DIY Projects

Make: Projects – Permanently stain PVC pipe any color you want

Make: Projects – Permanently stain PVC pipe any color you want

I love PVC pipe: It’s weatherproof, cheap, commonly available, easy to work, and easy to join temporarily or permanently. Apart from a slightly icky environmental footprint, the only serious drawback of PVC pipe is that it’s ugly, owing largely to the fact that it’s usually available only in white, off-white, gray, or (sometimes) black. PVC can be painted, sure, but getting a good finish requires careful surface preparation, and even then the paint tends to flake or wear off with time, weather, and/or handling.

But, as you’ll know if you’ve ever tried to remove a purple primer stain, it is possible to indelibly colorize PVC pipe. I got curious about what was in purple primer, and a bit of digging revealed that it’s just clear primer plus purple dye. I reasoned, then, that I ought to be able to make my own “purple primer” in whatever color I wanted by adding solvent dye to clear primer. Long story short: It works, and it works great. You can read all about it here.

Handmade LED wristwatch

Handmade LED wristwatch

Who makes an anachronistic-but-who-cares steampunk LED wristwatch from scratch? Eric Schleapfer does. Nice work! Yes, it’s an LED steampunk wristwatch! It uses the LED wristwatch board… The watch is constructed from a small piece of oak and pieces of brass sheet and tubing. I used hand tools, a Dremel tool and a cordless drill to shape and form each of the pieces.

Back to the watch. It keeps the time with a fairly pedestrian PIC16F628A. It has an internal timer that operates with a separate oscillator (which is the watch crystal in the lower right corner) which can run even during sleep mode. This is critical to keeping the power consumption low. When a timer tick occurs, it generates a wakeup event, and the processor can increment the internal timekeeping registers. The processor can also wake up when one of the buttons is pressed. When that happens, it turns on and starts multiplexing the LEDs so that it can display the time. After a short delay it goes back into sleep mode. I haven’t yet calculated or tested the battery life.

Build your own KOSHO Sukkah

Build your own KOSHO Sukkah

For the holiday of Sukkot, Jews construct temporary shade structures (sukkahs) and occupy them for one week. This year, Sukkot starts on Wednesday, September 22, and this coming Sunday, the Sukkah City: NYC event commemorates the traditional DIY building holiday by raising 12 sukkahs in New York City’s Union Square Park. Designs for the sukkahs […]