Spooky droids

Knitted BB-8 and BB-9E are ready for some treats.

As you know, Rozenn has done a most excellent job at adding some fiber-art-droid-designs to my office decorations.  She also likes to make sure they are appropriately dressed for the season.  This year, BB-8 and BB-9E are ready for Trick-or-Treat with custom costumes (and matching candy bags).  Remember, if you let your droid go trick or treating, make sure they only get capacitors and ICs for treats; they are allergic to chocolate.

Periodic pillows

 

Rozenn had bought some awesome periodic table fabric (which I got for my birthday a few months back) and she finally had the time to complete a pair of periodic-table pillows for my office.  They are awesome.

There’s still plenty more fabric, so I suspect there will be another set for my home office as well.

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Mathematica catches the heat

I recently purchased the AMG8833 thermal camera breakout from Adafruit.  It’s an 8×8 pixel array of sensors that can be used to incorporate thermal vision into a project.  I’m interested in monitoring a thermoelectric cooler.  Adafruit provides a number of examples on how to interface the breakout with a Raspberry Pi or display connected to an Arduino.  I wanted to try a different interface and see if I could control it with Mathematica.  It took me longer to write this post than it did to write the software.

Temperature of 30×30 mm2 Peltier cooling device being measured with an AMG8833.

Read on if you’re interested in learning more

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What’s growing

Now that my students are wrapping up their summer research activities, it’s time to share some of my new designs.  This one is inspired by my students – they wanted to design and 3D print keychains – and Rozenn’s request to have name tags for our plants.

Rosemary, thyme and sage, with a bit of patriotism to boot.

Read on to see how I designed these, which involved a little bit of magic for the swash ornament.

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Ants Be Gone!

Our hummingbird feeder was inundated with ants. While there are plenty of commercial options available for solving this problem, I wanted to try my hand at designing my own solution. In thinking about how a water trap should be designed, I came up with the following critical elements.

  1. A leak-free cup for the water (duh)
  2. An upper attachment point that prevents tipping of the cup
  3. A lower attachment point that is integrated into the monolithic design.

Here’s the result.

I’m not fast enough with the camera to take a picture of a hummingbird.

 

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