DC Motor Mixer

My materials for this fabrication are: 1 DC motor, 1 motor shaft coupler, 1 wooden dowel, 1 pen shaft, 2 wires, 3V batteries and holder
I attached the metal rod to the DC motor with shaft coupler.
I bent the wires and used the plier to make some twisted knots at the end. Then I filled the front part the pen shaft with hot glue and inserted the end tip of bent wires into the tip of the shaft and waited until the glue drys. After I put hot glue through the pen shaft, it melts the the tip a bit because it’s made of plastic.
Then I filled the other end of hot glue and stick the wood dowel through. The end part of the plastic also deformed a bit because of the hot glue
Before I stick the wood dowel in, I used the smallest drill to drill a hole through the end of the wood dowel so that later on I can stick the metal rod in and connect it to the DC motor.
Connect the DC motor to the rest.
Double sided adhesive. I used it to attach the motor to the battery holder.

 [final result gif]



Two Materials—Magnetic Business Card

For this week’s assignment, I utilized two different materials, left over mat-board from my last project and magnet, to create my business card.

Spray mat-board with aluminum spray paint and let it dray for a while
Laser-cut the business card using etching and vector cutting
Attach magnets in the back of the business card with magnet tape
Trim off the excessive magnet with knife

The business card adhere to fridge


Last week, the assignment was to create enclosure. I used mat-board bought from Blick to make an enclosure for my electronic brain diagram.

Use laser cutter to etch the graphic
Laser cut all parts of the enclousure
Button holder panels
Place tactile buttons through the holes on the button panel
Create circuits. One set of batteries supply electricity to two LED pins via parallel circuit.
connect all the circuits (however, I failed to realize the length of the circuits…I made them too short…and also the wires I used was really hard so bending them was difficult)
Placed the wires and batteries inside the box
Attach Velcro around the edges of the top cover as well as around the top edges of the box so that the top cover can be easily taken off

Lessons learned from the assignment:

1. Use flexible silicone wires instead of hard copper wires for complicated circuits

2. Use more sturdy base for push buttons

3. Mat-board is great for prototyping, but it’s not the best choice for enclosing electrical wires


Laser Cutter Project

For this week’s assignment, I used laser cutter to make a 3D parametric pattern using mat-board. This is my inspiration for the pattern:

The entire project is done by vector cutting, so in my illustrator file, the pattern is traced using 0.1pt red line. There are total of ten individual pieces that will be layered on top of each other at the end. I laid only two pieces every Artboard (so total of 5 artboards) along left side of the canvas so that I could get better and sharper cut each time I run.
Here’s my preparation in illustrator:
Material used: 20×30” mat-board.
Since the laser bed is only 12×24″, so I had to trim the board down into four pieces: 12×24″ (this piece was able to get used up completely after running 4 artboards, and that’s 8 pieces), 8×24″, 8×6″, and 12×6″(this piece was also able to get used up after running the last artboard, and that’s the last two pieces). So now I have a 8×24” and a 8×6” mat-board left to be used in the future.
Before sending the file to the laser cutter, I set the speed/power/frequency to 50/50/500 according to ITP’s material list.
Under the 50/50/500 setting, it took the laser cutter 5 times to cut through the mat-board. So when I ran my next Artboard, I increased the power to 60 and it took the laser cutter 3 times to cut through…so that saved me a lot of time.

Making of Multiple Objects

My idea for this project is to make multiple self-arrangable organizer shelves for storage with LED lights embeded around the frame that look like this:

[SketchUp Mock-up]

and here’s my messy sketches as I think through the process of making these shelves:

Material Needed: Wood, Spray Paint, LED Lights, Battery Holders with Switches

I started the process by marking measurements on each 6 ft-long wood so that it would be easy and more accurate for cutting.

now I have 48 short pieces of wood ( 24 x 8.5”s, 24 x 7.75”s)…and here’s one of my “OH NO” moments: I found out that I did not have enough wood for the fifth shelf. (each shelf should have three pieces of wood on four sides ). Since I was already in the middle of the production, so I decided to move forward with these four shelves first and then return to make the fifth one. Turns out in the end, I did not had the time to make the last shelf. So that was a lesson learned about preparation and planning.

Chapstick Flash Light

I was fidgeting my chap-stick and twisting the knob with my hands as I brainstormed ideas for the flashlight in my mind. Gradually, I started to digress my attention to the chap-stick and was intrigued by the system lies inside the seemly simple-everyday object. Not long after, I started to discover the potential of turning a chap-stick into a flashlight.

My idea was to adopt the twisting mechanism that already lies inside the stick tube. Basically when you want to apply chapstick, you would turn the knob on one end and the parts inside would twist and push the stick upwards. Same idea for the flashlight. A coin battery attaches to the parts inside and a LED light bulb attaches to the cap. When you turn the knob clock-wise, it pushes the coin battery upwards to meet the light bulb wires that are attached from the cap. Thus you have a completed circuit.

Step 1 : Empty out the chapstick from the tube

Step 2: Attach the coin battery to the pusher


Step 3 + Step 4: Punch a hole through the cap and run LED wires through the hole