Laser-guided Bullet-Time GoPro rig

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This case is useful any time you want to use a laser to point a GoPro, but it was specifically designed for building arrays of GoPro cameras to do time-slice (or "Bullet Time") videography.  Bullet Time shots were made famous by the movie The Matrix.  See an example Bullet Time video here: For Bullet Time videos, you need multiple cameras, and each one needs to be carefully lined up to get a good result.  For best results, you also need a remote trigger so that all of the cameras are in sync (otherwise, it is a serious pain to line up each video file frame-by-frame). Here's an example of how a video looks without the sync cable and with slight misalignments: ... not bad, but not as amazing as the first video. The back of this case is open so that you can attach a bullet time sync cable (http://cam-do.com/products/bullet-cable). Small tabs on the top and bottom of the case prevent the camera from sliding out the back. There is a mount on top for a 9mm alignment laser.  Any 9mm diameter laser module will work, but for close-up shots, I like to use the Quarton laser crosshair module (http://www.amazon.com/gp/product/B00BP42YMW).  If the camera is more than a few feet away from the target, you will probably want to just use a laser dot instead of a crosshair, because the crosshair is not very bright from a distance.    This case was designed with OpenSCAD, and it was successfully printed and test-fit on a Lulzbot Taz4.  The case fit a Hero3 and a Hero3+.  I do not have a Hero 4 to test with, but feedback would be appreciated.  I am still printing the rest of the cases for my array, and my sync cable is still in the mail, but I will try to throw in a picture of my camera array and maybe a sample video of the results when it is all finished.   Andrew Moore San Antonio, TX 1 December, 2015

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amoore

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