Weatherproof Box for Wireless Tag for mailbox door

thingiverse

This box and lid keep water out of the indoors-only motion sensor tag http://wirelesstag.net/ that signals when the door is opened or closed. There is a custom bracket screwed to the hinge along the front of the door (part of a repair of the door, in this case), which bends around the edge of the door and provides a place to cement this box. The box is ABS, 3D printed, so acetone cements it well. This method keeps the tag outside the box, for a stronger signal. Instructions The box design is an AutoDesk Inventor Part file. I print the box and lid from ABS using a 3D printer, and then suspend the pieces in a cool acetone vapor (paint can lined with paper towels sprayed with acetone) for 25 minutes to seal the surfaces to make them waterproof and shiny. Too long a vapor bath can cause distortion of the lips, where the condensed fluid may accumulate (they're open side down in the vapor, held on a bent wire stand).