I am trying to model our dinghy in Maxsurf. As I thought with the table of offsets and the AutoCAD plan, it is possible to 're-construct' the dinghy in Maxsurf.
The first step is to add a surface and resize it according to the table of offsets.
The second step is to set the frame of reference and the zero point. select Fwd extend for the Longitudinal and DWL for the Vertical Datum.
The third step is to construct the design grid.Add sections, buttocks and waterlines, and change their labels and coordinates according to the table of offsets.
The fourth step is to shape the surface following the table of offsets:
4.1 add control points at each station
4.2 move control points in the half breadth to shape the deck line
4.3 move control points in the profile to shape the sheer and canoe body
4.4 According to my original plan, it is time to use buttocks and waterlines to shape the surface. As I have input value for waterlines and buttocks, the Maxsurf already generated them in the model:
Here comes the problem, I do not know how to shape these waterlines and buttocks. I tried to construct several new columns and rows of control points to shape waterlines and buttocks, but this does not work.
How can I use these waterlines and buttocks to shape the hull? Or there are other ways to shape the hull in maxsurf?
I have no idea but I do know how to draw it on the floor, I probably need both these days however in the event of a power outage i win with a pencil.
Posted by: Vaughn Tucker | 08/23/2010 at 07:40 PM
How is it ? In these designing programmes you as a designer model the surface. The surface has the control points atteched to itself. So the Waterlines and Buttocks and Sections are produced off this.You do not use these to control the surface. i also struggled at first with this concept, and it was only when I realised that I was in controll of the surface only, that it made sense.You are doing work way in advance of what is required, but if this helps you in your understanding of the topic then keep going.
Posted by: clovegro | 08/27/2010 at 08:32 AM
Hi, Chris, thanks for explanation. So the design process is design the surface first, and then produce buttocks and sections. In Maxsurf, you can not reverse this process (as what I was trying to do, to recreate the surface by existing data). If you can only control the surface with control points, it is almost impossible to recreate the dinghy, because you can only manually move those control points to a similar position but not the exact position. Is that right?
Posted by: Wei Shi | 08/27/2010 at 09:26 AM