Foundations Engineering

08/17 Drawing in Engineering

Free Draw shapes

Box with thick walls

Phone Holder

Phone Speaker

09/07 Drawing in Engineering

Cylinder

CAN

YES

Vases with Lines

Detailed Hollow Cube

4 Hollow Cubes

09/21 Drawing in Engineering

Curved objects

Cylinders

Three Prisms

Slanted objects

Box Project

Box build process:

Sketching - I used a pencil, paper, and a ruler to sketch an image of what I would like my box to look like using one-point perspective.

Table Saw - I used the table saw to cut the sides of a long piece wood to ensure that they are equally smooth.

Band Saw - The band saw assisted me in cutting this long piece wood into two thiner pieces.

Planer - I used the planer to make sure the wood is smooth and to create an even surface on both sides.

Miter Saw - I then used the miter saw to cut the wood into the dimension indicated in my sketch of the box

Biscuit Joiner - The biscuit joner assisted me in joining the cut wood pieces together to ensure that the front, back, bottom, top, and sides were the width indicated in my sketch.

Clamps - The clamps helped eliminate any space or gaps between two pieces of wood that were glued together after biscuit joining.

CNC - I used the CNC Router to engrave my name to the the front of the box.

Sanding - Sanding helped smooth and polish off any excess glue, and to ensure a smooth flat surface.

Wood Putty - After assembling the box using wood glue and letting it dry, I used wood putty which is mixture of wood glue and wood dust to fill in any holes or gaps in my assembled box.

Finishing Process - I used the orbital sander again to smooth any rought edges, excess glue, and any imperfections before staining with the "English Chestnut" stain using a piece of a rug.

Adding Hinges - To add hinges to my box for it to able to open and close, I used a drill to drill a hole where I wanted the nailes to go, and then I used a screwdriver to attach the hinges in place using nails.

What is Craftsmanship and why is it important when you are making a product?

Craftsmanship is how well a product is done or made. Craftsmanship is important in business because well selling a product, for example, customers will look for the uniformity of the product and they would want a product that would work as intended.

a.) Rate your craftsmanship on your box from 1-10 and give specific resonas for your rating.

I would rate the craftsmanship of my box a 9 out of 10 because I stained my box evenly, sanded all sides of the box evenly, leaving no rough edges. I also used wood putty to fill in any holes and ensure a smooth surface. However I do believe that I could have a better job with the craftsmanship when creating the lid for my box, making it more evenly aligned.

Pictures of my Box

Back

Front

Bottom

Side 1

Top

Side 2

Reflections

I am well satisfied with how my box turned out. I am most proud with how evenly my box is stained and how I sanded all the edges to make sure there are no rough or bumpy edges. I also like that my box includes a lock to keep the box closed at all times. What I found most challenging of this project was clamping the box together because I didn't use the nail gun and only used glue to make sure that there are no nails creating rough edges. I overcame this challenge by only using a little wood glue each time and clamping one piece at a time. If I could do this project again, I would be more careful when sanding the lid of my box to make sure that it alings a little better with the box.

Homecoming Lantern project

Homecoming Lantern

I made a homecoming lantern based on the 2000s theme for homecoming. I desided to create a DJ mixer inspired lantern. I incorporated lines, shapes, and patterns for the elements of design.

Coasters

I designed coasters for a christmas present using different types of wood. The person I am gifting these coasters are to a family member who also enjoys drinking tea. These would make a perfect gift.

Thihini Nagendran - Scrap Wood or Wood Coaster Design Challenge

Infinity Mirror Project

We were assigned with creating an Infinity Mirror or Table which allows us to improve our sketching, coding, and designing process.

Our design should be free standing and no electronics should be visible except for the lights and a button for the switch. We will use function in our code and navigate Mu IDE to master basic python code.

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6 lights blinking in succession

Above you can see my six lights installed in a piece of cardboard that I created on Onshape to hold my lights. You can see that my lights are blinking in order as well.

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Circuit Python Code

Above you can see a screenshot of the CircuitPython code that we used to get our lights to blink. We We also added comments so that we understood the code.

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Light Patterns

On the left you can see my six lights installed in a piece of cardboard that codes an output of a light pattern in which they go the opposite way in addition to always going forward. The lights also go from top to bottom chaser (both sides) and back to top. Left right alternating. All on, all off blinking.

Physics of the Infinity Mirror

An infinity mirror works by creating an illusion through the use of two mirrors placed parallel to each other with a light source in between them. There’s a mirror in the back, some LED lights around the middle, and a translucent mirror in the front. The light between the two gives the illusion that the lights are infinite. In order for us to see the lights, we apply physics to the infinity mirror because a luminous object such as the sun produces photons and an incident ray hits the mirror and a reflected ray hits your eyes. Another luminous object such the LED lights creates a slight refraction to the bottom of the mirror and a reflected ray hits your eyes for you to be able to see the lights. The box is covered by opaque or non-luminous cardboard because cardboard does not produce light.

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Infinity Mirror Protype

To create my prototype for the infinity mirror, I used makercase to easily download and choose the length/width for all 6 sides of a rectangular prism. After downloading, I transfered the file into Inkscape to create 3 "holes" for 2 of the sides of my rectangular prism using the circle tool on Inkscape. I then downloaded the file as an SVG file and uploaded it into glowforge. I used cardboard to cut all sides except for the top in which I used clear acrylic to cut out the top. I then started to assemble the box with a glue. On the bottom, I glued down silver reflective window film with the silver side facing up. On the piece of acrylic (the top), I took the peel off of another piece of reflective window film and had the translucent side facing towards me (meaning that the silver side would face down and when the box is closed the light will bounce off of the two mirrors) giving the "infinity effect." I also used tape to attach the LED lights to my prototype.

Idea Development Sketch

For my infinty mirror I wanted to create an octagon. I wanted it to be 10 inches long and 10 inches wide. I decided to use the laser cutter instead instead of the CNC machine as the the dimesions would be supported by the laser cutter. For my cut list I decided that I want an acrylic top, 8 sides between the middle layer and the top, as well as 6 side layer for the back to hide the picko.

Laser cut my cut list

After creating my desired design on Onshape which is an octagon with the dimensions listed in my cut list, I used the Laser Cutter to cut out all the sides and the middle layer with the correct length and width.

Glue the pieces together

I used wood glue to glue the 8 sides together. I didn't glue the sides to the middle layer just yet because before I do so, I have to first paste the mirror film to the middle layer to ensure that the mirror film does not have any glue on it when I attach the sides to the middle.

Paint the Inside black

I used black paint to paint the insides of the side of my octagon black because this would help me see the lights better in a dark interior. I would later sand the outside to make my project more appealing.

Cut Mirror Film

I used an exacto knife to carefully cut out a piece of mirror film that fit the shape of my octogon. I then cut out a little more off each of the 8 sides because this would help the "sides" of my infinity mirror better stick to the middle layer when I used wood glue.

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Getting my Neopixels working

Using the code provided by Mr. Ayers on Github, I was able to get my neopixels working. To connect the three wires to the neopixels, I used a soldering iron to carefully melt the soldering wire. This would then be connected to my pico meaning that I can edit the code to display a different pattern.

The code for Neopixels

I downloaded the code from Github and pasted it on to my code.py on my pico. This would erase the code I previously had. This code has patterns that we can edit based on our preferences and how many neopixels we need for our project.

Clamping Middle and Side Layers

I made sure that the middle layer with the mirror film had a little cut off the sides to ensure that I can glue it to the rest of the layer. I then clampled all of the layers together.

Applying mirror film to top

I used an exacto knife to carefully cut a piece of mirror film to the size of my octogon. I then removed the back of the mirror film to be able to paste it to my piece of acrylic without glue. To push out the air bubbles, I used a scraper.

Attaching the neopixels

The neopixels already had a sticky adhesive so I pasted it along the inside of my octogon.

Driling a hole to hide the pico

I drilled a small hole in the inside to be able to hide my pico.

Black stain

I stained my project black to give it a uniform look.

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Video of Project

The steps to the creation of my infinity mirror are listed above but here's a quick summary. After drawing my sketch and cut list for my octogon shaped infinity mirror, I used Onshape to create my design using the exact dimension. I had laser cut six layers for the sides and one middle layer using the Glowforge. I also cut out a top using acrylic material. I then glued all the sides together and painted the inside black. I then cut out a piece of mirror film and used a glue stick to paste it to the middle layer. Next I soldered my neopixels to the wires on my pico and used the code provided on Github to edit the colors to my liking. I glued together the sides to the middle and clamped them together. I used a plastic scraper to carefully apply a piece of mirror film to the top of my infinity mirror, and used slow, precise movements to avoid air bubbles. For the last few steps, the neopixels already had a sticky adhesive so I pasted it along the inside of my octogon. Then I drilled a small hole in the inside to be able to hide my pico. I stained my project black to give it a uniform look. And I put the acrylic top on my project, and my infinity mirror was done!!

Planter Project

Idea Development

I wanted to design a modern propagation station with 2 layers. One that is stained brown and one that is not. I want it to look like a honeycomb using hexagons. I also added 2 holes so that I can hang it on a wall with string.

Onshape file 1 (Bottom layer)

Prototype

Onshape file 2 (Top layer)

Build Process:

After I drew my cut list, I used Onshape to create a file of the design. I created two files, one with the negative space cut out, and one without. I also had 3 hexagons cut out to hold the test tubes. This allowed my design to have two layers. I also had text that says "Practice makes Progress" to communicate my message of growth.
I then used the Glowforge to laser cut my design. I used cardboard since this is just a prototype.
After I was satisfied with my prototype, I used medium brasswood plywood to cut out my design.
I stained the top layer to create a contrast from the bottom layer, and after it had dried, I glued the two layers together. I then glued the 3 hexagons to the holes to hold the test tubes. I clamped together my project before I put the test tubes in.
I then filled the test tubes with water and put plants in them to complete my project.

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