2386 prototype shooter

I think you'll notice a bit of an erratic spin difference between different launch speeds with the static bar. My team is doing something similar, but with two sets of wheels, one on the top and one on the bottom so we can control spin if needed.

Nice job.

[Chris is me]

Originally Posted by ThaineP

I think you'll notice a bit of an erratic spin difference between different launch speeds with the static bar. My team is doing something similar, but with two sets of wheels, one on the top and one on the bottom so we can control spin if needed.

Nice job.

With a longer ball path, you can put more backspin (or topspin if you have an inverted shooter) on the ball. Simpler than software!

[Tazlikesrobots]

Nice shot

[kinganu123]

In terms of the cim-u-lation, wouldn't torque play a factor, because those motors, even with the gearbox, have a nominal amount of torque

[Siri]

Definitely a nice start! How far was that?

[WileyB-J]

Originally Posted by Dr Theta

I'm kind of curious what the weight of that flywheel is. That is some impressive distance. I really like the simplicity of this prototype.

Nice eye! Its just an aluminum disk, no real measurements thus far.

Originally Posted by Mk.32

My question(s) how long does that take to spin up?
And how many balls can you feed though it before it slows down significantly?

It takes around 3 seconds, and you can feed at least three with the same trajectory (haven't been able to test more!).

Originally Posted by ThaineP

I think you'll notice a bit of an erratic spin difference between different launch speeds with the static bar. My team is doing something similar, but with two sets of wheels, one on the top and one on the bottom so we can control spin if needed.

Nice job.

The problem with two sets is the inconsistency in speed/entry for the balls entering the shooter.

Originally Posted by Siri

Definitely a nice start! How far was that?

A good 30 something feet.

[WileyB-J]

Update!

Time to get rid of the SIM, shame you can only have 4..
New custom transmission with a RS-775:


Just a first run gearbox, the final one will be lighter and look pretty.

[TEAMROCK2000]

Why is there a fly wheel on there and what does it do?

[WileyB-J]

Originally Posted by TEAMROCK2000

Why is there a fly wheel on there and what does it do?

Its used to maintain wheel speed when a ball comes in contact with the launching wheel.

This may help: http://en.wikipedia.org/wiki/Flywheel

[andrewthecow]

How is the CIM connected to the axel the wheels spin on and how is the axel connected to the wheels?

[WileyB-J]

Originally Posted by andrewthecow

How is the CIM connected to the axel the wheels spin on and how is the axel connected to the wheels?

A whole lotta set screws.

[pfreivald]

Oooh, set screws are evil! Embrace the spring pin...

[Taylor Hawkins]

Originally Posted by kinganu123

In terms of the cim-u-lation, wouldn't torque play a factor, because those motors, even with the gearbox, have a nominal amount of torque

The Cim-U-lator that we made is a 3.33:1 ratio and actually gives us a torque rating of 375 oz-in compared to the cim of 344oz-in. So its actually pretty close to the CIM itself.

[WileyB-J]

Originally Posted by Taylor Hawkins

The Cim-U-lator that we made is a 3.33:1 ratio and actually gives us a torque rating of 375 oz-in compared to the cim of 344oz-in. So its actually pretty close to the CIM itself.

its 3.6:1 hawkins.. (50T&14T)

[Taylor Hawkins]

Originally Posted by WileyB-J

its 3.6:1 hawkins.. (50T&14T)

Your right my mistake. The numbers are off then.

Also if anybody would like the cad drawings for the gearbox let me know and il send it to you.