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Unread 09-02-2017, 14:58
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Re: Passive vs Active Gearing

Quote:
Originally Posted by CalTran View Post
If your passive system takes more than just a straight pull to get the gear out of the robot, you should probably re-evaluate your system.
Most passive systems, due to the bumper rules, will leave the gear further out on the peg (spring). The peg is flexible enough that a quick jerk from the pilot will usually leave the gear on the ground.

straight pulls are not as easy as it seems
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Unread 09-02-2017, 15:01
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Re: Passive vs Active Gearing

So what are people considering a passive vs active system.

1) Pushing the gear onto the peg further
or
2) Aligning the gear with something besides drivetrain
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Unread 09-02-2017, 11:37
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Re: Passive vs Active Gearing

Our gear transport is passive. I could see where the argument could be made that you waste a few moments of time waiting for the pilot to lift the gear out, but since our only event this season will be week 1 we aren't too worried about that detail.

Quote:
Originally Posted by Munchskull View Post
Sight lines. They are going to be terrible.
True, but then you should have automated gear peg alignment
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Unread 09-02-2017, 11:48
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Re: Passive vs Active Gearing

I'm actually more interested in seeing how many teams have active systems for retrieving the Gear, not placing it.
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Unread 09-02-2017, 12:42
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Re: Passive vs Active Gearing

Quote:
Originally Posted by Cothron Theiss View Post
I'm actually more interested in seeing how many teams have active systems for retrieving the Gear, not placing it.
Yes I'm interested in this as well. We found that an active receiver from the station is far superior to a passive funnel. Just giving the gear a little bit of force downwards is going to help seat it even in a box and can correct for misalignment.

Regarding active placers, we decided that that's also very beneficial. I think someone else in the thread said that there are tradeoffs, but we managed to package an active placer in a volume smaller than many teams passive systems.


In my opinion, I think all the high-level gear bots are going to be able to dump the gear the instant the peg gets in the gear.
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Unread 09-02-2017, 12:50
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Re: Passive vs Active Gearing

Quote:
Originally Posted by ShIfTiNgBoT View Post
Yes I'm interested in this as well. We found that an active receiver from the station is far superior to a passive funnel. Just giving the gear a little bit of force downwards is going to help seat it even in a box and can correct for misalignment.
Tricky thing about active feeder systems - do they still work when the bot isn't up against the wall? If not, then there may be a real possibility of negating their time benefit by wasting cycle time clearing balls/etc before intake.
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Unread 09-02-2017, 13:59
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Re: Passive vs Active Gearing

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Originally Posted by JesseK View Post
Tricky thing about active feeder systems - do they still work when the bot isn't up against the wall? If not, then there may be a real possibility of negating their time benefit by wasting cycle time clearing balls/etc before intake.
While I agree that teams will need to insure their system still works even if there's Fuel in the way, I feel like that's not solely a characteristic of active systems. I'd argue that a lot of the passive Gear pockets I've seen might be more susceptible to imprecise alignment and spacing than some potential active intake systems.
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Unread 09-02-2017, 16:26
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Re: Passive vs Active Gearing

Quote:
Originally Posted by ShIfTiNgBoT View Post
Yes I'm interested in this as well. We found that an active receiver from the station is far superior to a passive funnel. Just giving the gear a little bit of force downwards is going to help seat it even in a box and can correct for misalignment.

Regarding active placers, we decided that that's also very beneficial. I think someone else in the thread said that there are tradeoffs, but we managed to package an active placer in a volume smaller than many teams passive systems.


In my opinion, I think all the high-level gear bots are going to be able to dump the gear the instant the peg gets in the gear.
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Unread 09-02-2017, 12:48
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Re: Passive vs Active Gearing

Quote:
Originally Posted by Cothron Theiss View Post
I'm actually more interested in seeing how many teams have active systems for retrieving the Gear, not placing it.
We are attempting both an active intake (from the floor or from the loading station) and an active placing mechanism (opening the box and an active push onto to spring). We will see within the next few days how successful these are.
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Unread 09-02-2017, 11:49
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Re: Passive vs Active Gearing

What are we considering the line between passive and active? I can see ours as a "semi-active" as it has small portions of it moving, but the manipulator itself doesn't move.
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Unread 09-02-2017, 12:29
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Re: Passive vs Active Gearing

Quote:
Originally Posted by pmattin5459 View Post
Are there any advantages to an active mechanism for gear placing? The way I see it, it's a very small time gain for a lot of effort, but there may be other advantages.
Quote:
Originally Posted by MikLast View Post
What are we considering the line between passive and active? I can see ours as a "semi-active" as it has small portions of it moving, but the manipulator itself doesn't move.
Seems like an answer in the opening post of the thread.
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Unread 09-02-2017, 13:47
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Re: Passive vs Active Gearing

Is this active enough?
https://www.youtube.com/watch?v=QF1A...ybrkr=223469d5
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Unread 09-02-2017, 13:50
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Re: Passive vs Active Gearing

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Originally Posted by Robomarfa View Post
I'd be wary of such a system, given that G24 exists.

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Unread 09-02-2017, 16:23
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Re: Passive vs Active Gearing

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Originally Posted by JohnFogarty View Post
True, but then you should have automated gear peg alignment
I think you are talking about different sight lines.
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