For 3D design work I used 123 Design (Abandoned Autodesk Project that was eventually merged into Fusion 360) in the past and it soon became apparent that this was not really up to the task.
So first step was to start using Fusion instead. I tried it out and found it was not a big learning curve from 123D to get what I wanted from it. Having said that, there was still a bit of a learning curve and I am only just now (2 months on) starting to get good results from it.
I also considered that just doing the deck for the existing project was not much good for someone who did not just happen to have a hull lying around. So as part of the learning curve, I included the hull files as well.
The hull is not as good as I would like, but I also have to balance out that I don't want to spend 2 years designing it.
The Bears extended MK3S has a print volume of 25 X 21 X 31 and at 1.27 metres, I can't print the hull in one piece, Must admit, that
CR30 is looking good!This means, the hull has to be printed in sections and, as I hate supports, created the sections to keep supports to a minimum.
Joining the sections, without a built in part locking system (which usually means supports) is a bit tricky, so I thought I would try joining them with an "interface" part. This allows the parts to be joined with sufficient surface area to keep it watertight (if you want to make it an RC version) and also provide enough rigidity to keep the sides from accidentally being crushed in while handling the model.
As an example, between the Hull Piece 1 and Hull Piece 2:
Attachment:
File comment: Hull 1 and 2 Pieces
Hull 1 Pieces.jpg [ 42.71 KiB | Viewed 1290 times ]
Becomes
Attachment:
File comment: Hull 1 Glued
Hull 1 Glued.jpg [ 47.81 KiB | Viewed 1290 times ]
I'm also suspicious of layer separation in 3D printed parts in the Z plane. I added capacity for additional strengthening in the form of a 3 X 20 mm length of flat, There is also provision also for longitudinal strengtheners at deck level.