utcminusfour said..
CAN17,
I taught myself Rhino on the job after training in the fundamentals of CAD at school. It is not rocket science but I would not call it easy to model freeform shapes like boards. I can tell you that I have been exposed to most of the software at this point and Rhino IMO is the most user friendly and is the best value. I still am to this day learning new moves in Rhino. Foils and foilboards have been some of the most challenging things I have modeled and that is after twenty years in the boat design industry. What I did for you took me 15 minutes. But that is because the shape is so basic and I kept it as simple as I could. To get a fully flowing and fair shape like your wizard takes considerably more time and knowledge to create from scratch. That said once you have it built it is easy to edit. If I were starting from the beginning and only was interested in board design I would consider one of the tools specifically for board design because you do not have to learn how to model the surfaces you just have to learn the user interface. You have to spend money and time learning whatever you choose. I keep working with Rhino because unlike the board specific tools I can model anything in Rhino.
I can also tell you that cut outs are a massive time sink, both to model and build. Yes, a bag is a good idea even without the cut outs.
In my own board building projects I have kept the shapes really simple even though I have the skill to draw more complicated shapes I don't have the skills yet to shape them by hand. I view my foiling designs as a very broad brush approach for the purpose of learning the basics of design in this new field. The marketing info we are fed is often conflicting and I am sorting out the BS this way. With each project I am sharpening things up.
If you keep you shapes simple like you have so far you can use basic area times thickness calcs to get a reasonably close volume number just like NicoDC did for you. You can draw on graph paper to do this either to scale or full size by glueing it to your cardboard shapes.
It is hard for me not to want to model this for you (I love this stuff!) but it would not be fair to my customers. I only have so many hours I can spend behind the screen before my eyes say stop. I need to spend that time finishing the work I already have on my plate.
Keep charging and creating mate!
Second that. Try shape 3d, it is free and there's a warehouse with templates to give you a starting point and some guidance. Be ware that shortening a 220cm board template to a 166cm board template would render the rocker pretty much useless. Also you can check the website "le guide du petit shapeur", he's a French shaper that shares the s3d files from his boards.
I don't use a cnc for my boards. First I get a (basic) digital file to help me with the rocker template and outline templates. It also helps to give you and idea on the rail shape, but I tend to just look at the board and go from there.
the way I calculate my board volume is pretty easy, all you need is the foam density, a scale and google to fin the formula. Density = weight / volume so volume = weight / density or (in case of my last board) 0,09 m3 = 1.8kg / 20kg/m3 so that's 90 liter.
if all to complicate know that a 20kg/m3 blank that weighs 2kg, is 100l.
i never measure in pounds etc, so sorry for that.