Saturday

Week 2


Keith made a Sketch-Up of a complete model.

From Aaron: This is a great attempt to incorporate many promising design elements of high interest to us.  It includes a floor level disk pick up (dust pan and roller), and a hopper for accepting disks from the feeder wall slot.  All discs enter a tall hopper stack where they are lifted vertically and loaded horizontally into the launcher.  It also has a concept for lifting the robot on the pyramid.
Of course, many details need to be fleshed out, but this is certainly helpful.

For a Harvester, we have come up with this...


From Scott: The length can be adjusted, but it's good to know that the mechanism can be inside the fram a bit. If the delivery end of the harvester is not too high, we can probably shorten the length of the conveyor. Michael and I were worried that the angel of the conveyor was going to get too steep if it was short. That's also one of the reasons we were entertaining the idea of a suction cup (Venturi) mechanism. No conveyor, but a straight lift and load.



Mechanisms can be compacted or scooted into the frame so as not to stick it out too far. We will try to integrate this idea in a meeting later.


Also, we are thinking about aiming for the long frisbee throw. Here is a Sketch-Up of what it would look like:


With the robot in one of the possible launch positions the shot at the upper goal is 38.5 feet, with a 10.6 degree climb from 20 inches above the floor to 8ft. 6inches at the goal.

Week 1

     Today Nolan and his dad brought in a polar shooter prototype we build and tested at home. It performed great with the stiffer game disks (compared to the one we have at home). However, it uses a bicycle wheel which is pretty bulky. They then continued construction on another polar mechanism using a smaller 8" wheel. They hooked that up to a CIM and tested it for a while. Results were pretty good with this new prototype but improved even more so when Mr. Herbert camped on a strip of rubber wheel treads to the curved guide (something important to note for further construction).