CRANK SLIDER The Crank Slider Prototype that we are working on this quarter will be an expansion on the prototype last quarter. Not only are we moving to better materials, like duron, but we are looking at how this mechanism could be connected to the impact mill. We are playing around with a slant that will encourage the material to go down, but the shaft wall will also control the size of material that can fit. Right now, our first prototype will be testing a 15 degree angle, but if this is not enough, we will try a 30 degree angle next and keep working from there. This prototype will also allow us to make a comparison of this mechanism and the jaw crusher for primary crushing. IMPACT MILL
We are working on modeling our Impact Mill prototype design on CAD, and then 3D printing these components out of PLA. We first modeled the center pole and chain on CAD and 3D printed this component, as shown in the photo below. We are next working to model the body of the impact mill on CAD, then we will 3D print this component as well and connect it to the center pole. We are planning to order a direct circuit 12 volt rotating motor to attach to the back of the center pole which would cause the center pole and the chains to spin around at a rate of approximately 65 rpm, which is representative of industry impact mills.With a 3D printed impact mill prototype, we hope to gain a better understanding of the ideal clearance between the chains and the center pole, and discover the best way to attach the motor to the center pole. Additionally, we hope to test the mechanism on a weaker material such as a potato chip, and use calculations to compare the prototype performance to the hypothetical performance of a real metal device crushing glass.
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