Magnetic tent wall mount for webcams in tent enclosure

This design is for mounting a webcam outside the printer and at some distance, for an overall view of how a print is going. The mount is designed around the Logitech C9xx webcams (c920, c922, c925, c930), but can likely be used with other webcams that mount with a single standard camera bolt.

This is actually a really useful way to mount a webcam inside a tent enclosure.  I like it better than the various ones I've used (and designed) that mount on the printer.  I'm surprised this model hasn't gotten more response…  If your printer is inside a tent enclosure, I strongly recommend using this for your webcam.
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Ideally you would want one camera monitoring what the nozzle is doing and another to view the entire printer bed while the printer is printing.  This model is for the camera monitoring the full bed.  If your printer is enclosed in a tent, the furthest the cam can be is on the wall of the tent, so this locates the webcam there.  A tent enclosure wall is thin enough that two plates with embedded rare earth magnets can clamp to either side of the fabric for mounting a webcam.  This method allows maximum freedom for webcam placement, and the webcam can mount at either the top or the bottom of the mount plate.   I mounted mine at top of the mount and placed the mount to the right side of the door flap about half way to the top to get the entire bed into the view.

Parts Needed

• For this design you'll need 
  qty 8 orI10 neo magnets, each 12mm diameter x ~2.5mm or more thick.  The magnets are very strong, probably only 8 are really needed.  Even 4 might do.
• The magnets are glued into the indents/pockets of the two clamping surfaces using superglue or two-part epoxy (which is what I use).  
• You'll also need a standard camera mount bolt, usually ¼ inch x 20, and about 9 or 10 mm long.  An stl file for that bolt is also included here.

Printing and assembly

In order to keep the surfaces where the magnets will mount as flat as possible, print these parts in the orientation as provided, using organic supports.  For printing the clamping plates, use 4 outer walls and 25% infill for strength.

Printing these is pretty easy.  The only complication is handling the magnets!  They want to stick to each other fiercely, and it is hard to keep them oriented when they are apart.  Here's a trick: 

1. Stack all of the magnets together then mark an X on the magnet at one end of the stack, using a felt tip marker.  
2. Pull off the marked magnet from the stack without changing the stack's orientation.
3. Put an X on the magnet that previously contacted the one that you just pulled off.
4. Repeat 2 and 3, until all magnets are marked.
5. Mix up your epoxy glue on a disposable surface.
6. Put a little mixed glue in the bottom of each indent on one of the clamp plates.
7. Stick a magnet in each pocket, with the X-marked ends down (hidden)
8. Do the same with the other clamp plate, but with the X-marked ends of these magnets up (showing)

Wipe off any glue that might interfere with the magnets clamping, then let the glue harden.