This is where we keep record of our designs for our robot.
Gripper: for the gripper, we came up with a design using one motor. There is a motor driving a gear, which in turn drives 2 other gears perpendicular to the base of the robot. Those 2 gears in turn close the gripper. The gripper will probably be made out of wood or PVC and would optimally have rubber bands on the end for friction.
Tank: for the storage tank, we came up with an idea with parallel troughs. The two troughs lead down to the storing bin, and the distance between the 2 troughs are a little more than the diameter of the seeds. There will be a funnel under the troughs with an “airlock system” that enables the seeds to come out one at a time. In this way, if a seed is dropped in the troughs, it will go right through them, but if a tomato or corn is dropped down, it will roll along the troughs to the storing tank.
Caster: for the castor, we plan on attaching a golf ball to a PVC pipe that is held on with bearings. This castor will help us balance our robot, and it will run smoothly against carpet compared to a wheel that is not attached to a motor. The castor does not have a motor attached to it.
Update on caster 10/7
So, we’ve made changes in the design (Thanks Westwood! You guys are the best!) Now, the current design of the caster is now PVC pipe skids.
Bin: our bin isn’t a complex design. It’s just a cardboard box. The box has 4 pillars to hold it up. One pillar is lower than the other pillars so that the seeds can fall through a little hole on the side of the box that’s meant for planting seeds. The bin also holds our corn. In front of the bin, there is door that is held back by rubber bands. When the bin tips over into the actual corn bin on the feild, the door opens up by all the weight pushing down on it, and the corn falls out.