[Partiot Force]

Thanks for the responses. Unfortunately, I am at home right now so I can not take pictures of the robot. I will try and do so tomorrow and post what we come up with. I thought of using either the 2.5 CIM motor and we also have a mini CIM motor.

I reread rule 34 and can see a little gray area there where we could use the spring. I'm curious how we could make the winch lift and lower the goal post.

I'm thinking of making a pulley myself out of wood, say a 2-1/2 circle made out of oak and then two 3" circles out of thin plywood and gluing them together. I could bevel a hole on the outside edge of the inner circle before gluing everything together. I would then file a slot on the inside bore for the 2mm key and make the inside bore a press fit onto the output shaft of the motor.

The reason why fabrication is difficult is that this is our first year with no experience and very, very limited tools and materials.

The pneumatic system sounds interesting but I have no experience with it. A winch makes sense to me even if its more work. However, I am going to look into the pneumatics, thanks.