Notes for Mantra

• Your first objective is to open the mainsail and tailwing assembly in the integrated wingsail folder in the CAD and figure out where the center of mass is currently (look up how to do this in solidworks, you will need to set materials for parts with semi accurate densities)
• Then get a weight estimate for the payloads we will be putting on the counterbalance (pi pico microcontroller + mount, wind vane (Fiona should be getting the accurate mass for that)
• Then figure out how far away that weight would need to be to balance the CG over the center of rotation (if it is really far away, it will need to be moved closer and extra weight added)
• Right now the carbon fiber tube will only extend a certain length past the wingsail, see if everything will balance there with only a little extra weight, if not we may need to order more carbon fiber tube to extend it
• Then you can figure out how to mount the counterbalance to the carbon fiber tube (look at the existing designs for clamping to the tube in the wingsail CAD)
• It will need a mounting system for various payloads (probably use heated inserts to create threaded holes and space for the wires to travel into the carbon fiber tube
• Maybe have a 4 hole mounting pattern on four sides of a rectangular prism-like shape, with space to add additional weight on the end
• Also, you can make a mount for a Pi Pico microntroller that will go in one of the docks, with some kind of shell to protect it from the elements

Design Requirements

• Allows adjustable attachment of weights in front of the wingsail
• Versatile bolt patterns for mounting wind vane and Pi Pico microcontroller
• Allows wiring from any sensors/microcontrollers to travel into the carbon fiber tube

Constraints

• As lightweight as possible while serving balancing function
• Preferably built with parts we already have
• Must attach to 16mm OD 14mm ID carbon fiber tube