Walter Simmons

[Walter Simmons]

You’re quite right, and having built boats for 40+ years, I am well familiar with lofting by batten. I am also becoming more and more familiar with DS, and it’s really quite an astounding program. What really perplexed me, though, wass why when offsets were output by DS it was unable to recreate the same hull later on.

Obviously, there are ways around it that work just fine. I was just concerned that I was missing something basic. All in all this has been quite a transition for a builder like me who began designing using actual half models. It is proving to be well worth the time and effort, however.

Thanks.

[Walter Simmons]

Convert to decimal feet.

Length 27′ 3 1/2″ = 27.2917
Beam 8′ 6 3/4″ = 8.5625
Draft 2′ 3 1/2″ = 2.2917

That should do it.

[Walter Simmons]

I can’t tell whether no one else is interested in this topic or whether no one wants to touch it.

For anyone who might be interested, there is a solution…but it’s ugly. You can subdivide the control net and then manipulate every other plank to allow for a 3/4” increase in height (the lap width) along the upper edge. After developing those planks, go back and repeat the process for the remaining planks and develop those as well. Those files can then be exported. And to carry it a step further, the files can be combined, re-imported into TurboCAD and output as a dxf.

TC allows for an edge offset. DS is such a feature-rich program that I had hoped that there was a similar feature somewhere within, and that I was simply unable to locate it. Apparently not.

In a related question, why is it that when the profile view shows the starboard side of the vessel that the plate (plank) development arrays the planks with the bow to the left? Curious.

Thanks.

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