Spool Holder - Wall Mount (Optimized for Hatchbox 1.75mm)

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Simple and easy-to-print modular wall-mount spool holder. Instructions Innovation can strike at any moment, and it happened to me while I was going about my morning routine as usual. I looked over at a standard toilet paper holder on my right and, three hours later, this model was completed in CAD - this design is a remix of nearly every toilet paper holder used in North America. The humble toilet has been a source of inspiration for many a bright idea. This modular spool holder is designed to work with any 1.75mm Hatchbox brand spool (or any 8" diameter spool of the same width). Spool Example: http://www.amazon.com/Hatchbox-1-75mm-3D-Printer-Filament/dp/B00J0ECR5I/ref=sr_1_1?ie=UTF8&qid=1442862294&sr=8-1&keywords=hatchbox+pla The assembly consists of three printable parts: spoolbracket-RIGHT.stl (Right Bracket) spoolbracket-LEFT.stl (Left Bracket) spoolbracket-base.stl (Wall-Mount Base) I have also included the .STP CAD file for those who want to modify and edit the 3D data in a CAD software (spool-holder-assy.stp). Assembly Notes: The parts are held together with six 14mm M3 screws. I always get my stainless steel button head screws from Mcmaster-Carr. Here's a link to order them: http://www.mcmaster.com/#92095a168/=z1d7m5 The six mounting holes in the base are sized for M3 tapping (they print at 2.5mm dia.). Once tapped, the holes accept M3 screws perfectly. If you don't have a drill and tap set, I highly recommend that you do, and you can get one here: http://www.harborfreight.com/metric-drill-tap-deburr-bit-set-95529.html. The bits both drill and tap the hole to the proper size in one simple operation. The larger three-wall mounting holes in the base are designed to be finish-drilled with a 4.5mm bit (or equivalent). One inch or three-quarter inch PVC can be used as the reel pin. I used three-quarter inch PVC cut to 3.75 inches and it works perfectly. All three parts on the finished spool holder shown in the images were done with eighteen percent infill and black Hatchbox PLA. They printed up wonderfully.