Boat CAD documentation, advices, How to.



What measurement system uses BoatCAD Metric or Imperial ?
BoatCAD uses just units. If you accept 1 unit as 1 mm, you have Metric system.
If you accept 1 unit as Sixteenth of an inch, you have Imperial system.
 
How to create blueprint for plywood boat.
To do this is very simple. Just create a boat with parametric curves. On sections set tension close to 0. This is all.
 
Keel shape with NURBS curves
First 2 boats "Keel with 5 control points", "Keel with 6 control points", are for sail boat or contemporary yacht.
The boat with "Keel with 6 control points" is the same as with 5 control points. Adding 1 more control point make keel line more flat. You can add more control points
"Keel for motor boat" it have place for the propeller.
The last is for "Keel classical - old style yacht".
You can do it with all 4 wizards for NURBS boats. Watch the videos for more details.
 
Keel shape with Parametric curves
You can create a small propeller arc just for the propeller, larger or just to use this arc to amend the shape of the keel.
In generated Excel file you will have 50 point on the arc. You can make it by this points.
 
How to create straight line ?
On reality you need only part from the curve to be straight line.
Start with step 1 and continue with next steps. Just click "Add" button for control point. As more control points in straight line as longer will be straight the part from the curve.