Day 13. Jan 21, 2016

Many useful things were done today:

The prototype shooter was recreated in a nice and neat manner so we can test different things. A lot was done here.

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This adjustable shooter prototyping helped us tune this to the right speed (by changing the sprockets on the top) and the right compression (there are many holes to change the wheel distance). Taken from 2848 this helped us get our perfect shooter design (speed/compression):

Here is the shooter in action:
First the shooter had a 12 to 26 sprocket ratio to give us a much higher speed about 10700RPM:

Because this did not go far enough there are 2 things we needed to change. The speed and the compression so we went to a slower speed (to get less slip???):

Now to get it even better we increased the compression by about an inch. Here is the final result:

I am now wondering whether we should go back to the faster speed with this compression and see what that does….

The 8 wheel drive train is continuing to be CADded:

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Currently we just took 1114’s gearbox from 2014 beacuse its low profile. It is a little wider than the other gearbox we are thinking of using (the WCP 3 cim shifter). We are going to put it all together with both in CAD and see which one we like more. Also to keep in mind this one has a 5ft per second and 12 ft per second. The WCP 3 cim has a 9 and 15 so it is faster than this one.

Test Bench/West Coast 6 wheel Drive train

The drivetrain (west coast with chain inside the tube) was finally finished (we made a belly pan to hold the electronics, wired the electronics, and added a battery tray) and driving:

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We put a little ramp on the front to help go over the rockwall. This drive train is going to be our test bed for everything else. WE will put the shooter on here and the intake and all other components while we are CADding the other drive and while it is being cut. Here it is in action:

The collector has kind of been forgotten but we are going to start CADding it and the shooter tomorrow and saturday.

Posted in FRC Blog.