I made this to mount two Raymarine i70 instruments to the mast of my sailboat. The Fusion 360 model is included which is parameterized, so you can adjust it to fit instruments with a different mounting pattern.
I printed this out of ASA-GF filament on a Bambu Labs X1C. It uses about 350g of filament for a cost of roughly $15 of material. You might want to print it out of PLA first to see if it works for you.
I mount it to the mast using M5 stainless bolts which go into handmade barrel nuts that are 10mm in diameter. The barrel nuts slide into the sailtrack on the mast.
There is an open cavity behind the instruments to pass lines or other hardware between the deck and boom.
The author marked this model as their own original creation.
