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Title: Hand of Ozymandias |
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Date: 2012-03-23 |
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Category: Projects |
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Summary: A withered hand I welded out of scrap metal. |
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|
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I was visiting my cousins in Radium, BC and decided to learn stick welding at |
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their shop. I wanted to create a sculpture, so with pieces of scrap metal I |
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welded together this hand. The beads are far from perfect. Working with small |
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pieces of rusted metal made it difficult. |
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 |
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|
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## The Name |
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One of my favourite poems is [Ozymandias](https://en.wikipedia.org/wiki/Ozymandias) |
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by Percy Bysshe Shelley. It's about the inevitable complete decline of all |
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rulers and the empires they build, however mighty in their time. This is the |
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hand of Ozymandias sticking out from the sand, grasping for life after he has |
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been reduced to dust. |
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|
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## Construction |
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I eyeballed the joint angles and my cousin cut them to spec with an angle |
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grinder. It was made in a machine shop with no real planning done ahead of time. |
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In between welds, I used my own hand as a reference. Below is a picture of me |
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adding a bead to it. |
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Title: My First Review |
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Date: 2010-12-03 10:20 |
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Modified: 2020-05-09 5:12 |
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Category: Review |
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Summary: test |
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[TOC] |
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Following is a review of my favorite xyz. |
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asdfasdfasdfasdf |
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|
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## header |
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test test |
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|
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``` |
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this is a code block |
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<html> |
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</html> |
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``` |
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|
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### smaller header |
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hello world |
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|
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#### Tiny header |
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paragraph |
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##### mini header |
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paragraph |
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|
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### how to install |
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update packages: |
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|
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``` |
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sudo apt update |
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``` |
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|
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install packages: |
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``` |
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sudo apt install qot |
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``` |
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clone the repo: |
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|
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``` |
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git clone https://example.com |
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``` |
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all done! |
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Title: LED Dress |
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Date: 2016-03-18 |
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Category: Projects |
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Summary: A dress made out of LEDs that twinkle like stars |
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A friend of mine was attending a stars and constellations themed ball. She |
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wanted to wear a dress that was lit up with LEDs acting as twinkling stars. |
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Seven of the 28 stars are aligned to resemble the Big Dipper constellation and |
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twinkle differently than the rest, which twinkle in a random pattern. |
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 |
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|
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## Construction |
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The LEDs came from that strip that was cut up and soldered together with very |
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small wires. Each of the LEDs can be controlled individually. |
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 |
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21 of the stars are light magenta in color and twinkle by fading randomly. The |
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seven LEDs that form the Big Dipper continually scroll through a gradient of |
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three colors. Instead of calculating the values of each color in the gradient as |
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the program runs, a lookup table is used. |
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|
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<center> |
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<video autoplay muted loop> |
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<source src="{static}/videos/dress/dress3.mp4" type="video/mp4"> |
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Your browser does not support the video tag. |
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</video> |
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</center> |
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Title: Remote Control Light Switch |
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Date: 2014-10-09 |
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Category: Projects |
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Summary: A device to toggle my lights remotely. |
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I wanted the ability to toggle my bedroom light remotely for convenience. I |
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designed a circuit that allows me to control my light with any |
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device that can load a webpage. |
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I still wanted to be able to control the light manually, so I bought a metallic |
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face-plate and turned it into a capacitive touch sensor. The slightest touch |
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anywhere on the plate is enough to toggle the light. I had to electrically |
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isolate the metal screws from it because they screw into a grounded switch box. |
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 |
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|
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## Function |
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I have a Raspberry Pi ($35 computer) on my home network that runs a web server. |
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When you connect to it in your web browser, a page loads with buttons to turn |
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the light on or off. When you press a button, the server executes a command that |
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sends a message over Bluetooth to the light switch. The Bluetooth module in the |
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wall receives this message and forwards it to the microcontroller, which |
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processes it and toggles the relay. The whole circuit is also powered from mains |
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by an AC-DC converter. |
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This entire process happens quicker than half a second, so it feels instant. |
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Title: Man’s Reach Exceeds His Grasp |
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Date: 2012-04-11 |
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Category: Projects |
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Summary: My first attempt at painting with acrylic. |
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The painting is called “Man’s Reach Exceeds His Grasp”. I've always wanted to |
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try painting and thought I had a good idea, so after a couple of drawings I |
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attempted to paint it. I eventually got it framed at Michaels. Many thanks to my |
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friend Laura for the opportunity to do this, I couldn't have done it without her |
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help. |
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 |
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## The Meaning |
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It’s hard to see in the photo, but the moment the water touches his hand it |
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turns into sand and is taken by the slight breeze. The title is a quote from |
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Andrea del Sarto, a poem by Robert Browning. It is also said by Nikola Tesla’s |
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character in my favourite movie, [The Prestige](https://www.imdb.com/title/tt0482571/). |
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“I, painting from myself and to myself, |
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Know what I do, am unmoved by men’s blame |
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Or their praise either. Somebody remarks |
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Morello's outline there is wrongly traced, |
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His hue mistaken; what of that? or else, |
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Rightly traced and well ordered; what of that? |
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Speak as they please, what does the mountain care? |
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Ah, but a man’s reach should exceed his grasp, |
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Or what’s a heaven for?” |
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– Robert Browning from *Andrea del Sarto* |
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|
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## Creation |
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I started with the background, trying to make it blurry and out of focus, then |
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slowly progressed to the foreground. The hands were drawn in pencil and painted |
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in. It was quite difficult to get the blending and shadows perfect, but I had |
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Laura to tell me when things didn't look right. Below I am trying to figure out |
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what a hand looks like in a mirror. |
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Title: Automatic Plant Waterer |
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Date: 2014-06-05 |
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Category: Projects |
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Summary: A device that automatically waters plants. |
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One day I decided watering my lone plant was too much work, so I automated it. |
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It's also great for when I'm on vacation. The plant is a year old now and |
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doesn't look as good as when it was younger (kinda like you). So this machine is |
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like its life support. |
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Update: this plant died long ago. |
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 |
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|
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## First Attempt |
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The design was very simple and soldered together on perf board. A |
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microcontroller turns the pump on for 20 seconds, then waits 24 hours and |
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restarts. The pump ran way too fast so it was slowed down to 10% power. |
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This design suffered from a fatal problem. After running, there was a chance |
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that the tube would stay full of fluid. If the water level in the pop bottle was |
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too high, it could siphon out. I woke up with a flower pot overflowing with |
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water a couple of times. |
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 |
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## Second Attempt |
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I liked the idea so much that I made a second iteration. This one used a custom |
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printed circuit board with a lot more features. The pumping duration could be |
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adjusted with a screwdriver. This was useful as the plant (now a |
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[Ming aralia](https://en.wikipedia.org/wiki/Polyscias_fruticosa)) grew. |
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|
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Another feature was the ability to run the pump backwards. This completely |
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eliminated the siphoning problem from before. After pumping for a set duration, |
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it would run backwards until the tube was cleared of water. |
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Title: Solar Car |
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Date: 2013-04-27 |
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Category: Projects |
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Summary: About my time volunteering with the University of Calgary Solar Car Team, where I designed a maximum power point tracker. |
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I joined the University of Calgary Solar Car Team in my first semester for a |
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chance to learn things, gain practical experience, and meet people that share my |
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interests. The car was the top Canadian team in a 3000 km race from Darwin to |
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Adelaide, Australia in 2011. We met up at a shop on campus every Saturday |
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morning to work on the new Generation IV of the solar car. |
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 |
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## The Helianthus MPPT |
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I was in charge of designing and assembling the MPPTs (maximum power point |
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trackers) for the new generation solar car. An MPPT extracts as much power out |
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of the solar cells as possible. The solar array operates less efficiently |
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without them. The Generation IV car, Schulich Delta (pictured below) uses seven |
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of them: one per section of solar cells with similar lighting conditions. Andrei |
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and I designed the MPPT above. |
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