DIY Making

An Excel grocery checklist template

Being in an unfamiliar setting can lead to epiphanies, big and small. Travel is great for this. For instance, I first learned about cargo bikes when I saw one in Brooklyn on a work trip.

In 2012 I stayed in an apartment that had a physical grocery list hung on the kitchen wall. It listed common items – apples, eggs, etc. – and had arrows you could flip to note that you needed something.

I liked the idea. It solves the tricky problem of trying to see in your fridge the things that aren’t there, providing a checklist instead. But you can’t take it with you to cross things off and it’s hard to modify the items as your needs change over time.

So I made an Excel version of this checklist, organized by section of the store and with space to write in custom items. I’ve tweaked it over the years and it’s worked great.

In the spirit of knowledge sharing, I’ve posted it for others to download and adapt. It’s not “open-source” because it’s a Microsoft Excel file. But I share it in that spirit. It should be accessible to regular people who want to make a customized grocery list. I hope someone else can benefit from the time I spent tweaking the formatting!

(don’t judge me for the list contents, everyone is different)

DIY How-to Repair

Watch repair: metal spring bar tore a channel in a Casio G-Shock end piece

For Hanukkah 2008, I received a new watch from my wife. (I don’t remember the watch before that). It was particularly magical in my job as a high school teacher. After the first bell of the day rang, it was 4 minutes to the start of school, then 46 minutes per period alternating with a 4-minute passing period. Like clockwork, so to speak.

The watch had a auto-repeating countdown timer that I set for 50 minutes and would almost always successfully synchronize with the day’s first bell. That would mean that at any point during the day I could look down and see precisely how many seconds were left in a class or passing period. I could walk the hallways and announce “27 seconds!” or count down “5-4-3-2-1” and then the bell would ring, with me the only person in the school who had that level of precision. There’s probably something there for another post but I digress.

After years of daily wear and companionship, I received a smartwatch as a gift and stopped wearing the digital watch. Then I went from the FitBit to a Basis and then a Garmin. At one point I realized I’d fallen into a consumerism trap and sought to go back. The notifications were disruptive and the data I was generating was useless to me but creepy in the hands of Big Tech. I tried to go back to the Casio, but it had a problem. (Remember the torn-out spring bar in the page title? This post is about the torn-out spring bar).

Each strap is attached to the end piece / bezel by a spring bar. In the course of replacing a broken band and with wear and tear over time, the spring bar on one strap carved a channel from the hole it sits in. With slight force, the strap would pull the pin out through the channel and detach from the bezel. (If this post wasn’t an afterthought I’d have a “before” picture). This person appears to have the same problem, though they too did not post a picture.

DIY Work

Measuring CO2 accumulation during phone meetings

I am part of the remote co-working community Workantile, in downtown Ann Arbor.  We have small private rooms for taking conference calls and I often find them stuffy and notice I’m tired by the end of a meeting.  I’d read that excessive CO2 build-up in meetings can impair cognitive function.  Was that the case, or was I just bored from the meetings?

I borrowed an Indoor Air Quality Meter from my amazing local library (by Sper Scientific, normally $400, for me, $0) and went to find out.

DIY How-to Making

Installing a top of stairs baby gate without drilling into wood trim or banister post

The challenge: in an old house with nice woodwork, mount a baby gate at the top of the stairs such that it’s secure – without damaging the wood.

baby gate at top of stairs
The final product

This was a fun project.  Got some ideas from YouTube videos (a learning format I usually dislike) and improvised a little.  This is built from scrap parts I had on hand, plus a baby gate I had installed at our previous home.

The uneven surfaces presented by the trim on both sides pose the creative challenge.

DIY How-to

Configuring Enphase Envoy for wifi without ethernet cord

This is a how-to for connecting your Enphase Envoy (the oval one with the LCD screen) to connect to a home Wi-Fi network, without using an ethernet cable or the Enphase Installer Toolkit app.

Enphase’s how-to guides give you about 80% of the information you need to do this, below are notes on things I figured out to fill in the other 20%.  Their guidance is geared toward installers, while this post is for homeowners who want to connect their Envoy to the home Wi-Fi network and don’t have a WPS button on their router or need to use another option.

DIY Homebrew Making

DIY Hops Trellis

I started growing hops at my parents’ home in Chicago in 2008.  In the summer of 2011 we moved them to Michigan and I built this trellis:

hops trellis
Hops grow from the frames on the right up the lines to the tree on the left

Now that it’s time for the trellis to find a new home, I’m writing up my design for posterity.  Notable aspects include that it can be harvested without ascending a ladder and that the top is mounted on a tree.

Each of the three hop plants (Cascade, Mt. Hood, Centennial) has its own starting frame.  It runs up the yellow chain for 5 feet, then starts climbing a line up into the trees:

closeup of wood hops frame
Overgrown vegetation shows I’ve lost interest

DIY Making

Improvising an AC/DC wall wart adapter

Yesterday I had a nice maker win that felt like validation for time spent building confidence in the basics of electronics.

The problem

The situation was dire.  The Medela Pump-In-Style breast pump was needed immediately.  We found the old pump but couldn’t locate its battery pack or AC/DC adapter.  It was late and local stores were closed.

The hack

On I found the specs for a replacement Medela adapter: output 9V, 1000 mA.  Rummaging in my to-be-recycled electronics pile, I found a 9v 1000mA power adapter from an electric pencil sharpener I’d used as a high school teacher.  But its prong was too small for the Medela.

More rummaging turned up an adapter prong that did fit, this from the power adapter to an old Asus RT-N16 router (12V, 1.25 amps).  I cut each adapter’s cord in half, stripped the wires, attached them with crimp-on butt end splices – noting that the positive wire on each pair was marked with stripes –  and voila!  The pump worked and saved the day.