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ebarker
01-09-2012, 08:15 AM
Single or Dual Speed Transmissions ?

Does anyone have thoughts or insights regarding using a 2 speed super shifter for this years game.

davidthefat
01-09-2012, 09:09 AM
Shifting to a lower gear ratio would probably help during the balancing and the higher one to zip around the field while shooting. Probably not a s simple as that, but that is the only use I see this year and will stay away from it.

Samk
01-09-2012, 10:03 AM
I know the main reason for me suggesting them to my team is for the benefit of the slow speed on the bridge, it could be a real help in balancing

theprgramerdude
01-09-2012, 10:17 AM
The low gear ratio might help if you decide to cross the bump. Since hitting the bump at speed and using the momentum to carry you over might be rather disastrous for your wheels/frame, low gear could give you the torque to crawl over.

Marc S.
01-09-2012, 01:39 PM
I see dual speed being an advantage this year. In 07 bots with ramps were almost useless with single speed partners. With the bridges and very little room to move(with multiple bots) a very slow low gear will probably be a huge advantage.

ratdude747
01-09-2012, 01:43 PM
I think it might be a great year for the supershifter... since 10W 1" stroke solenoids are allowed, I was surprised AM hasn't made a solenoid shift kit...

waialua359
01-09-2012, 03:52 PM
In 2001, teams 60 and 254 had 2 major advantages with regards to the bridge vs everyone else, generally speaking at SVR that year.
6 wheel drive for stability and a multispeed transmission to quickly balance, using low gear.
It was clearly an advantage, since 2001 was a timed game to win.

I think using one this season has its merits.

Mk.32
01-09-2012, 04:26 PM
This year seems like a great one for Shifters.
And with AndyMark it is quite easy to get them.
We are defininty heavily considering them, the only issue is being the high price.

Marc S.
01-09-2012, 04:34 PM
This (http://www.youtube.com/watch?v=Suu7b91jgr0&feature=related) is an awsome match from '01. Watch for 60 going over the barrier and 254 balancing(they were both 4WD).

Another good match. (http://www.youtube.com/watch?v=g-wy3uRL9M0&feature=related)

This (http://www.youtube.com/watch?v=QGjUe9P0vOo&feature=related) was the alliances best match.

I notice that the bridge that year stayed down while this years bridges stay balanced. That tells me that it will be harder to get on the bridge but easier to balance once on.

waialua359
01-09-2012, 04:44 PM
I must be getting old.
I was there and we were with them.

*mixing up recall of memory*

teh_lol
01-09-2012, 04:55 PM
The way I see it, there will be people trying to knock you around no matter what game it is. You might even be blocked trying to get into the key. A low gear transmission can let you push through any blockers especially when you have high traction wheels. ALso it is good for balancing when you can push your teammates to the right balance.

PayneTrain
01-09-2012, 07:03 PM
The SuperShifters cost an arm and a leg compared to CIMples or ToughBoxes, but I feel low gear is going to be big this year. I know we will be using them, unless something else happens.

Andrew Lawrence
01-09-2012, 07:11 PM
We were thinking of a "pseudo 2 speed gearbox". By that, I mean we'll be using a single speed CIMple box geared for high speed, but add a button to drastically decrease our speed. We don't think we'll need a lot of torque primarily from the gearbox itself, and we doubt we'll get into any (major) pushing matches, so we think the wheels we're using and the "low speed" button we have will solve those problems.

Lil' Lavery
01-09-2012, 07:32 PM
We were thinking of a "pseudo 2 speed gearbox". By that, I mean we'll be using a single speed CIMple box geared for high speed, but add a button to drastically decrease our speed. We don't think we'll need a lot of torque primarily from the gearbox itself, and we doubt we'll get into any (major) pushing matches, so we think the wheels we're using and the "low speed" button we have will solve those problems.

Yahtzee. If slower speed is what you desire, rather than a higher torque, that can be accomplished simply and cheaply via software.

Andrew Lawrence
01-09-2012, 07:34 PM
Yahtzee. If slower speed is what you desire, rather than a higher torque, that can be accomplished simply and cheaply via software.

That's what we're doing. Just press and hold a button and the speed is run at a fraction of the high speed. We used it last year for precision movements, and to make wide turns easier. Loved it then, so we agreed to use it now.

Ninja_Bait
01-09-2012, 07:35 PM
Yahtzee. If slower speed is what you desire, rather than a higher torque, that can be accomplished simply and cheaply via software.

However, I think torque is super important considering the lenient defensive rules. Gotta be able to counter defend.

fjuarez98
01-09-2012, 07:36 PM
Single or Dual Speed Transmissions ?

Does anyone have thoughts or insights regarding using a 2 speed super shifter for this years game.

im new here and i dont know what does a single or dual speed transmissions mean, what does it do andwhat is it useful for?

Andrew Lawrence
01-09-2012, 07:38 PM
However, I think torque is super important considering the lenient defensive rules. Gotta be able to counter defend.

Yeah, but with most all of the 7-9 strategies we have planned out, our robot isn't going to have much robot-on-robot action. It will have sufficient torque to do some pushing, however We plan on be passively defensive, or T-boning teams, since most of them won't be able to defend that way.

Our "special" wheels will help, too, as standard traction wheels won't get as much grip as them. ;)

Andrew Lawrence
01-09-2012, 07:39 PM
im new here and i dont know what does a single or dual speed transmissions mean, what does it do andwhat is it useful for?

A transmission is like a gearbox. You put motors into it and it adjusts the speed of the motors that go to the wheels. Normally, it's just the one motor speed, however there are certain advanced ones that can make 2 different speeds.

ALSO:

WELCOME TO CHIEF DELPHI! :D

Marc S.
01-10-2012, 01:21 AM
im new here and i dont know what does a single or dual speed transmissions mean, what does it do andwhat is it useful for?

Think of a car and how when traveling at low speeds the engine can rev at high rpm's, and at higher speeds the engine can rev at lower rpm's.

Some teams take this concept and use it for their drive trains. Its very useful because it allows for higher speeds and more maneuverable control than a single-speed.

Gray Adams
01-10-2012, 02:00 AM
Think of a car and how when traveling at low speeds the engine can rev at high rpm's, and at higher speeds the engine can rev at lower rpm's.

Not electric cars.