Shreking Ball - Revision history

Paxmorningstar at 19:06, 26 June 2025

2025-06-26T19:06:38Z

← Older revision		Revision as of 19:06, 26 June 2025
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	{{Bot Stats\|bot=Shrekingball\|class=3lb}}		{{Bot Stats\|bot=Shrekingball\|class=3lb}}

			==Gallery==
			<gallery widths=250px heights=250px>
			File:Shrecking Ball Nov-2020.jpg\|Shreking Ball in November 2020
			</gallery>

	[[Category:3lb Bots]]		[[Category:3lb Bots]]
	[[Category:US Robots]]		[[Category:US Robots]]
			[[Category:Unique Weapons]]
	[[Category:NHRL 2020]]		[[Category:NHRL 2020]]

Luma Robotics at 23:54, 30 August 2024

2024-08-30T23:54:07Z

← Older revision		Revision as of 23:54, 30 August 2024
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	Shreking Ball rolls around the arena like a "mad hamster stuck in a ball". It has an internal reaction wheel which can be used to rotate the bot, but the weight of the reaction wheel was undersized and turned the bot too slowly for competition.		Shreking Ball rolls around the arena like a "mad hamster stuck in a ball". It has an internal reaction wheel which can be used to rotate the bot, but the weight of the reaction wheel was undersized and turned the bot too slowly for competition.

	===Robot Facts===		===Robot Facts===
	The first appearance was at the November 2020 NHRL event. It features a (mostly) vertical spinner weapon, embedded inside the ball that protrudes 0.75" outside the ball. The main body is varying thicknesses of HDPE, cut with CNC. The two ends that cap the sphere are TPU. The internal weapon pulleys and drive gearing are 3D printed nylon.		The first appearance was at the November 2020 NHRL event. It features a (mostly) vertical spinner weapon, embedded inside the ball that protrudes 0.75" outside the ball. The main body is varying thicknesses of HDPE, cut with CNC. The two ends that cap the sphere are TPU. The internal weapon pulleys and drive gearing are 3D printed nylon.
	{\| class="wikitable" style="width: 60%"		{\| class="wikitable" style="width: 60%"
	\|-		\|-
	\|Driver\|\|Jim Kazmer		!Driver!![[Jim Kazmer]]
	\|-		\|-
	\|Weight Class\|\|[[3lb Weight Class\|3lb +2lb no wheels bonus]]		\|Weight Class\|\|[[3lb Weight Class\|3lb +2lb no wheels bonus]]
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	\|Power\|\|4S 650mah LiPo		\|Power\|\|4S 650mah LiPo
	\|}		\|}

	There are several big issues with this design approach:		There are several big issues with this design approach:

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	[[Category:3lb Bots]]		[[Category:3lb Bots]]
			[[Category:US Robots]]
	[[Category:NHRL 2020]]		[[Category:NHRL 2020]]

Gilhova at 07:56, 19 July 2021

2021-07-19T07:56:59Z

← Older revision		Revision as of 07:56, 19 July 2021
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	* Pondering other ways to make this ball more controllable... please share your insights.		* Pondering other ways to make this ball more controllable... please share your insights.
	* Might close up the ball completely and move the weapon to side edges.		* Might close up the ball completely and move the weapon to side edges.

			{{Bot Stats\|bot=Shrekingball\|class=3lb}}

	[[Category:3lb Bots]]		[[Category:3lb Bots]]

Remzak: Proofreading (discussed with author)

2020-11-28T22:03:29Z

Proofreading (discussed with author)

← Older revision		Revision as of 22:03, 28 November 2020
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	* '''Directional Control''' - Shreking Ball can move quickly forward or backward, however, it cannot turn quickly. An internal reaction wheel was added directly centered on the vertical axis, but it was undersized (in order to stay within its weight requirement). Even then, powering the reaction wheel up/down would turn the ball, but if the down/up were done too quickly, the rotation would be reversed. The small size resulted in slow turns and not was not used during its matches.		* '''Directional Control''' - Shreking Ball can move quickly forward or backward, however, it cannot turn quickly. An internal reaction wheel was added directly centered on the vertical axis, but it was undersized (in order to stay within its weight requirement). Even then, powering the reaction wheel up/down would turn the ball, but if the down/up were done too quickly, the rotation would be reversed. The small size resulted in slow turns and not was not used during its matches.
	* '''Weapon Reach and Orientation''': The weapon's reach was too minimal to create ~~too many~~ strikes; that coupled with the fact that the weapon tended to roll with the bot when it lost its footing, made it hard to drive to weapon into the opponent.		* '''Weapon Reach and Orientation''': The weapon's reach was too minimal to create effective strikes; that coupled with the fact that the weapon tended to roll with the bot when it lost its footing made it hard to drive to weapon into the opponent.
	[[File:ShrekingBall-CAD-1.png\|thumb\|CAD view of "right side" Shreking Ball]]		[[File:ShrekingBall-CAD-1.png\|thumb\|CAD view of "right side" Shreking Ball]]

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	\|}		\|}
	[[File:ShrekingBall-CAD-2.png\|thumb\|Internal structure of Shreking Ball (no shell)]]		[[File:ShrekingBall-CAD-2.png\|thumb\|Internal structure of Shreking Ball (no shell)]]
	In its first fight in 2020, Shreking Ball went up against Droopy, which is also a 5 lbs bot with two very heavy and destructive horizontal spinners. The match was fun to watch... both bots went aggressively after each other and when Droopy made contact, Shreking Ball went flying. Needless to say, given Shreking Ball's lack of a controllable weapon, it did minimal damage to Droopy, while putting a few hundred cuts in the arena floor. Droopy landed some ~~very~~ massive hits, which resulted in cracking one of Shreking Ball's rings (and adding 24 gashes around the rest of the bot). Shreking Ball made it to the end of the match, ~~with~~ Droopy awarded the judges decision.		In its first fight in 2020, Shreking Ball went up against Droopy, which is also a 5 lbs bot with two very heavy and destructive horizontal spinners. The match was fun to watch... both bots went aggressively after each other and when Droopy made contact, Shreking Ball went flying. Needless to say, given Shreking Ball's lack of a controllable weapon, it did minimal damage to Droopy, while putting a few hundred cuts in the arena floor. Droopy landed some massive hits, which resulted in cracking one of Shreking Ball's rings (and adding 24 gashes around the rest of the bot). Shreking Ball made it to the end of the match, and Droopy was awarded the judges decision.

	In its second match, Shreking Ball was up against Booooring. Given that both of these bots ~~has~~ minimal/ineffective weaponry, is was mesmerizing to watch the green glowing ball, but the match lacked the big hits of the first match. Given the length of repairs from the first match, Shreking Ball's battery was not completely charged and it ran out of power in the last 20 seconds of the match.		In its second match, Shreking Ball was up against Booooring. Given that both of these bots have minimal/ineffective weaponry, it was mesmerizing to watch the green glowing ball, but the match lacked the big hits of the first match. Given the length of repairs from the first match, Shreking Ball's battery was not completely charged and it ran out of power in the last 20 seconds of the match.

	===== Changes being Considered =====		===== Changes being Considered =====

JimKazmer: added section "Planned changes".

2020-11-25T23:16:12Z

added section "Planned changes".

← Older revision		Revision as of 23:16, 25 November 2020
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	In its second match, Shreking Ball was up against Booooring. Given that both of these bots has minimal/ineffective weaponry, is was mesmerizing to watch the green glowing ball, but the match lacked the big hits of the first match. Given the length of repairs from the first match, Shreking Ball's battery was not completely charged and it ran out of power in the last 20 seconds of the match.		In its second match, Shreking Ball was up against Booooring. Given that both of these bots has minimal/ineffective weaponry, is was mesmerizing to watch the green glowing ball, but the match lacked the big hits of the first match. Given the length of repairs from the first match, Shreking Ball's battery was not completely charged and it ran out of power in the last 20 seconds of the match.

			===== Changes being Considered =====

			* More LEDs... make this bot glow.
			* Internal structure much heavier (thicker) than necessary. Much weight can be saved. (for that internal reaction wheel).
			* Gearing was done the original way in order to use a brushless motor... would drop two stage gearing and switch to a single stage using a geared brushed motor. This will also save weight.
			* Pondering other ways to make this ball more controllable... please share your insights.
			* Might close up the ball completely and move the weapon to side edges.

	[[Category:3lb Bots]]		[[Category:3lb Bots]]
	[[Category:NHRL 2020]]		[[Category:NHRL 2020]]

JimKazmer: added another CAD image

2020-11-25T23:08:14Z

added another CAD image

← Older revision		Revision as of 23:08, 25 November 2020
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	\|NHRL November\|\|0 Wins - 2 Losses		\|NHRL November\|\|0 Wins - 2 Losses
	\|}		\|}
			[[File:ShrekingBall-CAD-2.png\|thumb\|Internal structure of Shreking Ball (no shell)]]
	In its first fight in 2020, Shreking Ball went up against Droopy, which is also a 5 lbs bot with two very heavy and destructive horizontal spinners. The match was fun to watch... both bots went aggressively after each other and when Droopy made contact, Shreking Ball went flying. Needless to say, given Shreking Ball's lack of a controllable weapon, it did minimal damage to Droopy, while putting a few hundred cuts in the arena floor. Droopy landed some very massive hits, which resulted in cracking one of Shreking Ball's rings (and adding 24 gashes around the rest of the bot). Shreking Ball made it to the end of the match, with Droopy awarded the judges decision.		In its first fight in 2020, Shreking Ball went up against Droopy, which is also a 5 lbs bot with two very heavy and destructive horizontal spinners. The match was fun to watch... both bots went aggressively after each other and when Droopy made contact, Shreking Ball went flying. Needless to say, given Shreking Ball's lack of a controllable weapon, it did minimal damage to Droopy, while putting a few hundred cuts in the arena floor. Droopy landed some very massive hits, which resulted in cracking one of Shreking Ball's rings (and adding 24 gashes around the rest of the bot). Shreking Ball made it to the end of the match, with Droopy awarded the judges decision.

JimKazmer: replaced "gyro" with "reaction wheel"

2020-11-25T22:55:32Z

replaced "gyro" with "reaction wheel"

← Older revision		Revision as of 22:55, 25 November 2020
Line 3:		Line 3:
	Shreking Ball, to my knowledge, is the first (and possibly last) of its kind. It bears some resemblance to TUZI (a Chinese competitor robot which fought in Season 2 of ''King of Bots''). Shreking Ball's two sides are locked together form a solid shell that spins as one unit (TUZI's two sides were really wheels shaped as half-spheres).		Shreking Ball, to my knowledge, is the first (and possibly last) of its kind. It bears some resemblance to TUZI (a Chinese competitor robot which fought in Season 2 of ''King of Bots''). Shreking Ball's two sides are locked together form a solid shell that spins as one unit (TUZI's two sides were really wheels shaped as half-spheres).

	Shreking Ball rolls around the arena like a "mad hamster stuck in a ball". It has an internal ~~gyro~~ which can be used to rotate the bot, but the ~~gyro~~ was undersized and turned the bot too slowly for competition.		Shreking Ball rolls around the arena like a "mad hamster stuck in a ball". It has an internal reaction wheel which can be used to rotate the bot, but the weight of the reaction wheel was undersized and turned the bot too slowly for competition.
	===Robot Facts===		===Robot Facts===
	The first appearance was at the November 2020 NHRL event. It features a (mostly) vertical spinner weapon, embedded inside the ball that protrudes 0.75" outside the ball. The main body is varying thicknesses of HDPE, cut with CNC. The two ends that cap the sphere are TPU. The internal weapon pulleys and drive gearing are 3D printed nylon.		The first appearance was at the November 2020 NHRL event. It features a (mostly) vertical spinner weapon, embedded inside the ball that protrudes 0.75" outside the ball. The main body is varying thicknesses of HDPE, cut with CNC. The two ends that cap the sphere are TPU. The internal weapon pulleys and drive gearing are 3D printed nylon.
Line 24:		Line 24:
	There are several big issues with this design approach:		There are several big issues with this design approach:

	* '''Directional Control''' - Shreking Ball can move quickly forward or backward, however, it cannot turn quickly. An internal ~~gyro~~ was added directly centered on the vertical axis, but it was undersized (in order to stay within its weight requirement). Even then, powering the ~~gryo~~ up/down would turn the ball, but if the down/up were done too quickly, the rotation would be reversed. The ~~gyro's~~ small size resulted in not ~~demonstrable~~ ~~turning~~ during its matches.		* '''Directional Control''' - Shreking Ball can move quickly forward or backward, however, it cannot turn quickly. An internal reaction wheel was added directly centered on the vertical axis, but it was undersized (in order to stay within its weight requirement). Even then, powering the reaction wheel up/down would turn the ball, but if the down/up were done too quickly, the rotation would be reversed. The small size resulted in slow turns and not was not used during its matches.
	* '''Weapon Reach and Orientation''': The weapon's reach was too minimal to create too many strikes; that coupled with the fact that the weapon tended to roll with the bot when it lost its footing, made it hard to drive to weapon into the opponent.		* '''Weapon Reach and Orientation''': The weapon's reach was too minimal to create too many strikes; that coupled with the fact that the weapon tended to roll with the bot when it lost its footing, made it hard to drive to weapon into the opponent.
	[[File:ShrekingBall-CAD-1.png\|thumb\|CAD view of "right side" Shreking Ball]]		[[File:ShrekingBall-CAD-1.png\|thumb\|CAD view of "right side" Shreking Ball]]

JimKazmer: added CAD drawing

2020-11-25T22:49:08Z

added CAD drawing

← Older revision		Revision as of 22:49, 25 November 2020
Line 26:		Line 26:
	* '''Directional Control''' - Shreking Ball can move quickly forward or backward, however, it cannot turn quickly. An internal gyro was added directly centered on the vertical axis, but it was undersized (in order to stay within its weight requirement). Even then, powering the gryo up/down would turn the ball, but if the down/up were done too quickly, the rotation would be reversed. The gyro's small size resulted in not demonstrable turning during its matches.		* '''Directional Control''' - Shreking Ball can move quickly forward or backward, however, it cannot turn quickly. An internal gyro was added directly centered on the vertical axis, but it was undersized (in order to stay within its weight requirement). Even then, powering the gryo up/down would turn the ball, but if the down/up were done too quickly, the rotation would be reversed. The gyro's small size resulted in not demonstrable turning during its matches.
	* '''Weapon Reach and Orientation''': The weapon's reach was too minimal to create too many strikes; that coupled with the fact that the weapon tended to roll with the bot when it lost its footing, made it hard to drive to weapon into the opponent.		* '''Weapon Reach and Orientation''': The weapon's reach was too minimal to create too many strikes; that coupled with the fact that the weapon tended to roll with the bot when it lost its footing, made it hard to drive to weapon into the opponent.
			[[File:ShrekingBall-CAD-1.png\|thumb\|CAD view of "right side" Shreking Ball]]

	Strengths:		Strengths:
Line 48:		Line 49:

	In its second match, Shreking Ball was up against Booooring. Given that both of these bots has minimal/ineffective weaponry, is was mesmerizing to watch the green glowing ball, but the match lacked the big hits of the first match. Given the length of repairs from the first match, Shreking Ball's battery was not completely charged and it ran out of power in the last 20 seconds of the match.		In its second match, Shreking Ball was up against Booooring. Given that both of these bots has minimal/ineffective weaponry, is was mesmerizing to watch the green glowing ball, but the match lacked the big hits of the first match. Given the length of repairs from the first match, Shreking Ball's battery was not completely charged and it ran out of power in the last 20 seconds of the match.
			[[Category:3lb Bots]]
			[[Category:NHRL 2020]]

JimKazmer: New Page

2020-11-25T22:39:41Z

New Page

New page

Shreking Ball is an 8" ball that was built as an engineering challenge. When powered on, it '''glows green'''.
[[File:Shreking Ball.jpg|alt=|thumb|Shreking Ball]]
Shreking Ball, to my knowledge, is the first (and possibly last) of its kind. It bears some resemblance to TUZI (a Chinese competitor robot which fought in Season 2 of ''King of Bots''). Shreking Ball's two sides are locked together form a solid shell that spins as one unit (TUZI's two sides were really wheels shaped as half-spheres).

Shreking Ball rolls around the arena like a "mad hamster stuck in a ball". It has an internal gyro which can be used to rotate the bot, but the gyro was undersized and turned the bot too slowly for competition.
===Robot Facts===
The first appearance was at the November 2020 NHRL event. It features a (mostly) vertical spinner weapon, embedded inside the ball that protrudes 0.75" outside the ball. The main body is varying thicknesses of HDPE, cut with CNC. The two ends that cap the sphere are TPU. The internal weapon pulleys and drive gearing are 3D printed nylon.
{| class="wikitable" style="width: 60%"
|-
|Driver||Jim Kazmer
|-
|Weight Class||[[3lb Weight Class|3lb +2lb no wheels bonus]]
|-
|Body Material||HDPE (CNC) + TPU (3D printed)
|-
|Weapon||Vertical Spinner, 200 grams
|-
|Weapon Drive||1 x FliteTest 2218 Brushless Motor, belt driven
|-
|Drive||1 x FliteTest 2218 Brushless Motor, 2 stage gear driven
|-
|Power||4S 650mah LiPo
|}
There are several big issues with this design approach:

* '''Directional Control''' - Shreking Ball can move quickly forward or backward, however, it cannot turn quickly. An internal gyro was added directly centered on the vertical axis, but it was undersized (in order to stay within its weight requirement). Even then, powering the gryo up/down would turn the ball, but if the down/up were done too quickly, the rotation would be reversed. The gyro's small size resulted in not demonstrable turning during its matches.
* '''Weapon Reach and Orientation''': The weapon's reach was too minimal to create too many strikes; that coupled with the fact that the weapon tended to roll with the bot when it lost its footing, made it hard to drive to weapon into the opponent.

Strengths:

* Durability : Shreking Ball is close to indestructible. It is encased inside a thick durable shell, making it almost impossible to harm the internal robot.

==Tournament Results==
====2020====
{| class="wikitable" style="width: 60%"
|-
|NHRL January||Did Not Compete
|-
|NHRL July 1||Did Not Compete
|-
|NHRL July 2||Did Not Compete
|-
|NHRL September||Did Not Compete
|-
|NHRL November||0 Wins - 2 Losses
|}
In its first fight in 2020, Shreking Ball went up against Droopy, which is also a 5 lbs bot with two very heavy and destructive horizontal spinners. The match was fun to watch... both bots went aggressively after each other and when Droopy made contact, Shreking Ball went flying. Needless to say, given Shreking Ball's lack of a controllable weapon, it did minimal damage to Droopy, while putting a few hundred cuts in the arena floor. Droopy landed some very massive hits, which resulted in cracking one of Shreking Ball's rings (and adding 24 gashes around the rest of the bot). Shreking Ball made it to the end of the match, with Droopy awarded the judges decision.

In its second match, Shreking Ball was up against Booooring. Given that both of these bots has minimal/ineffective weaponry, is was mesmerizing to watch the green glowing ball, but the match lacked the big hits of the first match. Given the length of repairs from the first match, Shreking Ball's battery was not completely charged and it ran out of power in the last 20 seconds of the match.