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  #16   Spotlight this post!  
Unread 02-21-2004, 09:05 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

My team chose to use the seat motor with a 2:1 gear reduction, works perfectly, a little slow though, but it's not comin down after we're up there
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Unread 02-21-2004, 09:12 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

The first picture shows the motors (I drew in arrows to show you which two out of the three drive the bar) and the othe picture kind of shows you the pully system on the bar (its the best picture I have at the moment or the system).

The last picture is us hanging from the bar at the end of the match.
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Unread 02-21-2004, 09:15 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

Alot of people seem to forget that you can use any motor depending on how you gear it. Alot of people also seem to forget that you don't have to lift yourself 9ft in the air. a cm or so will do. Why does speed really matter in this case. If you can lift yourself 1 cm in a few secs why does it matter as long as you are hanging. Perhaps i am missing somethign here.
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Unread 02-21-2004, 09:19 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

we are using the same vandoor motor that lifts our arm to lift the bot. it can pull the robot ALL the way up, but we probably wont. its a pretty powerfull little motor
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Unread 02-21-2004, 11:06 PM
OneAngryDaisy OneAngryDaisy is offline
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

aight.. i don't really want to disclose all our information, but we're using a combo of 3 motors to hang. two were designed to multitask performing another function then getting us up there, and the third is our winch (window). All i can say is it takes us a second to get up there- literally. and not just on the platform or steps too (i actually shot something through the ceiling when i misgeared a motor)
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Unread 02-21-2004, 11:10 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

Quote:
Originally Posted by OneAngryDaisy
and not just on the platform or steps too
You got my attention. I want to know more. I guess I will just have to wait. Such a teaser of a statement. I've been wanting to see who would take the challenge of lifting themselves without being on the platform or first step.
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Unread 02-21-2004, 11:15 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

i'll ask my mentors if I can upload a picture of it tomorrow... even a short movie to accompany it..

[edit] hint: think Diablo 2002 or Beatty/Brazilian Machine 2003 [/edit]
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Unread 02-21-2004, 11:20 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

Quote:
Originally Posted by OneAngryDaisy
i'll ask my mentors if I can upload a picture of it tomorrow... even a short movie to accompany it..
If not upload, I could make a PM trade on the agreement no one else would see. You wouldn't have a chance to see our bot til championships and I would still like to see how it works. I don't have team permission to upload pictures even though I think we should. But I can make private trades. I know it seems sneaky but I have no say.
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Unread 02-22-2004, 12:28 AM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

Okay, well back to my question and problem

We have a wench style system, with a van door motor driving the pivot arm and a fisher price motor with the plastic gearbox to drive the wench. When we attempted to pull using only the wench we were able to get half of the base off the ground before the motor started smoking, and we do not currently have a locking system of any sort to keep it suspended in the air.

We tried using the window motor to hoise ourselves with the pivot but that did not work either.

I believe we are making a different size wench and probably switching the fisher price motor.

If you ahve any more comments, suggestions, or questions i'd appreciate it with the crunch on time.
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Unread 02-22-2004, 12:41 AM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

You can reduce the size of your winch. If you are using the winch with the fisher-price it might not be enough.
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Last edited by ngreen : 02-23-2004 at 12:24 AM.
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Unread 02-22-2004, 01:06 AM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

We were going to use a big wench to pull us up onto the bar. But that led to imagining ourselves in scenes from bad English Robin Hood movies, and pretending to be brawling Musketeers, and playing Renaissance Faire, and thinking all sorts of bawdy thoughts, and then she got really upset with the whole idea of wearing that silly corseted costume...


So instead we got back to working on the robot, and developing a winch system to reel us up off the ground.

-dave

(sorry, I just couldn't resist )
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Last edited by dlavery : 02-22-2004 at 01:13 AM.
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Unread 02-22-2004, 02:28 AM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

Motors... Well, since the compressor is defined as a motor, then maybe.
Sort of I guess...
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Unread 02-22-2004, 10:06 AM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

Quote:
Originally Posted by OneAngryDaisy
All i can say is it takes us a second to get up there- literally. and not just on the platform or steps too (i actually shot something through the ceiling when i misgeared a motor)
You have verified that you meet the 10 ft/sec rule, right?
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Unread 02-22-2004, 01:39 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

Speed will matter, but very little though. Speed will be an issue during the last seconds of the game.
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Unread 02-22-2004, 08:54 PM
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Re: Is Anyone Using Motors to Hoist themselves off the platform on the bar?

we are using a globe motor... the arm looks great...
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