Cold Shoe <> ARCA Adapter

Got some flashes for studio photography, wanted to attach them to tripods I already had on hand that have ARCA quick-clamp heads. Here's a 3D printable adapter. I think it's important to print this as shown so that the cold shoe retaining tabs are printed in their strongest orientation. I printed this with enough perimeters to be 100% solid (albeit made of perimeters).

I sized this for the cold shoe + tightening wheel on my GODOX flashes. Hope that's standard! 

Updates:

• 260220 - R04:

  • Removed the shelling from R03 but added a drafted hole for installing a 1/4-20 heat set insert (McMaster 94459A736) since some attachment systems may utilize this instead of ARCA.

  • I didn't make the part taller, so it's a pretty short insert! Some 1/4-20 mounts may need to be spaced to not drive the screw up into the cold shoe.

  • I have not yet validated this design. Will update if I end up needing it and trying it out.

• 260217 - R03:

  • Reduced thickness of the retaining tabs from 1.5 mm to 1.0 mm to match the thickness of the cold shoe metal bracket on cameras.

  • Seems strong enough but it's thinner than before, so I'm leaving R02 up in case that's still useful.

  • R03 also has some slight tweaks to make the entry geometry a bit smoother (gentle lead-in in the XY plane, some small fillets)
    Shelled it out to a 3mm thickness to save some material. Still seems plenty stiff!\

  • 260220: I've been using R03 on a couple tripods for a few days, and it's working great!

• 260216 - R02: First release (R01 didn't make the cut 😂)