16-08-2005 02:16

sanddrag

Re: pic: Team 100 CALGames Robot

I like it. Looks like a very rigid arm structure and a very effective setup. It seems like you will be doing multipositioning with the pneumatics so I assume the compressor will be running full time. Is that a motor in between the pneumatic cylinders? If so, what is it for?

Also, it looks like you are doing a 6 motor drive. Big thumbs up to that!

I'm curious as to why the double wheels? To be sure you are applying the power of that 6 motor drive?

PS. Is this thing built yet?

16-08-2005 02:24

NoodleKnight

Re: pic: Team 100 CALGames Robot

The arm is actually an interesting setup. The vandoor motor drives the arm via chain & sprockets, and the pneumatics drive a cam which also drive the arm -- in short it's a motor powered, pneumatic-cam assisted arm.
And yep, the double wheels are to get as much traction as possible.

So far the transmissions are about 95% built.

16-08-2005 02:50

mechanicalbrain

Re: pic: Team 100 CALGames Robot

I like it alot, especially the way each side has its catamaran wheel setup (never was partial to rectangles). Im wondering about pneumatics though. I try to stay away from them because of weight, lack of fine control, air leakage, (even on the best system you get this), and the potntial damage of a tube getting snagged. Unless their is a specific reason you want to use them i would say stick to motors. Is it possible to do a close up of the wheel assembly? I would love to see it! Nice work.

16-08-2005 03:18

Cory

Re: pic: Team 100 CALGames Robot

My guess would be because they only have two window motors, the van door, and a globe to work with.

It already needs pneumatics to shift, so they can't avoid the weight penalty of the accumulators or compressor, anyways.

16-08-2005 15:06

Veselin Kolev

Re: pic: Team 100 CALGames Robot

Cory is right. We decided to do it the simple mechanical way, difficult control way. It will take quite a few sensors and soleniods to control this, but it is just tedious, but not overyly complicated. And I'm not the programmer, thank god.

As for those interested in specs:

High: 15 fps
Low: 8 fps
12 skyway 6" wheels with wedgetop tread, riveted on
Chassis: 1x1 .125" wall all around
Arm support: assortment of 1x1, 2x1, 3x1, all .125" wall
Arm: 2" tubing, .125" wall
Armor: .125" aluminum plating, all around
Motors: 4 CIMs, 2 FPs, 1 van door
Pneumatics: two 6" stroke, 1.5" bore, one .5" stroke, .75" bore
weight: 110 lbs (without battery)

16-08-2005 15:52

sanddrag

Re: pic: Team 100 CALGames Robot

6 motor two speed? Shweeet! I have GOT to see this once you get some pics. I sooo wish we were going to Cal Games, it would be a perfect matchup for our HexaMax 6 motor 2 speed drive.

I'm glad someone else was crazy enough to make one this year.

Yours looks pretty small/light. Are you doing an additional chain reduction outside the box or is it all in the box?

PS. When/where is Cal Games going to be anyway?

16-08-2005 17:12

NoodleKnight

Re: pic: Team 100 CALGames Robot

Yep, there's a pretty large chain reduction from the gearbox to the wheels (12:60).
Also, torque figures: about 107lb-ft in low, 67lb-ft in high.

And I think Cal games might not be happening
Maybe I can make the team go to an SCRRF off-season event.

18-08-2005 03:45

TimCraig

Re: pic: Team 100 CALGames Robot

Unfortunately, the smart money has it that CalGames has slid into the dumper this year. There's still a possibility that there will be something short of a full 2005 FIRST competition.