Magnetic Bit Holder - Parametrized

by Nudel_P, published

Magnetic Bit Holder - Parametrized by Nudel_P Apr 21, 2010

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Parametrized Magnetic Bit Holder In 2 Parts

No more misplaced bits! Sandwiched design with strong 8mm magnets. You don\'t have to glue the magnets in place (and thus spoil them) if you don\'t want to.

The supplied .stl files are made to fit two rows of five magnets, put together in pairs for increased strength (20 magnets in total). All parameters can be changed in OpenSCAD.

The 8mm magnets are available at dealextreme.com.
100 pack - $5.96 - http://www.dealextreme.com/details.dx/sku.13518
20 pack - $2.36 - http://www.dealextreme.com/details.dx/sku.4248

I'm working on a experimental version which clips together, needing neither glue nor screws, hopefully. We'll see how that works out...

This is the first time I use OpenSCAD, how did I do?


I don\'t have a printer, yet, so these instructions are just how I imagine it coming together.


Put the magnets together two and two, and align them as illustrated. - They will probably sit better, and are easier to handle if they all have the same polarity.

Put the printed bottom part on a metal surface and insert the magnets. - The magnets will hold the piece in place. If the magnets don\'t want to cooperate, you can use a tiny piece of tape.

Put on the printed top. You can choose to glue the pieces together, or use screws. I think I\'d prefer to use screws and attach it directly to a wooden shelf above my workspace.


Alternatively you could simply superglue a magnet directly into the hole in the top part, and not print the bottom part at all. It might be necessary to make the hole a bit deeper in OpenSCAD though.


Be warned that these magnets are pretty strong, so be thoughtful of what you put them on.

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I had a few ideas, for other peoples reference (since screwing them to the wall necessitates screws hehe)

  1. Turn it into a single piece print, then pause the printer after it's drawn the magnet holes. FAILED: Turns out the extruder like to attract magnets
  2. Use thicker magnets, with holes in the center – more magnetic force, and you can clip/melt/screw them via the holes.
  3. Leave a gap (print sideways) and slide the magnets in.
  4. Just use one big piece of metal as a base, and just whack some magnets on that.
  5. Make it double sided (magnets in the middle) – still requires screws
  6. Make it 3 or more sided, then insert a solid inner piece to keep the magnets in place.
  7. Buy a single 1 inch circular magnet, and build the holder to fit over/around it – I have issues in SketchUp with intersection, else I'd do that myself, I already have the magnet!
    Damn I love magnets.
    Nice idea by the way, I would never have thought of it.

Why not use some 8mm magnets to hold it together ;^)

Don't know if these magnets would be strong enough for that. I intended for it to be mounted to a wall, but use it any way you like. :)