217+229 = “Division By Chicken”
Meet Denominator’s fraternal twin Thor.
They are good friends, and can’t wait to play together this weekend.
Division By Chicken… haha
How did the long distance collaboration work out?
Two beasts competiting in the same regional. I smell trouble…
Good luck to team 229 and 217.
… This is what happens when your team is mentored by JVN and Paul Copioli, two good friends. (I take my other quote back in the other thread).
It was an awesome experience working with the Thunder Chickens. There were some small bumps along the road, for example 217 is all in metric and we(229) work all in English. But we over came these minor obstacles to create the robots you see before you. Thanks again to Paul Copioli and the rest of 217, they really made this dream of ours a reality.
JT
229
P.S. “Division by Chicken”, I love it!!! 
Nice job guys, both bots look like fierce competitors.
These two robots are both great. The drives are strong and smooth, while the arms appear to be robust and reliable.
That vertical extension on the arm is impressive. I would like to see the guts of that. How much vertical travel do you get?
One of the highlights of the Finger Lakes Regional will be seeing these two teams next to each other in the pits. You guys gotta post a picture of that setup.
As for names, you made a good choice. Division by Chicken is much better than ThunderZero.
Andy B.
Yeah, think of what people would have thought if 254’s bot had been the “Cheesy Bulldog” instead of the “Bionic Poof” :yikes:
i love the name and the bots but you should fix your photo because the way it reads is chicken divided by zero 
Appx. 28 inches vertical travel.
If I don’t do it first, I’m sure someone will post that pic. It will be eggstraordinary! What an eggsiting event we’ll have. I hope that John and Paul don’t get inflated eggos from this thread, though.
Which leaves only one question: Which will come in #1st? The Chicken or the Egg?
Edit: By Egg, I was insinuating “Zero” - DS
Which leaves only one question: Which will come in #1st? The Chicken or the Egg?
-Ibeleive as a mate from 229 it would be “the chicken or the zero” :yikes:
very cool guys, both great looking bots. Cant wait to see them in action!
I guess I’ll be the one to give the vital stats:
**Drive bases ** - completely separate designs with no collaboration between the two teams. I’ll let 229 describe theirs, but our drive base stats are as follows: Six wheel, six motor drive no shifting using the 4 CIMs and 2 FP motors with a top speed of about 9 ft/sec. The entire drive base structure is made from 1.3mm thick aluminum sheet metal. The design is much like that of an aircraft fuselage with all sheet metal components riveted together (111 inspired). Two free wheeling 128 counts/rev encoder wheels are used for navigation. We can get position and angle from these two encoders. The pump, drive transmissions, wheel bearing housings, drive victors, pump relay, power distribution, and battery are all housed within the drive base.
Tower assembly (stationary part) - Concept co-developed by both teams, but design details for the sheet metal were completed by 217. The actual fabrication was done by 217’s sponsor. Again, all the sheet metal is riveted together. Pneumatic gauges, Clippard tanks, solenoids, spikes for solenoids, victors for the vertical lift, and the vertical lift motors are all housed on the tower. The vertical lift concept was developed by 229. 217 uses the two window motors with a chain drive for the vertical lift. 229 uses the Van door motor with one FP assembly and a cable drive. This difference was due to team preference (217 really likes the window motors and 229 really likes the van door motor).
Vertical lift (a.k.a. shuttle) - Concept developed by 229. Shuttle construction details refined by 217. The shuttle construction is modeled directly after an aircraft wing made from 1.3mm thick aluminum sheet metal. The vertical lift slider bearings usage was a 229 idea that was implemented to the sheet metal concept. The stationary stage of the linear bearings are riveted to the tower and the last movable stage is riveted to the shuttle.
Four bar arms and drive - 217 concept with 229 and 217 sharing the design details. One kit transmission modified for use with the Globe motor is used for the arm drive. The lower arm is direct drive from the output shaft of the kit transmission. Arms are made from PVC pipe (217 uses 1.5" and 229 uses 1.25") with a gas shock as a balancer. Both arms are perfectly balanced for one tetra.
Tetra Grabber - 229 concept with each team doing separate detail design. 2" cylinder with a 7" stroke was used for both designs. Pieces mostly made from PVC pipe (Team 71 inspired).
It was a very good experience for me and my students because 217 and 229 had such different design biases and backgrounds. We collaborated on what we could agree on and did our own thing on items we knew both teams would not compromise. The end result was two very similar robots with their own personalities.