Smaller Simone Giertz's Good Habit Tracker

@sdp8483 wrote in the comments to announce that he had created a 3D printed alignment jig in order to assemble his own Habit Tracker. 

The design holds a column worth of switches and it both pushes the metal case down as well as ensure the separation between columns is fixed.

Here is a picture of his finished Habit Tracker. The switches do look indeed aligned.

The jig can be downloaded at Sam Perry's thingiverse page here:

https://www.thingiverse.com/thing:3018815

And the  soldering continues. It is the same thing over and over and over again. The half way point is reached.

Time for another teaser picture, only three months to go. The LED is on the wrong side of the board, just 

to make a point that it works. 

For the second part of the year, this was the alignment jig. One edge of the inner piece was sanded down so it would fit tight and grab the switch stems. 

A little past midnight, the whole thing is completed. Time for a final teaser tweet. In the next few days we will photograph and create the project page.

250 more switches arrive in the mail... 

Working out a system to keep all the switches in a column aligned vertically.

Experimenting with scrap pieces of laser cut materials, using the straight edges to align the cases and putting two pieces next to each other to align the switch stems

Soldering the switches, the solder fumes visible in the picture.

Trying different LED colors. Eventually Blue won.

And the basic concept works. All of the switches have to be ON for the LED to light up. Time to tweet a little teaser picture...

The solder joints for the first four months. Nothing is bridged, but some of the joints could use a little less solder. I see a few Hershey's Kisses in there.

The first 100 switches arrive, combined with 30 something already on hand. We have enough for the first 4 months of the year.