author
1Instructables3,507Views7Comments

Tell us about yourself!

Complete Your Profile

Achievements

  • tallbob completed the lesson Ripping Wood in the class Table Saw Class11 months ago
  • tallbob commented on Radical Geezer's instructable Build the Best Tomato Cages Ever!2 years ago
    Build the Best Tomato Cages Ever!

    Nice cages, but I'd strongly recommend going for cedar instead of pressure treated wood. It'll be more expensive, but you won't have to worry about chemicals leaching into the soil and being picked up by the plants - and cedar, properly treated, will last longer than the pressure treated wood you can get today, too...

    View Instructable »
  • Salvaging Rechargeables for Projects

    Note: while your image shows a 2032 cell and says it isn't rechargeable, you can in fact get rechargeable Li-ion versions of these cells. They are rare, though.http://www.batterymart.com/p-lir2032-lithium-ion-cr2032-coin-cell-battery.html?gclid=CjwKEAjwgZrJBRDS38GH1Kv_vGYSJAD8j4Df6NultEpKUUzo42LwXvqRu31fRP33pbH5tLz-8e2TPRoCevDw_wcB

    View Instructable »
  • tallbob commented on seasider1960's instructable Laundry Room Monitor2 years ago
    Laundry Room Monitor

    I considered a humidity sensor, but if you use dryer sheets, be aware that they could lead to a coating building up on the sensor in the exhaust that would interfere with humidity readings. Most dryers actually simply measure exhaust temperature, as the sensors are relatively unaffected by this and there is a noticeable change in the temperature as the evaporative cooling effect diminishes as the clothes dry - charts I've seen online actually show a pretty dramatic change. Of course, if you're using low heat and the resistance heater is cycled on and off, you probably see less of a jump and detecting the proper end of the cycle would be harder - probably would need to get some logic in to ensure that a sudden rise in temp isn't misinterpreted as finishing the cycle when it actually is...

    see more »

    I considered a humidity sensor, but if you use dryer sheets, be aware that they could lead to a coating building up on the sensor in the exhaust that would interfere with humidity readings. Most dryers actually simply measure exhaust temperature, as the sensors are relatively unaffected by this and there is a noticeable change in the temperature as the evaporative cooling effect diminishes as the clothes dry - charts I've seen online actually show a pretty dramatic change. Of course, if you're using low heat and the resistance heater is cycled on and off, you probably see less of a jump and detecting the proper end of the cycle would be harder - probably would need to get some logic in to ensure that a sudden rise in temp isn't misinterpreted as finishing the cycle when it actually is just the heater cycling on.

    Love this - oddly enough, I was starting a similar build, with a lot less detail except for one area where it would do more - My dryer doesn't have an auto dry setting for any temp other than high heat. I'd like to have it incorporate a setting that would send a notification when it determined that the load was dry or nearly dry, even if the dryer timer still had 15/20/30 minutes left on it. This should be possible through monitoring the exhaust temperature, as that will start rising as the moisture level in the clothes drops. Perhaps I'll build along your lines, and try to make that modification...

    View Instructable »
  • tallbob made the instructable DIY Lightbox build with Ikea Lack table.2 years ago
    DIY Lightbox build with Ikea Lack table.

    I chose a different table color, used reclaimed plexiglass from a scrapyard instead of new clear acrylic (still used new white acrylic for the top layer), and used a string of RGB LEDs on the inside off that came with its own remote so you can change the color as you like - the receiver for the LEDs is in the middle of the light field, and it can easily receive the signal from the remote when you point the remote at the table top.

    View Instructable »
  • tallbob's instructable Stuffed Animal X-Ray Machine's weekly stats: 2 years ago
    • Stuffed Animal X-Ray Machine
      1,918 views
      20 favorites
      4 comments
  • tallbob commented on tallbob's instructable Stuffed Animal X-Ray Machine2 years ago
    Stuffed Animal X-Ray Machine

    Glad you enjoyed it. I hope I didn't make any mistakes in my instructions, but if they don't work, please let me know.As for turning it back on, yes, I just unplug and plug it back in - the shutdown card turns the pi completely off. I've considered retrofitting a toggle switch and wiring it in between the power adapter and the pi to allow cycling the power without unplugging it, but so far it has worked fine for us as is...

    View Instructable »