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Hex bit holder enclosure for 12 screw bits with rotating clip

Bit holder for 12x hex bits.


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Bit holder for 12x hex bits.
My problem with other bitholder designs on Thingiverse was that they were either too stiff, or that bits kept falling off. Most commercial designs don't have these problems, but have a complicated full enclosure with live hinges that break too easily.
I fixed these shortcomings by using several design features:
* separate 'springy' clamps to hold each bit
* a rotating clip that secures all bits from falling off, even when this thing is seriously rocked.
* the hinges are made of two sping-loaded M4 screws
The hexes are fairly stiff when printed in PLA 100micron on my UM2.
Your experience on other printers may vary, so i included the Rhino .3dm file for you to edit and remix as you want.
UPDATED v0.12:
* introduced variants for spring washers ("f" variant) or 3d printed springs.
* introduced variant with clip ("f"variant) or without ("h" variant
* made a video: 

Materials and methods

Printed on my UM2 in 0.1micron
Infill: 0.2

Prints well in ABS or PLA.

Please do not use a brim! It is very complicated to get that off the bottom part (accidentally printed it with one).
As the adhesion surface of both parts is pretty big, you can probably print it without a raft as well.

- Mount the parts together with spring-loaded screws
I use M4 DIN 7380 half-round head screws with a 2.5mm hex and a length of 10mm.
- Use rubber O-rings 3x1.5 or a few spring washers to get the necessary spring load and travel for the clip mechanism. Or alternatively print the stl with the integrated springs.
- You don't need to tap the holes. Just use a little force until the screw grips into the plastic and then tighten them.



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5e8ac1baad3a962ef4237737d6f1fe57?default=blank&size=40Gurmeet Singh Athwal added this to the Tools collection ago
Mini werkstattDavid Burkhardt published this design ago