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 "This is the year that everyone on CD is going to learn to spell."
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By: Mike Hendricks
New: 16-02-2005 01:08
Updated: 16-02-2005 01:08
Views: 1099 times
Alright. Here it is .. in all its glory. Powered using the FIRST transmission and CIMS. Lower arm pivots using a custom gearbox and the VD motor. Upper arm moves using the FP and a nice double reduction. The upper arm extends to allow a total stretch of about 13'. At the end of the arm, is a passive claw made from fiberglass and wrapped in thin aluminum.
All thats left to do, is some final wiring of the sensors and motors, bolt the camera box on, and do some programming. Control box is almost done, and the camera code is done. There is feedback on anything that moves - Drive train has encoders on both sides. The telescoping arm has an encoder as well. The 2 arm joints have precision pots on them (little blue things at each end of the arms). Theres also a tetra holder (that the tetra is sitting on .. ) which allows you to hold a tetra. A special thanks to Team 60 for the seminar they did for us and Team 973. Another thanks to team 233 for the inspiration on the telescoping arm. Hopefully tomorrow, we'll post some pictures of it actually moving.
Discussion
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17-02-2005 00:19
jgannon
Re: pic: Team 1388: Done.
This robot is a beast. I got a chance to drive it around tonight, and it goes so fast, yet stops almost immediately, even with the Victors set to coast. The telescoping boom also goes way fast. I can't wait to test all the backdrive protection on the arm motors tomorrow. 
17-02-2005 04:02
Mike Hendricks
Re: pic: Team 1388: Done.
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Originally Posted by jgannon
This robot is a beast. I got a chance to drive it around tonight, and it goes so fast, yet stops almost immediately, even with the Victors set to coast. The telescoping boom also goes way fast. I can't wait to test all the backdrive protection on the arm motors tomorrow.
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http://www.eaglerobotics.com/videos/sparky.wmv - 1.3mb WMV9
By the way - Unoffical name is Sparky .. after the sparks that shot out of one of the CIM victors tonight. Hopefully we'll get some better videos once the thing actually works without letting the arm fall back ..
17-02-2005 04:34
Denman
Re: pic: Team 1388: Done.
nice, and i assume thats a ram at the back to keep it in size requirements?
17-02-2005 12:44
Mike Hendricks
Re: pic: Team 1388: Done.
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Originally Posted by Denman
nice, and i assume thats a ram at the back to keep it in size requirements?
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Originally Posted by Zanella BR
Really interesting design!
What's its speed? |
17-02-2005 12:52
Stu Bloom
Re: pic: Team 1388: Done.
Are you powering the front wheels only? It looks like most of the weight is in the back. How well does it turn?
Nice looking arm design - top section telescoping??
17-02-2005 12:58
abeD
Re: pic: Team 1388: Done.
I think its 6wd..you can't really see it in the picture but in the video im pretty sure i saw some chain connecting the the other wheels to the front one....btw awesome design reliable drivetrain + great looking arm. Good luck with the feedback on the arm we did it on my old team and it really helps alot. (Except when we forgot to recalibrate the pots and the arm went insane... 
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17-02-2005 13:53
Ready_Mix
Re: pic: Team 1388: Done.
Oh yeah, thats my exploding victor!
Although I feel bad about killing that victor, Im glad our bots name is "Sparky" rather than DerFlem or whatever.
and so, after 5 1/2 weeks and one victor, the robot is ready to go.
22-02-2005 16:01
Crebb
Re: pic: Team 1388: Done.
There might be other teams and robots named "Sparky" 
23-02-2005 02:03
jgannon
Re: pic: Team 1388: Done.
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Originally Posted by Crebb
There might be other teams and robots named "Sparky"
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23-02-2005 02:12
Pin Man
Re: pic: Team 1388: Done.
I like the little lip that unfolds... Clever... Nice 6WD too... Can't wait to see it in action!
23-02-2005 02:19
Mike Hendricks
Re: pic: Team 1388: Done.
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Originally Posted by Zanella BR
What's its speed?
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And it is no longer Sparky (for a short time it was also called smokey, because of those wonderful FP motors). It is offically named "Ratchet" (as Joey said already)
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