pic: Killer Bees Team 33 Teaser

Eric Yahrmatter · #1 11-02-2010, 22:26

Stephen Kowski · #2 11-02-2010, 22:27

kicker pull back? possibly power a winch? either way I'd bet those anti back drive pins are still in that dewalt

Andrew Schreiber · #3 11-02-2010, 22:29

Nice to see the Bees are hanging Eric. Let's have some more details. Standard TB and standard NBD transmission on the CIM? (3/4/12) Locked in 1st gear? 36:1 reduction? If I recall there are back drive pins which I assume you left in place.

Knowing the bees this is for some sort of arm. Turreted?

Eric Yahrmatter · #4 11-02-2010, 22:37

The Dewalt is in 1st gear, and after the Toughbox, we end up with a 153:1 reduction...I wonder what this is for...hmmm

daltore · #5 12-02-2010, 03:36

Looks like what we were about to make tonight when our arm didn't pull the robot up. Then we just unjammed the arm

Bigger sprocket is working wonders too, lifted me up no problem in a power test. Scary as all get out...

Something very slow with a ton of torque... Forklift?

billbo911 · #6 12-02-2010, 09:22

Following Dr. Joe's example , this set up should provide 34,780 Oz-in. of stall torque at about 35 RMP.
With 180 Lb-Ft of torque, lifting a robot is an easy proposition.

Kevin Sevcik · #7 12-02-2010, 09:34

Definitely makes for easy lifting if potentially... sedate. Given that a 153:1 gear down leaves your end effector turning at about 35 RPM. At 2 seconds per revolution, one would hope you're not planning on needing more than one revolution to complete a lift....

Bruceb · #8 12-02-2010, 09:39

Where do you get the dewalt transmissions? Do you have to buy a whole drill?
Bruce

Eric Yahrmatter · #9 12-02-2010, 12:40

Quote:

Originally Posted by Bruceb

Where do you get the dewalt transmissions? Do you have to buy a whole drill?
Bruce

You do not have to buy the whole drill. Dewalt parts can be purchased here:
http://www.dewaltservicenet.com/Products/DocumentView.aspx?productid=75463&typeId=19037&doc umentId=37924

You will need items 42 (outer case) and 61 (transmission assy) to get this to work. Follow the instructions in the Nothing But Dewalts whitepaper:
http://www.chiefdelphi.com/media/papers/1592

Total cost for the transmission parts is $122.95. I have seen it cheaper elsewhere in the past though.

daltore · #10 13-02-2010, 01:52

We've somehow found a source for $55 DeWalt drills (the whole thing minus the batteries). I think. I'll ask our mentor tomorrow if you'd like.

Mr.G · #11 12-02-2010, 09:40

I think they are planning on lifting there whole alliance.

sanddrag · #12 13-02-2010, 05:29

Quote:

Originally Posted by Mr.G

I think they are planning on lifting there whole alliance.

Remember guys, power equals work over time. Losses neglected, any motor can move any load, it's just a matter of time.

Bruceb · #13 15-02-2010, 11:02

daltore, Yes if you could find a better price that would be great.
Thanks
Bruce

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