pic: Wheeled shirt launcher

[Taylor]

Slight resurrection, but I'm curious - has your team moved forward with this project?
We are also looking at wheeled t-shirt launcher designs as an offseason project (and practice for the upcoming American Football game), and there simply aren't many to be found.

[D.Allred]

Originally Posted by Taylor

Slight resurrection, but I'm curious - has your team moved forward with this project?
We are also looking at wheeled t-shirt launcher designs as an offseason project (and practice for the upcoming American Football game), and there simply aren't many to be found.

We built one last year similar to the OP's design with a few key differences. We used a cylinder to push the shirts into the wheels. We also had a pvc pipe on the shooter to keep the shirts straight. There are slots in the side of the pipe for the shooter wheels.

Here's a brief tour of the shooter.
https://youtu.be/SnaXhoxGsy0?t=8m1s

What information do you need?

David

[Taylor]

Originally Posted by D.Allred

What information do you need?

At this point, we are most interested in your launcher wheel RPM and the optimal compression on the shirts. I think we can puzzle through the rest.

[Chris is me]

2791 briefly built a prototype of a wheeled T-shirt shooter in late 2014, and I think they found that marshmallow wheels ("Sure-Grip Drive Rollers" on McMaster, Buna-N) were the best wheels for shooting T-shirts. The compliance helps deal with small variances in shirt packing density or size, and it imparts more energy into the shirts. I would give those a try.

[NWChen]

Originally Posted by Taylor

Slight resurrection, but I'm curious - has your team moved forward with this project?
We are also looking at wheeled t-shirt launcher designs as an offseason project (and practice for the upcoming American Football game), and there simply aren't many to be found.

We (the two of us, no longer our team ) have achieved 60-70ft running 6" Colsons directly off MiniCIMs. Compression is a huge factor. Refer to this thread for more information:
https://www.chiefdelphi.com/forums/s...d.php?t=149446

Video should be up soon, since we'll be at Maker Faire NY this weekend.

[Sperkowsky]

Originally Posted by NWChen

since we'll be at Maker Faire NY this weekend.

See you there! Will be very interested to see what you built in action.

[inorbert]

Took a bit but here is ours, you cannot see where the t-shirt lands but it is about 115 feet away. The front two wheels are each powered by a CIM and the belts in the back are each powered by a Mini CIM. We couldn't keep testing because we lost the key to one of the mini-CIMs and don't have any extras

[NWChen]

One of several videos from Maker Faire. We estimate about 70ft in the air. The compression of the shirt is very important (our best shots were made with very tightly rolled shirts).