Colson Performa Safety

[jnicho15]

Have any teams that use Colson Performas on their shooter mechanism experienced any issues with delamination or other high-speed failures? Our team is considering using the 4x2 hex bore wheels on our shooter at nearly 10,000rpm and are worried about safety issues.

[trumpthero786]

My team used 4x2 Colson Performas and we had no crazy issues with delamination. The only thing i noticed was some wear from repeated ball shooting, but nothing catastrophic. Then again, we were driving them straight off of Mini Cims, so I can only attest to their performance at no more than 6200 rpm. Are you using a geared down 775pro?

[Mattstewie]

We've been spinning ours at about 15,000 rpm and they've held up very well through three events.

[Chris is me]

We used the 2.5" Colsons at 12,000ish RPM for awhile and had no problems. They're among the least unsafe choices at this speed, I think.

[jnicho15]

Originally Posted by trumpthero786

Are you using a geared down 775pro?

A pair of RS-775s (due to supply issues) through a VP dual input and slight chain reduction.

[theawesome1730]

Originally Posted by jnicho15

A pair of RS-775s (due to supply issues) through a VP dual input and slight chain reduction.

I'd be worried more about the chain than the wheels

[Sperkowsky]

Originally Posted by theawesome1730

I'd be worried more about the chain than the wheels

+1

Colson's are the strongest wheels in the FRC game aside from aluminum performance wheels.

But, #25 chain at that speed may have some issues. Personally I would use belts.

[trumpthero786]

Originally Posted by Sperkowsky

Colson's are the strongest wheels in the FRC game aside from aluminum performance wheels.

I really like Colson wheels. How do you think 6 or 8 inch Colsons would hold up in Stronghold? I really wanted them early season, in the design period. Unfortunately VEX only sells up to 4 inchers which are good, but for obvious reasons aren't for this game. I wanted to get these ones or these but it ended up being easier to get traction wheels.

[Sperkowsky]

Originally Posted by trumpthero786

I really like Colson wheels. How do you think 6 or 8 inch Colsons would hold up in Stronghold? I really wanted them early season, in the design period. Unfortunately VEX only sells up to 4 inchers which are good, but for obvious reasons aren't for this game. I wanted to get these ones or these but it ended up being easier to get traction wheels.

I think they would hold up great. Team 271 is using 44 of them http://www.chiefdelphi.com/media/photos/43489

Colson's are meant for some very hardcore industrial applications. For instance I actually spotted them in the wild a few weeks ago while using a equipment mover at my gym. http://www.gymsupply.com/equipmenttransporteraai.aspx
2 of them are built to support close to 1,000 pounds.

If that says anything about how tough they are.

[trumpthero786]

Originally Posted by Sperkowsky

I think they would hold up great. Team 271 is using 44 of them http://www.chiefdelphi.com/media/photos/43489

Colson's are meant for some very hardcore industrial applications. For instance I actually spotted them in the wild a few weeks ago while using a equipment mover at my gym. http://www.gymsupply.com/equipmenttransporteraai.aspx
2 of them are built to support close to 1,000 pounds.

If that says anything about how tough they are.

Oh yes, how could I forget about this great application. Their design removes the issue a robot with a 6, 8, or even 10 four inch wheels in a "normal" WCD style would have in this game. I love it. It's really an awesome piece of engineering.

[Chris is me]

Originally Posted by trumpthero786

I really like Colson wheels. How do you think 6 or 8 inch Colsons would hold up in Stronghold? I really wanted them early season, in the design period. Unfortunately VEX only sells up to 4 inchers which are good, but for obvious reasons aren't for this game. I wanted to get these ones or these but it ended up being easier to get traction wheels.

6" Colsons work great this year. 228 is running a 10WD on all Colsons with no problems. Colsons are particularly good when driving over a variety of surfaces, as they have good general traction on most any surface. That makes them a great fit for this game, really.

The only thing is you need to press fit hubs into them - Vex sells live and dead axle hubs (though check the OD on them before you press them in, they're sometimes too small / big). It's also not hard to make your own aluminum or delrin hubs if you have a lathe.

[C.Lesco]

Pfft only 12 000? We have a PG71 running 1:1 via vex sprockets. 70rpm baby!!!! Had to remove since safety was worried the wheels would fly apart pulling the maximum fasts/hour

[Michael Blake]

Dual everything - 775pro --> 4:1 VersaPlanetary --> 1:1 VEX PRO gears transfer --> VEX PRO hex shaft --> 5"x2" Colson wheel/VEX PRO live hub --> 2.5" compression.

NOT a single problem.

But, I probably just jinxed us...

--Michael Blake

[Sperkowsky]

Originally Posted by trumpthero786

Oh yes, how could I forget about this great application. Your design removes the issue a robot with a 6, 8, or even 10 four inch wheels in a "normal" WCD style would have in this game. I love it. It's really an awesome piece of engineering.

I figure I would clarify I'm not on 271.

[trumpthero786]

Originally Posted by Sperkowsky

I figure I would clarify I'm not on 271.

Oh ha, sorry. I should have looked