Day 01/09/16 08:30am - 03:00pm

Attendance:


- Students
Olivia
Owen
Samuel
Taylor
John Paul

-Mentors
Coach Jeff

Tasks

  • PTC - Turret
  • PTC - Plow
  • Brainstorming Winch Lock
  • Building Battery Box
  • Building Electrical
  • Testing the Winch


Reflections

PTC - Turret

The turret required many new custom pats and creative assembly. --Owen




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Here is the turret base. --Owen

Material - Aluminum
Mass - 2.3 oz

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Here are its dimensions. --Owen


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Here is the other mount plate for the turret. --Owen
Material - Aluminum
Mass - 1.1 oz

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Here are the dimensions of the under plate. --Owen



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Here is a slotted piece of 80/20Owen
Material - Aluminum
Mass - 8.6 oz

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Here is the part used to elevate the turret. --Owen
Material - Aluminum
Mass - 1.2 oz


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Here is the slide mount. --Owen
Material - Aluminum
Mass - .2 oz

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Here is the rod mount. --Owen
Material - Aluminum
Mass - .2 oz

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Here is the rod the slides use. --Owen
Material - Steel
Mass - 6.3 oz

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Here is the slide. --Owen
Mass - 1.5 oz




PTC - Plow
The plow goes up and down and looks nice with its slide constraint. --Owen


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Here is the outside of the plow with matching hex pattern. --Owen

Material - Aluminum
Mass - 10.7 oz

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Here are the dimensions of the plate. --Owen

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Here is the inner blade. --Owen
Material - Aluminum
Mass - 16.6 oz

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Here are the dimensions of the completed inner blade. --Owen

Brainstorming Winch Lock


We brainstormed a winch lock and wrote exact measurements on the white board.--Taylor

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All of the measurements for the winch lock. --Taylor

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To find the answers you seek, you must first become one with the marker. OOhhhmmm --Taylor

Building Battery Box-

Today Owen and I built a new battery box to protect the battery. We started out by measuring the battery and then drawing it out on a sheet of aluminum. Next we cut out the lines that we traced on the sheet of aluminum using the band saw. Then we started bending the sides in to make the box. We also left an extra tab for screws to hold it together. Then we found a lizard and let him chill in the box for a while. After ewe let the lizard go, we found a good spot on the side of the robot pickup's side plate and planned on putting a Velcro protector on the top so it will not fly out.-Samuel

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Owen and I bending the edges in on the box.-Samuel

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Here we are bending the box. --Owen

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This is a lizard in a box. --Owen

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This is a picture of the box mounted on the robot.-Samuel

Building Plow

Today we finished the plow for the front of the robot. We bent the sliding piece so that it would fit on the front of the robot. On the top of the piece, we bent two tabs up to attach the springs to and drilled a hole in them. Once we attached the springs, we mounted the servos and built arms to push the plow down these were mounted on the ends of the 80/20 so that each servo would push down one end of the plow. When we tested it, we realized that the slot we had cut for the winch assembly was too small, so we milled out the slot so it would be longer. The front bracket piece still needed some adjustments but we were able to test the assembly on the field and everything was working well. We did realize that we hadn't left enough space between the plow and the drivetrain for the churro. So we bent the half inch of the plow piece out so it would lock in. WE have some minor adjustments to make, but we made some minor progress on the assembly today ~Olivia


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These are the tabs for the springs and the sliding piece for the plow. ~Olivia

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Just look at it in its amazingness. Here is the spring and the servo that will run the plow up and down. --Taylor



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Here are the servos that push the plow down. ~Olivia

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Here we're testing the plow on the field to see if it will lock into the churro. ~Olivia

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We realized that we had not left enough space between the plow and the drivetrain for the churro. ~Olivia


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Testing the plow on the ramp.--Taylor

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Making sure the blocks don't get up under the plow. --Taylor


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Down making sure it goes down easily. --Taylor

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Up making sure that the springs in the back pull it up. --Taylor

Building Electrical


Today we put together the power wire part of the electrical system. In order to save space and power slots we decided to power our four motor controllers with split wires. Basically we stripped part of a power wire and soldered another to it allowing us to power two controllers with just one wire. After the motor controllers were fully wired up we simply ran wires to the two servo controllers and the sensor module. I am glad to say that the electrical board is complete! -John Paul


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Here is the electrical board. -John Paul

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Here is the electrical board from another angle. -John Paul


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Here we are adding power wires to the plate. --Owen

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Here is the completed electrical system. --Owen

Testing the Winch

Instead of us using a safety hook on the robot like last time we put a safety brake in the winch to keep us from falling of the mountain. We had a little trouble making sure that we would have room fitting it all in the robot and after we moved some things around it was able to fit in perfectly. Then me and Taylor slid a broomstick through it, applied the newly installed parking break, and hoisted it up. The robot held perfectly and did not slip up even when it was powered off.-Samuel

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It's not as heavy as it looks and it was for testing purposes. --Taylor