As the title says, I'm trying to find the best free CAD program to try and turn my hand drawn scribbles into a coherent design. Any pointers would be gratefully appreciated
This link will lead you to a very good, almost professional, free version of hull software. This is very good but has a learning curve. Again it does all the hull calculations for you. https://download.delftship.net/DSFree.php
For the broad brush of the design any free 2D or 3D drawing software will do. There is no free software that will do the full structural design of a multihull. You can get software that does hull design and another that does beam design etc, but there is no complete package. Designers get paid their money for a reason.
Have fun, draw your ideas, show them to this group for comment, you will learn a lot.
@oldmulti many thanks, I really appreciate your assistance. I've managed to download hullform okay but for some reason when I try delftship it says corrupted file get another copy or something similar. Hopefully I'll figure it out.
One thing I wasn't sure of, do I have to design the main hull and ama's separately or can I do it all on one design.
My plan is to see how far I get with free software and if it looks like a viable proposition upgrade to something paid and more professional at a later date
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