Action i: Gear ratio of at least 3:1

trdd
Member
Member
Posts: 64
Joined: Thu Sep 13, 2018 7:24 am
Has thanked: 0
Been thanked: 0

Action i: Gear ratio of at least 3:1

Post by trdd »

Action i:
Use at least a 3:1 ratio gear system to initiate the next action.

Use this post to comment on this task.
trdd
Member
Member
Posts: 64
Joined: Thu Sep 13, 2018 7:24 am
Has thanked: 0
Been thanked: 0

Re: Action i: Gear ratio of at least 3:1

Post by trdd »

Question for everyone here:

Let's say I have a gear with 10 teeth and a mating gear with 30 teeth.

To achieve a 3:1 ratio is the 10 teeth gear the driving gear or the driven gear?
User avatar
Umaroth
Exalted Member
Exalted Member
Posts: 387
Joined: Sat Feb 10, 2018 8:51 pm
Division: C
State: CA
Pronouns: He/Him/His
Has thanked: 166 times
Been thanked: 322 times

Re: Action i: Gear ratio of at least 3:1

Post by Umaroth »

trdd wrote: Mon Oct 21, 2019 8:10 am Question for everyone here:

Let's say I have a gear with 10 teeth and a mating gear with 30 teeth.

To achieve a 3:1 ratio is the 10 teeth gear the driving gear or the driven gear?
Gear ratio is defined as output:input, so the gear with 10 teeth would be driving the gear with 30 teeth.
Cal 2026
Troy SciOly 2021 Co-Captain
Proud Padre of the Evola SciOly Program 2018-now
Dank Memes Area Homeschool Juggernaut 2018-now
Sierra Vista SciOly Co-Head Coach 2020-now

Umaroth's Userpage
trdd
Member
Member
Posts: 64
Joined: Thu Sep 13, 2018 7:24 am
Has thanked: 0
Been thanked: 0

Re: Action i: Gear ratio of at least 3:1

Post by trdd »

Umaroth wrote: Mon Oct 21, 2019 8:26 am
trdd wrote: Mon Oct 21, 2019 8:10 am Question for everyone here:

Let's say I have a gear with 10 teeth and a mating gear with 30 teeth.

To achieve a 3:1 ratio is the 10 teeth gear the driving gear or the driven gear?
Gear ratio is defined as output:input, so the gear with 10 teeth would be driving the gear with 30 teeth.
That's what I thought. I wanted everyone to know and be clear about it as there could be competitors using a 1:3 ratio instead by mistake.
User avatar
bearasauras
Member
Member
Posts: 410
Joined: Tue Mar 04, 2003 8:33 pm
State: CA
Has thanked: 51 times
Been thanked: 115 times

Re: Action i: Gear ratio of at least 3:1

Post by bearasauras »

NSO posted the following relevant FAQ:

Question:
"a 3:1 rato gear system. . ." Does this mean output teeth/input teeth = 3, or the other way around? Thanks.

Response:
The rules don't specify the direction it must go.
Edlc1
Member
Member
Posts: 2
Joined: Fri Dec 13, 2019 6:07 pm
Has thanked: 0
Been thanked: 0

Re: Action i: Gear ratio of at least 3:1

Post by Edlc1 »

I have a 3:1 ratio gear system initiating the screw/wing nut action, while the gears run so is the screw/wing nut. The ES at our last invitational said that they were parallel actions. The rules state that the 3:1 ratio gear system initiates the next action, but does not specify minimum rotations to complete the gear action. I posted a question on the FAQ at sonic.org, but no reply yet. Can anyone comment on this?. Thank you
User avatar
waterboy
Member
Member
Posts: 55
Joined: Fri Mar 08, 2019 12:47 pm
Division: B
State: IN
Has thanked: 2 times
Been thanked: 3 times

Re: Action i: Gear ratio of at least 3:1

Post by waterboy »

Edlc1 wrote: Fri Dec 13, 2019 6:14 pm I have a 3:1 ratio gear system initiating the screw/wing nut action, while the gears run so is the screw/wing nut. The ES at our last invitational said that they were parallel actions. The rules state that the 3:1 ratio gear system initiates the next action, but does not specify minimum rotations to complete the gear action. I posted a question on the FAQ at sonic.org, but no reply yet. Can anyone comment on this?. Thank you
I would say that as long as the gear system initiates the next action, (which it sounds like yours does) then it doesn't matter how much it should turn since there is no specification.
Circuit Lab, Density Lab, Machines, Mission Possible :geek: :geek:
scioly1
Member
Member
Posts: 2
Joined: Wed Dec 04, 2019 7:58 am
Division: B
State: CO
Has thanked: 0
Been thanked: 0

Re: Action i: Gear ratio of at least 3:1

Post by scioly1 »

Could the 3:1 gear ratio pull on a string which lift a golf ball up (action vii) or would i need to do something like push a weight which lifts the golf ball?
GPRSTEM
Member
Member
Posts: 14
Joined: Wed Sep 05, 2018 6:33 pm
Has thanked: 0
Been thanked: 0

Re: Action i: Gear ratio of at least 3:1

Post by GPRSTEM »

How can you claim a gear system is 3:1 if it doesn't do the rotations as expected?
User avatar
nateDC
Member
Member
Posts: 33
Joined: Fri Nov 30, 2018 4:13 pm
Division: C
State: MD
Pronouns: He/Him/His
Has thanked: 7 times
Been thanked: 4 times

Re: Action i: Gear ratio of at least 3:1

Post by nateDC »

GPRSTEM wrote: Wed Jan 08, 2020 7:22 am How can you claim a gear system is 3:1 if it doesn't do the rotations as expected?
There is no minimum rotation given.
scioly1 wrote: Tue Jan 07, 2020 11:59 am Could the 3:1 gear ratio pull on a string which lift a golf ball up (action vii) or would i need to do something like push a weight which lifts the golf ball?
The gear system must initiate the next action, if you word your ASL carefully, you should be able to make that work.
I can't think of anything else to put here, so I just wrote this...

Return to “Mission Possible B”