Just a preliminary test on a prototype, should be a fun year!
very nice! but are you willing to sacrifice a cim motor for your shooter?
Hell no! Its rather easy to “make” a cim and we plan on doing that! Just a first run with an idea.
Thats one big issue with using a cim motor for ball tossing. As of rule [r38] it limits the robot to olny 4 cim motors. Thats why my team is trying to use pneumatics for launching the ball to the hoops. Still looked very good. Nice job.
I like it but does it only have a single degree for aiming?
Nope! Still have a few cards on my chest!
There are CIM-ulators and CIM-Sim gear boxes that allow you to use a “5th CIM” but it’s just a rs-775 or a FP with a gear box. It does give you the same output RPMs of a regular CIM.
You are correct! Run a 775 at a 2.7:1 ratio and bam! Cim-u-lation.
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.
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?
^ This.
Because, am I seeing correctly that you are driving the wheels directly off the CIM? :ahh: Certainly not totally ridiculous, but I would expect it to have a little more trouble accelerating the ball than is observed.
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!
Nice shot 
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
Definitely a nice start! How far was that?
Nice eye! Its just an aluminum disk, no real measurements thus far.
It takes around 3 seconds, and you can feed at least three with the same trajectory (haven’t been able to test more!).
The problem with two sets is the inconsistency in speed/entry for the balls entering the shooter.
A good 30 something feet.
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: Flywheel - Wikipedia
How is the CIM connected to the axel the wheels spin on and how is the axel connected to the wheels?