Canon EOS R6 hot shoe dual cold shoe bar
A T-shaped bar that slides into the hot shoe of a Canon EOS R6, R6 Mark II or R50 and offers two cold shoes side by side, so a Rode VideoMic GO II and a small Aputure MC or Godox LED can ride on top at once. The foot is a standard 18.7 mm ISO 518 shoe with 2 mm flanges and a thumb-tightened M3 locking screw, the bar is 130 mm wide and 14 mm thick with the cold shoes 90 mm apart, and each shoe has 0.2 mm clearance plus a 6 mm spring finger that stops accessories rattling. It fits any standard shoe, including Nikon Z and Fujifilm X-T5. Print it flat with 3 mm walls and 40 percent infill.
Bought brackets are either too short or fixed to the wrong side. In SpeakCAD you list the accessories and their spacing, preview the bar in the browser without paying, add a 1/4-20 boss underneath in the chat, then download the STL.
Create a hot shoe accessory bar 130 x 25 x 14 mm with a standard 18.7 mm shoe foot and 2 mm flanges plus an M3 thumb locking screw, two cold shoes 90 mm apart with 0.2 mm clearance and 6 mm spring fingers, a 1/4-20 threaded boss under each shoe, and 3 mm walls, for a Canon EOS R6.