Shooter motors?

[StevenB]

What motors did you use on your shooter? I was surprised to see many teams using the minbike and normal CIMS up at the top of their robots. We used the FPs, with a BaneBots 1:5 gearbox to get the power we needed for a lot less weight. We avoided the minibike CIMS at all costs, since they weigh ~5 pounds apiece (If I remember correctly).

[Richard Wallace]

Originally Posted by StevenB

We used the FPs, with a BaneBots 1:5 gearbox to get the power we needed for a lot less weight.

We did the same. I'm very satisfied with the performance of the BaneBots 5:1 gearbox -- thanks again to Joe Johnson for sharing this great find with the CD community.

[Tim Baird]

We wanted to use our FP's for our pickup rollers, so we went with the smaller CIM's with good results.

[coastertux]

Originally Posted by Tim Baird

We wanted to use our FP's for our pickup rollers, so we went with the smaller CIM's with good results.

Team 1640 did the same...although our results were not as good as we expected (but it was due to things other than the motors). However, we did manage to cease up one of the CIM's we used on our shooter .

[Tim Baird]

Originally Posted by coastertux

Team 1640 did the same...although our results were not as good as we expected (but it was due to things other than the motors). However, we did manage to cease up one of the CIM's we used on our shooter .

Wow, how did you cease them? Was your chain too tight, or bad bearings on one of the rotating components?

[coastertux]

Who knows...the motors directly drove the Skyway wheels we used to launch the ball. Here are some pics:
Launcher Before Guards
Launcher After Guards

[Richard Wallace]

Originally Posted by coastertux

Who knows...the motors directly drove the Skyway wheels we used to launch the ball. Here are some pics:
Launcher Before Guards
Launcher After Guards

Sweet guards! What did those colanders cost you, about $1.69 each?

[coastertux]

I believe they were $0.88 each...cheap, light, and simple! We always check Wal-Mart when looking for ideas for robot parts.

[Billfred]

We used both minibike motors on Chomp's shooter. Shot fine for us (and we shot relatively low, which kept us from tipping most of the time).

[Kris Verdeyen]

The 2 minibike CIMS combined with a closed velocity loop on the wheel keeps the cycle time very low, and the CG very high.

[Chriszuma]

One FP motor with a custom gearbox and a chain. Works rather well, and it weighs practically nothing. We originally used the minibike motor to drive our conveyor belt, but the thing weighs more than 5 pounds, so we geared down a FP for that too. Even with the gearbox it weighs several pounds less, and works just as well.