Chapter 8 Trimming Surfaces

Up to this point we have worked with only one surface at the time. Maxsurf Pro allows you to insert any number of surfaces. Maxsurf Plus allows the use of up to 6 surfaces and Maxsurf/T allows 3 surfaces. By combining surfaces, complex models can be created.

Before you proceed and use trimming surfaces to make some more modifications to your design, read the section “trimming surfaces” from the Maxsurf manual. From this you should remember:

Trimming Rule #1

The trimming rules in the manual are very important. For this section of the training manual we will only highlight the importance of rule #1: closed intersection lines. In order to be able to trim a surface, the intersection line that divides the surface that you wish to trim up into separate regions has to be closed.

The intersection line does not go all the way up to the deck edge. The hull surface can therefore not be trimmed to this transverse surface….

… whereas now the intersection line divides the hull up into two separate regions:

Trimming Sequence

The following diagram is also useful to see again in this training manual:

Note

It is important to note that after you have taking step 2, you have to do steps 3 and Step 4 as well. Maxsurf will continue to ask you to select your regions and trim the surface until you finished Step 4.

Continue with the first application for trimming: Trimming a transom.