Now that I have a new deck of my own I've restarted an old project I worked on almost a year ago.
The drawing I made then was too thin for the 3-point mount that I have now on the P3-24 so I had to start all over again.
I finished it today and printed it in scale to try on the deck. This required a nerve wrecking dismount of the arm. I am now calming my nerves with a pint of Guiness
I learned though that the RB301 (and I guess all arms with 3-point mounting) does not have the 32mm diameter on the cylinder that goes down in the plinth, on this one it is 22mm.
This is how it will look like, I will mark and drill the holes for the M3 screws on the 3-point mount after manufactory because the angles and measurements is just too damn hard to get on CAD.
Notice that the picture above shows the new design with smaller hole and narrower form compared to the following pictures.
The plan is to have the brace be laser cut out of 6081 hardened Aluminium, as soon as I can get someone near me too do it cheaply enough
Big thanks to watercourse for giving me the proper measurements and replying to silly questions via e-mail.
Any suggestions that may improve the design is most appreciated, especially RP3/6 owners.