Dual Raspberry GS/HQ camera holder/mount and stand

Started as Pan/tilt camera holder, this Dual Raspberry GS/HQ camera holder/mount (for Pi5) turned out to be good enough for tripod mount, without originally planned external holder.

Use with two GS cameras (Global Shutter) is only Raspberry camera option with new libcamera framework allowing for high framerate video capturing (>300fps). A single GS camera can capture 208x96@536fps, 688x136@402fps and 1152x192@304fps:
https://stamm-wilbrandt.de/GS/

Two concurrent GS cameras are capable of (unsynchronized sofar) 688x136@402fps videos:
https://forums.raspberrypi.com/viewtopic.php?p=2199349#p2199291

From this forum thread:
https://forums.raspberrypi.com/viewtopic.php?t=366730/

Original plan was to build a dual camera PT holder/mount like this without motors:

Along the lines of this PT holder for 10,000lm leds (for strobe capturing of supersonic inflight airgun pellets):
https://stamm-wilbrandt.de/en/youtube/led_holder_stand/

Before soldering threaded inserts into left and right side of holder, and before 3Dprinting the outer holder stand, a test of new holder on tripod was good enough:

The 4 GS/HQ camera holes have diameter 2.5mm, I only had 3mm and more diameter screws. I tried to use a 3mm diameter zink coated M3 screw to thread into the 2.5mm diameter brass of GS camera holes. To my surprise it was really easy, with a screwdriver and a bit of force. Even better, no nuts are needed for the M3x10 screws I use — the threaded GS camera holes "are" the nuts!

I decided to 3Dprint the outer dual camera holder stand. As first step I soldered M5 threaded inserts into both sides of dual camera holder. Worked without issues, because the empty cylinders of dual camera holder had exactly the needed dimension per threaded insert mechanical drawing. 

OpenSCAD, .stl and .gcode for outer stand are attached, as well as for the dual camera holder. 

4h29m 3Dprint:

What you see on photo above are two official 6mm Raspberry lenses. Below two videos got captured with 402fps concurrently on the Pi5 seen in background above. 

 

Easiest way for Raspberry GS camera high framerate video capturing is to use GScrop gist. Since yesterday that tool is capable to deal with two cameras connected to a Pi5:
https://forums.raspberrypi.com/viewtopic.php?t=345883&start=50#p2201454
 

I am new to stereo video capturing, but these 3Dprinted parts are a good basis for all experiments to come.