Step 5: Cut Your PVC

Time to cut the PVC - YAY!!
What we're doing now is making a protective edge for the screen as cut aluminum tends to be sharp (if I showed my cut finger, I would have to give this a PG  rating, and I don't want to be all edgy-like).  I'm sure there's a better way to do this, but I used a Dremmel on 1" PVC pipe.  Here's your goal:  To use as small of a diameter PVC as possible (small size makes it easier to cover comfortably with pillows) and to cut a THIN line down the length of the PVC for the screen to slide into.

*TIP: If using a Dremmel, take it SLOW (the movement, not the speed).  I went through quite a few cutoff discs before I realized a slow hand at a medium high speed was the best, otherwise the disc broke FREQUENTLY
*TIP 2: make sure the child this is for is not around for this part, because 12 broken discs on 2 pipes will teach new words to said child
Good concept. I take it that the conductivity of the urine is letting all the power for the bell run trough the screen + urine? This could be a small shock-hazard, the coil in the bell could give some feedback that raises the voltage to a level where it could potentially give a small electric shock. A low-ohm electronic trigger would be a better choice. Number 6 on this page of touch triggers is the simplest one <a href="http://electroschematics.com/5996/touch-switch-circuits/" rel="nofollow">http://electroschematics.com/5996/touch-switch-circuits/</a> but most should work.<br>
My concern about the shock led me to use a 9v instead of a transformer (you can feel a charge from a 9v on a wet tongue because it's so sensitive, but not a wet part of your skin). <br>We used it for about 2 weeks before we didn't need it anymore, and no shock was reported. Your idea does add an extra layer of protection though - thanks for that!<br>Cheers

About This Instructable




Bio: Ryan Barnes is an actor, musician, and entertainer and is the oner of Ryan Barnes Productions. His hobbies are music, theatre, reading, and creating.
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