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Team 73 2007

Greg Needel

By: Greg Needel
New: 21-02-2007 20:05
Updated: 21-02-2007 20:05
Views: 1741 times


Team 73 2007

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21-02-2007 21:23

Alex Cormier


Unread Re: pic: Team 73 2007

hmmm. looks good greg.



21-02-2007 21:25

jade_team_73


Unread Re: pic: Team 73 2007

I love that thing it works great and it was a great build season



21-02-2007 23:16

Justin Montois


Unread Re: pic: Team 73 2007

We were happy to have you guys around, We wish you the best of luck at FLR.



21-02-2007 23:19

Starke


Unread Re: pic: Team 73 2007

It was an honor to work with you guys. I hope that you have a very sucessful year!

Matt Starke

p.s. I hope your frame holds up



21-02-2007 23:38

Jeremytice


Unread Re: pic: Team 73 2007

Looks great you guys...cant wait to see it and good luck!



22-02-2007 00:12

Greg Needel


Unread Re: pic: Team 73 2007

Thanks for all the encouragement guys, alot of you know the issues we were faced with this year and appreciate all the help we were given by the other local teams. See you all in a couple weeks.



22-02-2007 08:10

Ben Piecuch


Unread Re: pic: Team 73 2007

Greg, can you tell us a bit about your elevator and wrist setup? The elevator looks like a continuous cable pulling on 3 stages. Fabrication seems to be box aluminum with some custom bearings?

The wrist (shown in your previous teaser ) looks like it's driven off a globe, with a 3 or 4:1 ratio? I'm also assuming that the elbow is powered on a pneumatic, though I can't see anything from the picture.

If you put a little orange on that 'bot, I'd say that you copied our design. Or, if our's was blue, vice-versa! Excellent looking 'bot, I hope to get a chance to watch it this year!

BEN



22-02-2007 11:14

Greg Needel


Unread Re: pic: Team 73 2007

Quote:
Originally Posted by Ben Piecuch View Post
Greg, can you tell us a bit about your elevator and wrist setup? The elevator looks like a continuous cable pulling on 3 stages. Fabrication seems to be box aluminum with some custom bearings?

The wrist (shown in your previous teaser ) looks like it's driven off a globe, with a 3 or 4:1 ratio? I'm also assuming that the elbow is powered on a pneumatic, though I can't see anything from the picture.

If you put a little orange on that 'bot, I'd say that you copied our design. Or, if our's was blue, vice-versa! Excellent looking 'bot, I hope to get a chance to watch it this year!

BEN

Ben you are close... but I will enlighten you further. The elevator is 45mm Bosch extrusion which is a cascading cable system with the first stage driven by chain (there are actually 6 different cable sections which enable driven motion up and down). The end effector has a wrist (yes that was the teaser) driven by a globe motor on a ~3:1 reduction via chain over a dead axle. The 90 deg rotation of the arm upwards is driven by a globe motor directly driving the axle of the gripper. The grabbing mechanism is driven by a pneumatic cylinder completely mounted within the gripper. All in all it gives us 4 axis of motion on the arm and 5 degrees of freedom when you count the drive train.

These are some other photos of the mechanism from a week or so before ship but it will give a better view of the arm.

http://www.team73.org/ideas/2_11_07d.jpg
http://www.team73.org/ideas/2_11_07b.jpg
http://www.team73.org/ideas/2_11_07c.jpg
http://www.team73.org/ideas/2_13_07c.JPG



23-02-2007 12:36

jade_team_73


Unread Re: pic: Team 73 2007

As Greg said thank you all for the encouragment and thanks especially to our fav teams the G.R.R twins thanks much to every one....Jared "Jade" Walker



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