SnapSand - quick reload sanding block

Break-action sanding block

Open. Load sandpaper. Close. 

SAND IT!

Your sanding block experience has never been easier.

USE:

Before first use, to open the hinge:

1. Hold the sandpaper half by both sides in the middle
   • Holding this half in the middle works better than holding it near the lock
2. Grab the handle with your other hand
3. Push the handle up and the other half down to open it.
4. It might be tough/rough on the first try but it will quickly wear itself down and become comfortable
   • The lock is not supposed to be strong and grab the sandpaper but only make the tool find its comfortable place and keep itself straight and closed. Most of the work is done by friction of the sandpaper itself.

Current sizes are for a sandpaper piece about 80mm long. 

RECTANGLE 15mm fits a ~55mm wide strip of sandpaper

ROUND 15mm fits ~50mm wide strip of sandpaper

of course more is not a big problem

warning:  ROUND 12mm has very thin walls and i honestly doubt it will survive. I just made it as its the smallest size i could go without changing the handle (square) size.

WANT A CERTAIN SIZE/SHAPE? 

• Comment your request!

EDIT: 

• Fixed hinge on triangle
• Added hexagon and half hexagon (you may also simply cut a part of the triangle but be aware there is a cavity around the hinge)
• Added ROUGH version - has a much larger gap for thick (rough) types of sandpaper

HOW TO PRINT:

Originally i planned on the round body to be printed in a vertical direction but since the layer lines are weak and variable layer height made a very good job at keeping the shape in horizontal and it takes ⅓ less time to print i decided to stay with that.
 

• Tolerances are currently 0,3 and should be printable just fine.
• I tested with 3 and with 4 perimeters, i would suggest not to go bellow that.
• Utilize variable layer height if you can
  • Makes rounds more round and everything looks cleaner
• Make sure the bridge area is perpendicular to the body and goes cleanly from one side to the other
  • I had to choose “keep bridges and overhangs” and have a bridging angle of 0°
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ORIGIN:

After i found this idea of a sanding stick i could not resist transforming it into a 3D printable design.  I haven't been able to find any design like this in the 3D printo-sphere yet.

I made sure to include all of my favorite features like a print in place hinge and a clicking lock mechanism to keep the sandpaper shut (original has no lock).

Inspired by whatever this is, so feel free to use it as a tutorial: