User:Brad9621/Project 2

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Project Preference

 * 1) Beat Bearing
 * 2) Automatic shaker table

Problem Statement
''In one or two sentences, describe the project that your group will be working on. Identify what CDIO phase (Conceive, Design, Implement, or Operate) your group will complete in this project cycle.''

Project Plan
Briefly describe your group's plan for the next 4 weeks, including major tasks that will be completed each week.

Week 1 Narrative
''During the past week of work on our project we have touched up the design to the manual shaker table and are going with the original design of the last groups shaker table. The design will have a base of a 3ft by 2ft with a foot of space for a box which will contain a cord attached to the arduino as our main circuit device, every other device will be connected by soldering wires to each other to connect to the arduino one way or an other. Attached to the arduino is a breadboard that has a motor, an on/off switch and a frequency knob which will all be controlled through the arduino. When building the actual device there wont be a breadboard involved to make the machine work. My main task for this week was to gather materials to build the device itself. I made a list consisting of: arduino, battery, wires, 2x4 wood boards, plywood boards, two three and four inch screws, ceiling hooks, one armature, switch on/off, frequency knob, and four dowel rods. All these materials are needed to create our automatic shaker table plus having a code to control the arduino to oscillate the board. Some other side thinking was done to see what can get rid of the Velcro on the manual shaker table. What me and kyle thought of was drilling holes into a new thicker board for the base of the manual shaker table so straps of some kind can come underneath to hold down the table better than before. If the straps come from underneath there is more space on the top for different models. And the grid with evenly spaced holes throughout the bottom of the board will be better so that no matter what size or shape of the building the model will be able to be hooked down to the board through those holes. Eliminating the shaking of the manual table is an other problem that came up which can be solved if you go diagonally across the corners of the building model. In doing so the building is straped at two points at both ends of the corners rather than being strapped in the middle of the building where the corners can be shaken more easily causing the building to shake more.

Week 2 Narrative
''during this week my task was to improve upon the manuel shaker table and discuss with the group how we are going to build the automatics shaker table. To improve the manuel shaker table it needed better parts to replace or add to the existing machine. One problem was to replace the existing platform, a 20 x 24" plywood board with 1/4 in width, that was warped not allowing it to roll smoothly. I bought a thicker board that was the same dimensions but a 1/2 inch width. Spray painted it with a bright blue base with polkadots of white with different shapes and sizes. Once the board was done drying i measured the old boards for measurements for the four nuts in each corner of the board. From each corner the nuts are 4 inches squared spaced apart. Using these measurements i drilled a 1/4 inch whole in each one of the corners for the nuts to fit. Next problem was the struts for the dowel rods to freely move in between need to be strong and smooth. I found wood screws that have a little amount of threading at the bottom of it to screw into the pvc pipe leaving an extra 2 inches of the screw with a smooth surface like a nail. Another problem was suction cups were needed to hold down the frame of the shaker table. But kyle, who is in my group helped me do that for me. Once completed with all the main problems i added extra styrofoam rings to fit around the dowel rods. The reasons i made the styrofoam rings were to kill two birds with one stone; one reason was to reduce the noise when the board and dowel rods are rubbing against each other and two was to keep the dowel rods from sliding out of the struts. The rings needed to be slightly less than the width of the dowels, so i went with 9/16 inch hole diameter to fit the 5/8 dowel rods width.i did this step about eight times for eight different rings and all them measured to be the same size, 1 1/2inches, to roll the smooth under the board when testing. Now the manual shaker table that was once was is now better with more than just the three original problems solved. The platform is thicker, less noise, less free movement from the dowel rods, and the base is secured with suction cups. As for the next task that was assigned this week the entire group voted to use the basic design of the manual shaker table and turn it into the automatic shaker table. We all know we a need a code arduino motor frequency knob wires and a housing for all this to work together. We collaborated on a few designs the scott drew up and we are going to be building something similar to the last automatic shaker table group's design

Week 3 Narrative
''Describe in detail what you did for your team during the week (and weekend). Compare your task (from CDIO discuss page) with what you actually did.''

Week 4 Narrative
During this week in the progression of the automatic shaker table all the components needed to have this device full operational are resolved. Soon and kyle's task this week was to get the motor to work and other electrical gearing. Through many hours of fiddling with the code to spin the motor they finally have found a code that makes the motor spin in one direction. Now with this working we can have a huge gear, with an armature attached to it, spin in one direction which will cuz the armature to rotate with it and thus moving the board that the armature will be connected to as well. Having said that, my task was to build the frame and an other manual shaker table for the automatic shaker table and all the electrical equipment that soon and kyle have been working on. For the automatic shaker table design we are using the exact same design of the manual shaker table but adding a frame that can be attached to the extra manual table on the bottom and simultaneously house the electrical components in a box to the side of the frame. This kind of frame has a simple design to it but is best suited for being lightweight, low cost and a perfect size for the platform and electrical parts. First i started out using two 1x3 wooden boards spaced apart about 20 inches from each other, this should be the width of these second manual shaker table. The length of these boards should be three feet, providing enough space for the table and the electrical box. Taking three of the same kind of wooden board i cut them to be 20 inches in length, these boards will than be screwed down to one of the ends of the two boards that were placed earlier. Most of the frame is already done once you have this built. All that is left is to build walls around the three 20in long boards that were screwed down to the two longer boards. To build the walls i cut up pieces of ply wood that was 1/4in thick into different sized squares for the walls. Two pieces needed to be 6x10in squares for the sides of the box, another two pieces needed to be 6x23in squares for the long lengthy sides of the box and last piece was a big 10x23in square to fit on top as the roof to shelter the electrical wiring. Once i had all those pieces cut out i screwed them into the sides of the 1x3 wooden boards that were cut to 20in. The top piece for the roof needed to have square wooden blocks in the top corners of the box to be able to screw down the roof to protect the electrical wiring. Now with the frame build and the electrical box soon and kyle can add the arduino and gearing to the table to actually have it move on its own. I also needed to do one more thing which was to screw down metal straps that will hold down the second manual shaker table to the frame that i just built and add wood screws to the pvc pipe on the second manual shaker table so that the dowel rods aren't moving freely out of control.