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  #41  
Old 05-05-2012, 09:09 PM
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Re: 4886A Sack Attack Progress (VT Design)

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Originally Posted by Disciple855 View Post
That makes alot of sense. I can't believe I didn't realize that myself. I guess me being on a college team in Maryland, when I read "VT" I think of Virginia Tech.
Haha, yeah... :P
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  #42  
Old 05-06-2012, 08:25 AM
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Re: 4886A Sack Attack Progress (VT Design)

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Originally Posted by Owen View Post
Yes, we are using H-dive so that we can take advantage of the planetaries. As for the hopper, we havn't tested that much, but I am thinking of some sort of ramp.
you are my favirote we are using a h frame as well
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  #43  
Old 05-06-2012, 11:46 AM
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Re: 4886A Sack Attack Progress (VT Design)

I'm thinking performance would increase from the feeder if the speed was increased. Also, spacing the feeder from the metal would prevent excess friction.
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  #44  
Old 05-06-2012, 03:05 PM
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Re: 4886A Sack Attack Progress (VT Design)

Great design, and thanks for trying to help out the rest of us. however, I think you may be using too many high strength motors for your robot, which can cause issues with the motors tripping. I wouldn't put more than 6 393's in.
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  #45  
Old 05-06-2012, 03:13 PM
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Re: 4886A Sack Attack Progress (VT Design)

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Originally Posted by ifticar2 View Post
Great design, and thanks for trying to help out the rest of us. however, I think you may be using too many high strength motors for your robot, which can cause issues with the motors tripping. I wouldn't put more than 6 393's in.
We are using 8, and its possible because we won't be able to use the actual 8 motors at the same time. With 4 on front and back, and then 2 on the strafe and 2 more on the lift, then we will only be using only 2-4 at a time.
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  #46  
Old 05-06-2012, 03:15 PM
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Re: 4886A Sack Attack Progress (VT Design)

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Originally Posted by tutman96 View Post
I'm thinking performance would increase from the feeder if the speed was increased. Also, spacing the feeder from the metal would prevent excess friction.
If we increase the speed then the sacks get stuck. Well also, the intake will be in front of our lexan table, so we can't really test anymore until we get that. But also remember our intakes always raise up when they intake.
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  #47  
Old 05-06-2012, 03:17 PM
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Re: 4886A Sack Attack Progress (VT Design)

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Originally Posted by ifticar2 View Post
Great design, and thanks for trying to help out the rest of us. however, I think you may be using too many high strength motors for your robot, which can cause issues with the motors tripping. I wouldn't put more than 6 393's in.
Well a power expander fixes this as well. I had all ten motors on two breakers and one battery, 6 on two and 4 on one breaker sounds like it should work out, even with 10 393s
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  #48  
Old 05-07-2012, 07:37 PM
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Re: 4886A Sack Attack Progress (VT Design)

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Originally Posted by Hason View Post
Well a power expander fixes this as well. I had all ten motors on two breakers and one battery, 6 on two and 4 on one breaker sounds like it should work out, even with 10 393s
Redefine that razor's edge, hahaha. I'm personally quite leery of that much current draw after high strength experiences this year.
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  #49  
Old 05-07-2012, 07:42 PM
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Re: 4886A Sack Attack Progress (VT Design)

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Originally Posted by tutman96 View Post
I'm thinking performance would increase from the feeder if the speed was increased. Also, spacing the feeder from the metal would prevent excess friction.
Quote:
Originally Posted by banditofernando View Post
If we increase the speed then the sacks get stuck. Well also, the intake will be in front of our lexan table, so we can't really test anymore until we get that. But also remember our intakes always raise up when they intake.
How about a planetary gear to adjust the speed/torque?

In all seriousness, it all depends on what structure you have. If you have an elastic force pushing down on your intake, then torque might be the way to go. If it's stationary, then 1:1 or speed might work better.
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  #50  
Old 05-07-2012, 07:45 PM
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Re: 4886A Sack Attack Progress (VT Design)

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Originally Posted by IGC_Alinator View Post
Redefine that razor's edge, hahaha. I'm personally quite leery of that much current draw after high strength experiences this year.
It really depends how many motors you use simultaneously and how much stress you put on them.
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