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View Full Version : pic: 222 Teaser

team222badbrad
26-01-2011, 08:31
[cdm-description=photo]36161[/cdm-description]
548swimmer
26-01-2011, 08:33
Looks great! Are you sure the plastic will hold up under the torque? Also, it looks like the top gear doesn't quite line up, is this because of the camera agnle?
Chris is me
26-01-2011, 09:18
I have a feeling it's a plastic prototype.

Not exactly certain how it works but hey, looks cool and apparently shifts!
Brandon Holley
26-01-2011, 09:23
I have a feeling it's a plastic prototype.

Not exactly certain how it works but hey, looks cool and apparently shifts!

I'm guessing its another iteration of the famous 222 ball-lock trannys they've been pumping out for years. This is obviously a prototype as well.

-Brando
MrForbes
26-01-2011, 09:34
the cutaway frame section is really neat looking.

Nice work!
MagiChau
26-01-2011, 10:48
Looks like a cool design for a 2 speed transmission.
Sunshine
26-01-2011, 10:51
Don't ya' just love 3D printers and what they can do? Great Job!
Nick Lawrence
26-01-2011, 15:42
Nice work guys. Looking forward to seeing the real deal at Pittsburgh.

-Nick
team222badbrad
26-01-2011, 21:39
Thanks for all the positive remarks.

This will not be used in competition, but it does actually shift. The problem is part strength and plastic spinning on plastic creates a melted pile of plastic.

Nick 222 will only be attending Boston and possibly Championships.

We have been making these transmissions since we introduced our three speed in 2004.

This year we are experimenting with springs outside the transmission rather than having them directly on the shifting plunger shaft.

squirrel you are correct that is a cutaway of a 3x5" tube.

Enjoy this video:

http://www.youtube.com/watch?v=rj6naPPiQOw
s_forbes
27-01-2011, 01:16
Super super awesome! This is definitely one of the best innovations I've seen from a FIRST team... I loved it when I first saw the concept several years ago, and I love it even more seeing the new arrangement you've come up with.

Will you be using a metal version of this gearbox on your robot this year? If you make it there, I'll definitely be visiting your pit at champs to check this thing out.
Akash Rastogi
27-01-2011, 01:27
Yet another sick gearbox from 222, very awesome. What's not awesome- you are not going to Philly this year. </3 :(
Brandon Holley
27-01-2011, 10:22
What's not awesome- you are not going to Philly this year. </3 :(

Cause they're coming to Boston instead. Boom.

-Brando
team222badbrad
04-02-2011, 03:53
Speaking of BOOM!

http://www.facebook.com/pages/Tunkhannock-Tigertrons-222/170934087339?v=app_2392950137&ref=ts#!/video/video.php?v=10100649965351114&oid=170934087339&comments
Nick Lawrence
04-02-2011, 09:13
Nick 222 will only be attending Boston and possibly Championships.


*disappointed face*

-Nick
thefro526
04-02-2011, 09:15
What are the specs on the 8WD in the video?

It looks like it handles really well.
team222badbrad
04-02-2011, 13:35
What are the specs on the 8WD in the video?

It looks like it handles really well.

What specs would you like to know that are not on the video?
thefro526
04-02-2011, 13:39
What specs would you like to know that are not on the video?

Wheel base, offset, wheel size, floor speed?

I'm just asking because the point of rotation looked a bit rear biased where most 8WD's I've seen seem to rotate around the center.
team222badbrad
04-02-2011, 13:49
Wheel base, offset, wheel size, floor speed?

I'm just asking because the point of rotation looked a bit rear biased where most 8WD's I've seen seem to rotate around the center.

Wheelbase is approximately 25".

Zero offset.

6" AndyMark Omni and Plaction wheels.

14 FPS and 5FPS

All the weight is in the back. ::ouch::