fail? Spinning up like this puts a huge strain on the electronics, and I've already killed one battery. I'm also dealing with issues where an entire half will just shut down. Will that happen during competition this weekend?

			I've also compiled my advice on building a shuffling shell spinner onto the Aftermarket Kinetics blog, coming soon!

	==== <u>V5</u> ====		==== <u>V5</u> ====

Arctic at 14:54, 5 August 2026

2026-08-05T14:54:41Z

← Older revision		Revision as of 14:54, 5 August 2026
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	\| Power \|\| 2x 1600mAh 6s LiHv		\| Power \|\| 2x 1600mAh 6s LiHv
	\|}		\|}

			=== <u>Inertial v1-v6</u> ===

			{{#ev:youtube\|MLzaH9Ko13I}}

	=== <u>Design Iterations</u> ===		=== <u>Design Iterations</u> ===

Arctic: added a little rant about shuffling shell spinners

2026-06-12T17:56:56Z

added a little rant about shuffling shell spinners

← Older revision		Revision as of 17:56, 12 June 2026
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	I'm excited for v5, though it is early stages now (06/2026), let's see how it performs at the Hive in July		I'm excited for v5, though it is early stages now (06/2026), let's see how it performs at the Hive in July

			===== An aside about building a shuffling shell spinner =====
			When designing 4wd vert number #1000, there's a lot of design inspiration you can get. It's not a solved problem by any means, but there are plenty of successful bots to steal ideas from and integrate into your own bot. Whether that's from your own weight class or higher.

			There are kits, bot breakdowns from top builders, and speciality products made by JCR or Repeat.

			But building a shuffling shell spinner is a totally different story.

			There's literally nothing for me to steal ideas from. No other bots in the weight class, and only one other bot (Chonkiv) really that I can take inspiration from. And trust me I've stared at Chonkiv whenever I had the chance, but ultimately so many things are different that I'm basically working from scratch.

			All I get are little bits and pieces, a shuffling mechanism here (12lb shufflers like Weather Report and Galaxi), a weapon drive there (Chonkiv and Drift), but there's literally no one in the weight class that I can "copy".

			''I don't think this is a bad thing though.''

			Inertial is such fun to work on because it's jam packed with ideas that are truly my own. The spring mounting mechanisms, the outer bearing mounts, even the cams and the shuffler design are all unique to Inertial because I came up with them on my own.

			If you ever see me in the pits and are curious about these unique design elements just come by and I'll happily rant about them.

			This is just a random aside but I really do encourage anyone reading this to take up a unique design for a robot. Make something truly unique and experiment with it. Learn from your mistakes and build something that ''you can really call your own''.

			Maybe you'll have to be the worst ranked robot in your weight class for awhile, but that won't last forever. Or maybe you can just be like me and not care at all about results.

			Working on Inertial is one of the most fufilling and mentally stimulating things I've ever done and I'm so glad I dived straight into the deep end (12lb AND a shell spinner) for my first ever robot (of any kind).

			Anyway soapbox rant over.

	==== <u>V4</u> ====		==== <u>V4</u> ====

Arctic: added v5 changes

2026-06-12T17:45:28Z

added v5 changes

@@ Line 18: / Line 18: @@
 === <u>Design Iterations</u> ===
 ==== <u>V4</u> ====
@@ Line 137: / Line 164: @@
-[[Category:12lb Bots]]
+[[index.php?title=Category:12lb Bots]]
-[[Category:Full Body Spinners]]
+[[index.php?title=Category:Full Body Spinners]]
-[[Category:NHRL 2025]]
+[[index.php?title=Category:NHRL 2025]]
-[[Category:NHRL 2026]]
+[[index.php?title=Category:NHRL 2026]]

Paxmorningstar at 19:17, 3 June 2026

2026-06-03T19:17:27Z

← Older revision		Revision as of 19:17, 3 June 2026
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	[[Category:Full Body Spinners]]		[[Category:Full Body Spinners]]
	[[Category:NHRL 2025]]		[[Category:NHRL 2025]]
			[[Category:NHRL 2026]]

Paxmorningstar at 21:20, 2 February 2026

2026-02-02T21:20:02Z

← Older revision		Revision as of 21:20, 2 February 2026
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	[[~~index.php?title=~~Category:12lb Bots]]		[[Category:12lb Bots]]
	[[~~index.php?title=~~Category:Full Body Spinners]]		[[Category:Full Body Spinners]]
	[[~~index.php?title=~~Category:NHRL 2025]]		[[Category:NHRL 2025]]

Arctic at 22:47, 28 January 2026

2026-01-28T22:47:34Z

← Older revision		Revision as of 22:47, 28 January 2026
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	=== <u>Design Iterations</u> ===		=== <u>Design Iterations</u> ===

	=== <u>V4</u> ===		==== <u>V4</u> ====
	[[File:Inertial-v4.jpg\|thumb\|Work in progress Inertial-v4]]		[[File:Inertial-v4.jpg\|thumb\|Work in progress Inertial-v4]]
	Inertial-v4 will compete at NHRL Feburary 2026		Inertial-v4 will compete at NHRL Feburary 2026

Arctic: add inertial v4

2026-01-28T22:42:39Z

add inertial v4

← Older revision		Revision as of 22:42, 28 January 2026
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	=== <u>Design Iterations</u> ===		=== <u>Design Iterations</u> ===

			=== <u>V4</u> ===
			[[File:Inertial-v4.jpg\|thumb\|Work in progress Inertial-v4]]
			Inertial-v4 will compete at NHRL Feburary 2026

			<u>What went wrong with v3?</u>

			If you watch the fights with Inertial-v3 you'll see that they're both quite disappointing, the bot would just seemingly stop moving and stop spinning.

			This was due to two issues

			# The clearance between the shell and the shufflers was basically zero, which meant any instability (from hits for example) would lead to the shell clipping the shufflers, leading to the shufflers melting and jamming up
			# The weapon motors drove the center gear via plastic 3D printed gears. These would consistently melt and cause the weapon to fail

			So v4 aims to address these two main issues in a minor design pass. Most of the DNA of v3 is good (I think?) so I want to give it a proper shot to perform by fixing these two glaring issues. This is more of a v3.5 than a v4.

			<u>Changes</u>

			* Center gears replaced with metal 3D printed aluminum. Pinions replaced with press-fit 3D printed aluminum
			* The entire shell is bumped upwards by a good amount, increasing the clearance to an acceptable amount
			* A simple housing was printed to keep the shufflers in place

			So overall, a very minor design pass, v5 will be a much more major design overhaul to address the new and exciting issues that v4 will hopefully uncover.

	==== <u>V3</u> ====		==== <u>V3</u> ====
	[[File:Inertial-v3-wip.jpg\|thumb\|Work in progress Inertial-v3]]		[[File:Inertial-v3-wip.jpg\|thumb\|Work in progress Inertial-v3]]
	Inertial-v3 ~~will compete~~ at NHRL November 2025		Inertial-v3 competed at NHRL November 2025

	<u>Notable changes</u>		<u>Notable changes</u>
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	[[Category:12lb Bots]]		[[index.php?title=Category:12lb Bots]]
	[[Category:Full Body Spinners]]		[[index.php?title=Category:Full Body Spinners]]
	[[Category:NHRL 2025]]		[[index.php?title=Category:NHRL 2025]]

Paxmorningstar at 17:43, 18 October 2025

2025-10-18T17:43:01Z

← Older revision		Revision as of 17:43, 18 October 2025
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	=== Winning ===		=== Winning ===
	https://brettzone.nhrl.io/brettZone/fightReviewMulti.php?gameID=EX-b0a674e9d87f4cbe&tournamentID=nhrl_june25_12lb#cams=cam-Program-Feed&t=0.00		https://brettzone.nhrl.io/brettZone/fightReviewMulti.php?gameID=EX-b0a674e9d87f4cbe&tournamentID=nhrl_june25_12lb#cams=cam-Program-Feed&t=0.00


			[[Category:12lb Bots]]
			[[Category:Full Body Spinners]]
			[[Category:NHRL 2025]]