For this assignment we needed to create a wheel that realize something. I was inspire in the picture of Cycloid made by Beranice Abbott.

I started looking into the JunkShelf, and luckily i found a plastic baseball money box. That would be the core of my wheel.

After prototyping in cardboard and reaching the diameter needed it, I mill the pieces in the CNC.

Structure done!!…. now the electrical part. In order to have more intensity, I used brighter LEDs. The more suitable power source for this was a 9V battery. After soldering pins and trying the circuit in a breadboard, I attached the LED around the baseball.

Finally, I painted the CNC parts,

and took some nice long exposure pictures.

For this project I worked together with Andy Sahlstrom. We use the omni wheels showed in class to create a moving robot.

The base for the body consist in to pieces of 0.75″acrylic, in where, we accommodate precisely 3 micro motors from servo city in a some milled paths that already had it.

The control for the DC motors was made with Arduino and H-bridges for each one. After understanding the way to three wheels interact in between them to go forward the wanted direction, we program the robot to go in circle with small pauses.

Here is the video, and some drawings of “it”.

After trying this project idea, and being one motor short for GYROMAN, I felt I wanted to use the movement of the CD to draw something.

First of all laser cut different size of wood until I got one that fit precise in the center hole of the CD.

After that we use a scrap wood to test the motor and added a pencil on the opposite side.

Once the first prototype worked, a better case for the motor and the pencil was design (5 pieces of wood paste together). First consideration was to be able to keep the motor in the case so the motor hole from the bottom pieces was smaller than the others.

Here is a video of the Machine.

For this project I decided to do an elephant that included a mechanism that moves its trunk and tail when is being moved.

First thing was to prototype the illustrator design in cardboard to probe everything works and improve the final model if necessary.

Some adjustment where made to the model, after the feedback from classmates. For example making the wheels bigger (this help me to have more weight on the toy and more traction), making the trunk bigger, and some colors ideas.

The final piece was cut in the CNC, painted with acrylic paint and finish cutting board finish wax.

Here is the final video where you can see the making off the toy.

For this project I picked this mechanism as an example.

I started doing with a diameter of 5″ in order to get a bigger movement distance. So first prototyping in cardboard. I saw that I needed some guides to keep the movement edges in in order to have the horizontal movement I was looking for.

After I change cardboard to 1/8 wood, so I can have a more robust material for my second prototype.

Resize it at least to half, to much friction and how to guide the moving parts were some of the feedback from class.

With the new scale we prototype again using cardboard I try different distance where the rod should be located on the yolk. Also build the moving part in two parts, to avoid the some friction.

Once I had the right measures, I went to mill the part in delrin using the otherMill. Here I recommend to use the bitBreak mode so you can choose where to cut in your piece your files, either outside or inside the stroke.

Finally after testing the delrin parts on a cardboard surface and calculating the right measures for the base.

I had the base built in a thick piece of wood, that i chopped from a table that was tossed it to the street close to school. Here is the final video.

For this assignment I decided to build a chasis that allowed a wheel rotate in the middle, kinda like a windmill.

First thing was to probe that the measures in the design where accurate, so I built a prototype with cardboard.

After adjusting some measures that it could be seen where incorrect in the prototype I use the CNC to built the model with plywood

After sanding and giving a clear finish to the wood, we had our reflective wheel, here are some pictures and a video of what is gonna be use as.

Here is the video of the reflection of the wheel, lighten up with the lamp of the phone

This assignment I choose some acrylic I had to made the 4 wheels asked.

The size wanted for each wheel was 1″, so to have similar wheels we use this measure in the band saw before cutting (see photo) To make it nicer the wheels, I decide to put LED lights into the wheels, for that we drill a whole in each wheel using the drill press and then tested the LED with 3V of power. And to join the wheels I uses a wood dowel.

Finally to give power to the LED, I used the small 1.5V batteries and put them together to get the 3V need it for a descent shine. A hole was drilled in the dowel to cross one cable of the LED through there and solder to the end of the battery. 

Finally we light the wheels.
To avoid having connect the batteries the whole time, a small wire rod is need it to make contact between the two batteries.