Heart of Texas B.E.S.T. Robotics Penelope High School Wolverine Extreme Team Team Number: BST 467 Lead Teachers: Jessica Thomas and Jonathan Shaw October 18, 2014 1 Contents Penelope .......................................................................................................................................... 3 History of Penelope..................................................................................................................... 3 Penelope Independent School District ........................................................................................ 3 The Wolverine Extreme Team Company Structure........................................................................ 4 Engineering Design Process ........................................................................................................... 6 Preliminary Designs .................................................................................................................... 6 Trial and Redesign ...................................................................................................................... 8 Final Robot Design ..................................................................................................................... 8 Safety ............................................................................................................................................ 12 Game Field .................................................................................................................................... 12 Strategy ..................................................................................................................................... 13 Programming............................................................................................................................. 15 Wind Turbines in Texas ................................................................................................................ 16 Works Cited .................................................................................................................................. 19 Appendices .................................................................................................................................... 20 Appendix I: Budget ................................................................................................................... 20 Appendix II: The Game Field ................................................................................................... 21 Appendix III: Original Robot Design ....................................................................................... 22 Appendix IV: Robot Pulley Design .......................................................................................... 24 Appendix V: Programming ....................................................................................................... 25 Appendix VI: Safety Test ......................................................................................................... 26 2 Penelope History of Penelope To know our company, we feel it is best to know our history. From 1893 to 1895 the first settlers began to flow into the area, farming the land and settling in homes for themselves. The first school was finished in April 1895, paving the road for growth and prosperity inside of the community of Penelope. In 1902, Penelope became a boom town, flourishing under the hands of Czech immigrants moving to the amazing area. A railway flowing through the outskirts of town and new techniques in farming conducted in swells of money, allowing residents to shape the town into their idea of a countryside utopia. The small town of Penelope was so successful, the residents built a bank, a post office, a grocery store, and two churches. Sadly, Penelope’s forward progress was slowed by an enormous fire that destroyed every business and establishment in town. Some of the broken down buildings still stand today as a reminder of what happened many years ago. Today Penelope is an agriculture-centered town filled with hard-working citizens and a successful school district. Penelope Independent School District Penelope I.S.D. is one of the smallest districts in Central Texas with an attendance of around 200 students. With small classes ranging from a ten to fifteen students, teachers have the ability to schedule one-on-one time with anyonethat needs extra help. Because of this, Penelope ISD’s standardized test scores went through the roof, giving the school a new and glistening reputation of being one of the best schools in the area. Families are eager to drive from as far as Waco and Ennis to have their children attend Penelope ISD. Penelope ISD supports all levels of education, from pre-kindergarten all the way to twelfth grade. Under the observant eye of the superintendent, Scot Kelley, students are allowed to flourish and learn in a safe environment. To allow growth in a variety of areas, there are multiple different extracurricular activities offered. 3 For example, there are many different physical activities including volleyball, basketball, track, cross country, football, and cheerleading. For students who want to exercise their minds, they have the option of Robotics, Yearbook, One Act Play, UIL academics contests, and many more. Also, Penelope recently constructed a junior high One Act Play program that enables junior high students to get a taste of acting in their own play. The Wolverine Extreme Team Company Structure Figure 1: Company Structure Hierarchy Like the inner workings of our robot, our company has a very complex structure. There are many parts that coincide to make our company successful. Our company structure is split into different departments such as Documentation and Exploration, Research and Development, Outreach, Exhibit, Financial Operations, Production, Project Operations, and Information and Technology. 4 Wolverine Extreme Team does not receive adequate funding to carry out its required functions. To overcome this deficit, the company developed a new fundraising strategy. To fundraise, we went to surrounding towns and asked for monetary donations or contributions of supplies from local businesses. We gained several sponsors using this method. We also hosted fundraisers. Our most successful fundraiser was the second annual Penelope Powder Puff football game, held on September 24th, 2014. The Financial Operations branch not only oversees fundraising, but also the marketing of our project. The CFO is one of the most important members of our team because without their input, our company would surely fail (see Figure1 and Appendix 1 for details). Our next branch of thecompany structure is Outreach. This branch oversees spirit and sportsmanship. To show our spirit, we made posters for our own team and in support of all other teams that are included in the Heart of Texas Hub. Noisemakers and hula-hoops covered in ribbons were used to get everyone pumped up for competition day. To spread the word and get future team members excited about Robotics, we invited all 8th grade students to attend the BEST competitionwho wish to learn more about robotics as a whole. Also, Wheezy the Wolverine showed his support of the Wolverine Extreme Team on game day. The next branch of the Wolverine Extreme Team is the Information Technology (IT) department. The purpose of the IT department is to coordinate all technology for the team and distribute pertinent information through a website at peneloperobotics.weebly.com. They are also given the task of programming the robot so that it works in sync with the remote controller. To program the robot, they used MatLab. Next is one of the most important parts of our company structure, the Production Team. The duties assigned to the production section are to construct a robot out of the given materials 5 in a period of six weeks. Each day, they work on specific tasks assigned to them that day. They also spearhead the creation of the engineering notebook. The engineering notebook is a collaborative effort. This notebook has been created by many of the board members and team standouts. The project notebook outlines the details of our project throughout this vigorous competition. Engineering Design Process At the BEST competition kick-off at Texas State Technical College, after seeing the course and learning about our robot’s tasks, we immediately came up with a robot design. We thought, “Why not replicate a machine already existing that can perform these certain tasks?” As a result, we came up with a forklift design for our robot. A forklift has been used for many years to lift and transport materials with ease and precision. We believed that this was the best design choice because not only would we be able to lift and move the large game pieces better with forks than with a grabbing mechanism, but the simplicity of the design would result in less confusion and more efficiency come game-time. Preliminary Designs During the first week of competition we conducted a production team meeting. In this meeting, we discussed how to create our forklift design and incorporate it into our robot. We also assessed and proposed several ideas. We looked at each design and voted on the best plausible idea. From there we began drawing them up (see Figure 2 and Appendix III). Figure 2: Original Lift Designs 6 One of the proposed ideas for our robot design included having two large front wheels with separate motors attached to the base that would allow it to utilize a tank-like drive system. We also thought about including a smaller center rear pivot wheel by utilizing the ball bearing turntable and the roller blade wheel. One of the key points about this proposed forklift design included utilizing an elevator shaft to raise and lower the forks (see Figure 3). To attach this shaft to the base, we considered using a hinge. A hinge would allow us to tilt the shaft backwards, which would in turn tilt the forks backwards Figure 3: Forklift Prototype and keep the objects we pick up on the forks. To keep the shaft from falling back onto the base, we thought about adding a support bar which would catch the shaft at a slight angle and keep it from moving. Another consideration included adding a spike in between the two forks that would allow us to lift the prairie chickens with ease. With our original robot design, we only included three of the four motors that were provided. This would benefit us by keeping the robot lighter in weight and maintaining simplicity. The negative points about our proposed forklift designwere few, but concerning. One was that we may not have enough clearance for the elevator shaft to travel over the oversized/overweight bridge; it may hit the bridge head on, getting the robot stuck. Another problem we might encounter is tilting back the elevator shaft. The back bottom edge may hit the ground when tilted backwards, halting the movement of the robot. The last problem we may come across is being able to raise the forks without tilting the elevator shaft backwards, or vice versa. 7 Trial and Redesign The first test of our robot on the game field was at Test Drive at McLennan Community College. Problems we found were that our back rotating wheel would drag across the carpet, we still had not decided how we would pick up the prairie chickens since we had no hook mechanism, and we had trouble climbing the bridge ramp. We returned to the school that day and came up with new ideas for our robot design. We analyzed all the problems in our new ideas and tried to find a design for their solutions. A design we found to be most useful would have not one, but two lifts. Each would be attached on opposite sides of the robot, but run off of the same small motors in the middle of the base. From this design, we were able to solve the problem of picking up the prairie chickens by incorporating a bent steel rod on the backside. Another part of the new design changed the back rotating wheel to a rotating golf ball because it would have less drag and roll easier. Our original rotating wheel was constructed similar to a shopping cart caster and consisted of the ball-bearing turn table, a bracket made out of aluminum sheet, and the roller blade wheel that was given to us in our returnable kit. Although it seemed like a good idea at the time, we learned that it was setting us back because it would not turn properly. To solve our problem of trying to climb the bridge, we decided to modify our front wheels with strips of bicycle tubing by weaving them in and out of holes drilled in the inner circumference of the wheels. The only downside to having two lifts was that we had to decrease the size of our base in order to be in compliance. For that same reason, we could not make our bent steel rod as long as we anticipated. Final Robot Design 8 Our first base design was a 16 inch by 18 inch piece of ½ inch plywood. However when we added our extensions, the robot would no longer fit within compliance, so as a result, we reduced the original base size to a 14 inch by 14 inch square (see figure 4). Our original ½ inch plywood wheels were 8 inches in diameter, but were later reduced to 6 inches because they were too large and made the angle of the base of our robot too steep. We used four 1 ¼ inch long 8/32 size bolts to attach a 2 inch by 2 inch Figure 4: 14in. x 14in. base aluminum block to the center of the wheel for attaching our large motors heads. Using a tap, we threaded a hole in the 2 inch by 2 inch aluminum block to pinch the motor head with a screw. To add grip our wheels, we drilled out eight ⅝ holes around the inner circumference of the wheels and weaved strips of inner tube through them. We ended up supporting the back of our robot by creating two PVC “skis” and placing them 6 inches apart from each other. The “skis” were each made of a 4 inch long 1 by 4 block of wood. To allow them to slide easily across the game field, we decided to cut a 4 inch long piece of ½ inch PVC pipe in half and attach it to the bottom of the 1 by 4using two pan-head screws. We fastened our large motor mounts three inches from the front of the base using six 1 ¼ inch long 8/32 size bolts. These mounts held the large motors that turn our front wooden wheels.On the top of the base, the small motor mounts were centered seven inches behind the front of the robot in the same fashion as the large motor mounts. The small motors turned a 4 ½ inch aluminum rod which was drilled out on both ends to fit the small motor heads. We then tapped a hole ½ inch in to pinch the motor heads in the aluminum rod. The string that lifts and 9 lowers the forklift and hook was attached to the aluminum rod by wrapping it around the 8/32 bolts in our tapped holes. The elevated guides on both sides of the robot were made using the aluminum track system provided to us and screwed to an 18 inch long piece of 1 by 4 inch wood using four panhead screws. The 1 by 4’s were then attached to the base by creating an aluminum “L” bracket by using the aluminum sheet cut down to a 5 by 2 ½ inch rectangle. We used a brake to bend the aluminum sheet in half and attached both sides, one on the 1 by 4 and one on the base, using eight 8/32 size bolts with accompanied nuts. The forks themselves were made using a 6 inch by 3 ½ inch piece of 1 by 4, a piece of aluminum sheet cut to the dimensions of 9 inch by 6 inches, and a sheet of plastic cut to the dimensions of 6 ¾ inch by 6 inch. To attach the aluminum sheet to the 1 by 4, we first had to bend it at 3 inches with a brake. That side was later attached to the 1 by 4 using four 8/32 size bolts with accompanying nuts. To Figure 5: Spacer for Forklift Runner make the fork prongs, we cut a 6-inch strip three inches wide in the center of the aluminum sheet. To support the forks and make them sturdy, we attached the sheet of plastic to the bottom of the 1 by 4 using three pan-head screws. We then cut a 6-inch strip three inches wide in the center of the plastic so that the plastic and aluminum matched. We then screwed an eye-hook in the top of the 1 by 4 for the string Figure 6: Forks with strips of friction tape. to run through to act as a movable pulley. Then we put a 2 10 inch by 3 ¼ inch plastic spacer on the back so that our screws that hold the runner of the aluminum track in place would not drill all the way through the wood and the aluminum (see figure 5). Last, we wrapped the forks in friction tape to increase grip (see figure 6). We made six pulleys for our string to run on; one on the top of each elevated guide and two on the base three inches directly behind it. We also created movable pulleys on the hook and forklift. To make our base pulleys, we cut a piece of sheet aluminum to the dimensions of 6 inches by 2 inches, and used a brake to bend them to make a U-shape, making each side two inches long. After bending it, we drilled a hole one inch high on both sides then bolted it down using two 8/32 size bolts. Next, we inserted a four inch long aluminum rod with tapped holes on both sides through one hole, slid on a 1 ¾ inch long ½ inch piece of PVC, and inserted the rest of the aluminum rod through the other hole. Last, we inserted 8/32 size bolts into the tapped holes to keep the rod in place. To make our pulleys that attach to the top of the forklift elevated guides, we fastened two pieces of 4 inch by 1 inch aluminum sheet to both sides of the 1 by 4 using 2 pan-head screws. The rest of the pulley was made exactly like the base pulleys; we drilled holes in the aluminumsheet, inserted the tapped aluminum rod through the PVC and holes, and finally inserted the pan-head screws in the tapped holes on each side. Each of our extension pieces uses movable pulleys; the hook has a locked nut system that the string runs around, and the forks have an eyelet that allows the string to pass through it (see Appendix IV). We ran a 20-inch long string from a screw in the top right side of the forklift elevated guide, through the eye-hook on the forklift itself, over the pulley on top of the forklift guide, under the base pulley, and then finally attached the string to the aluminum rod in the center of the robot by wrapping it around the screw in the tapped hole. The same procedure was done for 11 the opposite side.The last thing we did was mount the VEX on the back corner of the base and attach all the wires to the motors. Safety Safety is our number one priority on the Wolverine Extreme Team. Before working on our robot, we had lessons about safety and took a test afterwards (see Appendix VI). It was required that the students pass this test before working on the robot or in the shop. We utilized safety goggles and glasses at all times in the shop. Team members opened up the shop doors to ventilate our work area and turned on proper lighting. We checked our equipment to make sure everything workedand was in good condition for use. Only then were we ready to start making cuts. Materials were clamped down, and if the materials were metal or plastic we sprayed it down with water to keep it cool so as not to melt the material tothe saw blades and drill bits.The correct blades and drill bits were used for the correct materials. We also made sure to wear closetoed shoes, short-sleeved shirts, blue jeans, and had our hair tied back. Our team maintains a system of small work groups that allow experienced group leaders to oversee activities and enforce our above-mentioned codes of safety. Game Field The game field is divided into four separate sections, one for each team in play with a maximum of four teams competing each time. Each section is a triangle that consists of two main areas. The 2x2-foot starting box is connected to the first main area, which is called the stockpile area. The goal is to construct wind turbines using materials from the stockpile area and transporting them to the assembly area. Blocking the path to the assembly area are three prairie chicken environments, which must be moved back to the safety of its starting box. Thenthe 12 driver will decide whether to navigate the robot over the bad road or over the bridge after acquiring an oversize/overweight permit. If the robot chooses the bridge, it must open the bridge gates. If the robot chooses the bad road then it must simply be able to move the turbines, the small nacelle,and the small hub/blade assembly across the road without getting stuck or dropping its load. Once on the other side, the robot is now in the assembly area. The robot must be able to drag turbine materials to this area and then to their prospective turbine and, with the help of the spotter, place each blade in its correct position on its turbine. There are two turbines in the assembly area, one large turbine tower and one small turbine tower. The large tower requires that the robot carry all of the blades to the assembly area and put them each in the right position on the turbine. The smaller turbine blades are all attached together and the robot must drag these over to the small turbine and then lift the blades off of the ground and place them into the correct position (see Appendix II for game field details). If two teams decide to work together, then they must alert the referee, who will place a co-op card on the cactus plant to signify that these teams are working together. When this happens, the field changes dramatically. The assembly area of one team becomes connected with the stockpile area of the other team, allowing the teams to build turbines much quicker. Both robots will be able to work together to lift and carry turbine parts and both are able to work with the spotter to build both of the turbines. All of the points scored will be pooled and equally divided amongst both teams after the competition is over. Strategy When the round begins, the robot must drive out of the starting position, collect the prairie chickens, and reposition them to a safe location. Each prairie chicken collected and 13 moved to the robot’s starting position will earn the team 10 points. Then the driver must choose which road to drive over. In order to access the assembly area, the robot must be able to press the oversize/overweight release button. Since the bad road is hard to cross, the robot must have a good drive system so that it can make it across without getting stuck. If the team chooses not to cross the bad road, then they must access the bridge by lifting the bridge gates. When the robot carries the materials to the assembly area, it must put the parts in the right turbine, and with the help of the spotter, get the turbine lifted into an upright position, and the blades in their correct position. Once the turbine is raised, the spotter can adjust the blades, and if one falls out, then the spotter must lower the turbine and let the robot return the blade to its correct position. A spotter may not pick up a fallen blade. Only when the blade is on the turbine, may a spotter adjust them. When all of the blades are in the turbines, and in their correct positions, then the spotter may raise the turbines and make any necessary adjustments. When the turbines are raised, then the team scores points. If teams choose to work together, then they must tell the referee beforehand and then a co-op card will go on one of the cactus plants to signify a co-op relationship between the two teams. In co-op play, teams must use each other's parts so that they can get the turbines built faster without having to go over the bad road or the bridge. All points scored by teams working together, get pooled and divided 50-50 between the two. Our offensive strategy is to move the prairie chickens to their safe environment at the very beginning of each round. There are a total of three chickens in the environment and each chicken is worth 10 points, for a grand total of 30 points. Our robot is designed in a way that permits us to easily pick up the prairie chicken with our front hook. After moving the prairie chickens to the safe environment, we plan on opening the bridge gates to earn us 10 points. Our robot is not built to easily travel over the bad road, so we will ignore that pathway. The bridge is 14 our target. To transport our parts across the bridge, we plan on pushing them into the assembly area with the forks of our robot. With the help of the spotter, we will fit each component into its correct place. Our defensive strategy is to advance to each round by being consistent in scoring points. The other portion of our defensive strategy is to be the first team to hit the oversize/overweight button. After we put everything in its correct place, it is up to the spotter to raise the turbines and make sure that the blades were inserted correctly. If any blades fall out, the robot must fix the problem, not the spotter. The spotter’s job is to guide the robot through the course and aid in the raising of the turbines when each blade is inserted. If we decide to play the game in co-op mode, then our strategy will change. It is a new field if two teams decide to work together. Turbine blades can be moved more quickly across the field and we will be able to avoid both pathways altogether. When in co-op, all points scored by both teams are pooled and then divided equally at the end of the round. It is likely that we will not even participate in co-op. Although we might be able to get things done faster, we would still receive fewer points. Playing alone is probably the best strategy so that we do not have to rely on another team to score points. Programming The programming for our robot is very simplistic. Our robot features a tank-drive system this year as well as a dual lift system. This means that each drive motor is controlled by separate buttons but operate at equal speeds. The dual lift system is controlled by the right analog stick. Our dual lift system is operated by two motors to double our lifting power.We added a block in the programming allowing us to control both lift motors with one analog. Without this block the two motors will pull against each other, which could damage them (see appendix V). 15 Wind Turbines in Texas The use of wind power has been around for ages. From the grain-grinding windmills of the fifteenth century Holland to the water pumping giants of the American west, though their purpose and appearance has changed drastically, their importance has been undeniably sustainable. Since their invention, wind turbines have come a long way. Wind turbines are propeller-like blades that spin with the wind to generate power. As the propeller spins, it starts to power an electric generator for the community. The wind turbine is made up of three blades or rotors. The rotors are connected to the top of a tall tower that is about one hundred feet tall so that they catch more wind. As the wind blows it creates an air bubble around the blades. That air bubble then pulls the propeller down and makes it spin. Wind turbines are used extensively throughout Texas and the rest of the United States. Although wind mills were used for an extended period of time by settlers for moving water and producing food, Americans quickly learned that wind turbines were useful as well. The first out of all of these amazing wind turbines was constructed in 1888 by a man named Charles F. Brush. By 1920 the first vertical axis turbine was created. In 1927 the Jacobs Wind Factory began production. This factory and others like it produced energy from wind. However, they did not produce enough power to sustain our needs. By 1941, megawatt turbines were in use. Forty years later, turbines became several times more powerful. In 1981, the first 7.5 megawatt turbine was built by NASA. Every year, wind turbines are getting more and more efficient. Energy produced from wind was up 13% compared to 2012. Today, wind energy is experiencing exponential growth. Since 1990, energy production from wind has increased by 25% annually. There are many advantages to having a wind turbine. Some of the advantages to wind turbines are that they do not take a lot of space. If the wind turbine is on your lave and then they will have to pay rent to be able to keep it on your land. It also gives many people jobs like 16 welding, construction, engineering, technician, repairs, and transportation. They produce a clean source of energy compared to coal or nuclear energy. If enough people adopt the use of wind energy then it could reduce the amount of fossil fuels used today which is a large cause of global warming. Texas is currently ranked second in the nation for the number of turbines, totaling over seven thousand five hundred. Texas also ranks first in power generated with over 12,300 installed megawatts of power, which is equivalent to twelve trillion watts of power. With over 1800 megawatts of power installed in the past two years, Texas is leading the nation in installed megawatts over that period of time. Currently ten percent of Texas power comes from wind power. This is the largest amount in the nation. Wind power in Texas is quite sustainable, to say the least. By harnessing the wind power currently in Texas, we can avoid producing twenty-one million metric tons of carbon dioxide. This is comparable to taking over three million cars off the road. Producing wind power produces no emissions and uses virtually no water. It will also help the world’s environment and air quality. Wind power is becoming a big deal in the world today! Some of the disadvantages of wind turbines are that winds can be very unpredictable on some days. Some days, turbines might not create any power while on others there can be the perfect weather to gather energy that day. If there is a storm in the area then the turbine might get damaged or will not be able to operate like it is supposed to. There might also be fatigue failure inside of the wind turbine. Another is that people think that if they have wind turbines on their land that it ruins the natural look of the land. They are very noisy at some times also. They can be as loud as a car going 70 miles per hour. Some say that it can interrupt radio and TV signals. When the turbine is constructed, the wildlife can be destroyed in that area as well. Also after 17 these turbines are constructed then many birds can be killed by the massive blades on the turbines, especially if those wind turbines are in a wind farm. In the future, the United States will continue its construction of wind turbines. Currently projects that will produce another seven thousand megawatts are under construction. Texas still has the potential to produce another two million megawatts in addition to current energy production. Wind power and wind turbines are not going away. In fact, they are becoming the answer to the age old question: How can we produce clean energy? Texas is the example for wind production. Texas leads the nation in nearly all possible categories of wind energy production. Texans will also enjoy even more prosperity in the future due to extremely high potential in the wind power and wind turbine manufacturing industries. In conclusion, wind is the answer, and it will not be long before the highways will be full of blade runners. 18 Works Cited Bratley, James. “The Impacts of Wind Turbines.”Clean-energy-ideas.Web. 14 Oct. 2014. Hawthorne, Sam. “Harassing Wind Energy as Power.”Ezinearticles. 13 May. 2010. Web. 14 Oct. 2014. Lucille, Brandon. “What to Know in Residential Wind Turbines.” Ezinearticles. 23 Jun. 2010. Web. 14 Oct. 2014. Osborne, James. “Texas Wind Farms Break Generation Record.”Bizbeatblog. 27 Mar. 2014. Web. 22 May. 2014. V, Ryan. “Advantages and Disadvantages of Wind Power.”Technologystudents.Web. 14 Oct. 2014. N.p. “Wind Turbines - Wind Power | GE Energy.” GEenergy.Web. 22 May. 2014. N.p. “Wind Energy.” Windpower.Web. 22 May. 2014. N.p. “State Wind Energy Statistics: Texas.” Awea. 10 Apr. 2014. Web. 22 May. 2014. N.p. “History of Wind Energy.” Energy.Web. 14 Oct. 2014. N.p. “Understanding Texas Wind Power: A Policy Guide.” Texaswindenergy.Web. 14 Oct, 2014. N.p. “Texas Wind Energy Success in Culberson County.” Windenergy7. 14 Oct. 2010. Web. 14 Oct. 2014. N.p. “Exploring Wind Turbines Advantages and Disadvantages.” About-alternative-energy.Web. 14 Oct. 2014. “Disadvantages of Wind Energy - Factors You Need to Consider.” Advantagesofsolarenergy4all. Web. 14 Oct. 2014. 19 Appendices Appendix I: Budget Figure 7: Expense Report Summary Expenditures Building Materials Marketing Fundraising 29% Meals 48% 21% 2% Figure 8: Distribution of Expenses 20 Appendix II: The Game Field Figure 9: Game field stockpile area Figure 10:Game field assembly area 21 Appendix III: Original Robot Design Figure 11: Preliminary forklift design Figure 12: Preliminary base design 22 Figure 13: Preliminary base design, side view Figure 14: Robot, version 1 23 Appendix IV: Robot Pulley Design Figure 16: Pulley mechanism Figure 15: Pulley mechanism 24 Appendix V: Programming Figure 17: Programming . 25 Appendix VI: Safety Test 1. What equipment is not included in proper protective equipment? a. Gloves b. Eye protection c. Close-toed shoes d. Apron 2. When using a table saw what type of push stick should be used? a. Metal rod b. Wooden dowel c. Your hand d. No push stick is needed 3. When using a band saw what should be done with the piece you are cutting before you begin? a. Clamp it to the cutting table b. Wash it in the sink c. Hold it tight to the cutting table d. Bolt it to the table 4. Which is something we should check on all electrical tools before use? a. Cords for fraying b. The outlets for proper electrical output c. The casing for cracks d. That we have water to spray on it in case it seizes up 5. What can be used on a drill press to help cool and prevent melting on a drill press? a. A fan b. Any liquid c. Water from a spray bottle d. Lysol 6. What should not be done at the end of every day in the shop? a. Sweep all the saw dust up off the floor. b. Place all tools back where you found them c. Record all the steps that you did for the notebook. d. Take apart the robot. 7. What is the proper way to start cutting with an electric saw? a. Line up the blade with your marks and start the blade before touching the wood. b. Place the blade against the wood and start cutting. c. Push as hard as you can down on the wood and push hard into the cut. d. You should start your cut with a hand saw 8. Your fingers should never get within how many inches of the blade cutting line? a. 8 inches b. 12 inches c. 2 inches d. 24 inches 9. When a saw is running never use what to remove small scrap from the cutting path? a. Fingers b. Push stick c. Pencil d. Stock being cut 10. When cutting with different electric saws you should: a. Make sure you are aware of your surroundings, look around the shop once while cutting stock 26 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. b. Make sure you have an audience so that you can explain what you are doing. c. Always concentrate of what you’re doing, never talk to anyone nor look away from the cut. d. Remove scrap from the saw and floor only at the end of the hour. If a blade or something on the machinery breaks while you are using the saw you should: a. Try to finish your cut b. Turn off the power and notify the instructor immediately c. When convenient, inform the instructor, preferably at the end of the class period. d. Tell no one and hope someone else gets blamed When sanding with a belt sander, your stock should be: a. Held with one hand only b. Placed against the belt and worktable at the same time c. Placed against worktable first d. Placed against belt first When operating the drill press, what should be done with long hair? a. Hold it away from the drill bit with one hand b. Put it under a cap or hair net and keep your head away from moving parts c. Get a hair cut d. Keep your head away from moving parts. When working in the shop which is necessary for a safe work environment? a. Work area is free of clutter and scraps b. Lights on c. Teacher present to supervise d. All of the above If the metal being drilled begins to revolve, you should: a. Turn off the drill press and free the metal. b. Tap the metal lightly with a hammer to free it from the bit c. Stop it with your hands d. Move the drill press table to foul the rotating piece of metal Which is not a safe way to secure metal while it is being drilled? a. Hold it firmly by hand, but securely on the drill press b. In a drill press vise c. Clamp d. Between supports mounted on the drill press table After drilling operation is completed what is not a potential hazard to look out for? a. The metal being hot b. The metal melting c. Sharp edges and burrs around the hole d. The drill bit being hot When measuring to make cuts, what is the best method? a. Estimate and sand it down later b. Measure once and cut c. Measure once, mark it, and measure both pieces again d. Use a diagram Where should you stand when using a sander or electric saw? a. Directly behind the cutting blade b. Behind and to the side of the saw or sander c. In front of the saw or sander d. Where ever the cord isn’t Please list any tools or skills that you may have in the Ag shop in the space below. 27