Tripod mono foot or spreader.

cults3d

Tripod foot compatible with Manfrotto, Vinten, and Sachtler tripods featuring dual spiked feet. The part comes equipped with a bungee cord or flexible clip (included STL file, printed in flexible plastic - e.g., TPU), but even a few strong elastic bands can do the trick. Designed to support the tripod with a 50mm M6 bolt that goes through either the ball or cylinder support. Prints include cutouts for fitting bars to create a full three-leg spreader. The part comes with ferrules to glue to the ends of 5 or 6mm cord, but making a loop using crimp clips for cord is the best option - search eBay/google: "(bungee, shock) (sleeve, ferrule, crimp)". In the photo, I used 6mm bungee cord cut to 150mm (6 inches), marked with a pen and bent at 115mm (4.5 inches), plus 25-30mm of 0.2 wire for the crimp, and then covered the ends with shrink wrap to tidy them up. If you make a spreader: use 10 or 12mm M5 countersunk bolts (spaced 25mm apart) in the holes/nut cage of the print, and two 12mm aluminum bars for the spreader arms.