Boat lofting

Rhino
1

Hi there,

I’m new to Rhino as I’ve become interested in boat design. I have used SW for many year and I will say I did not realize how new things can be so hard to learn. I have imported a simple 10’ boat design I have sketched in SW that I’m hoping to loft and create flat patterns for. I have attached it maybe someone can have a crack at lofting it and give an explanation on how they did. My attempts have been un successful.

Thanks

boat rhino.3dm (50.9 KB)

2

You can achieve it with Sweep2

3

This is perfect and very encouraging!

I will follow along thanks so much!

4

Will the boat be built from plywood or aluminum? If so you may want a developable shape which will unroll without distortion.

5

I’m still having a problem with the sweep 2 rails function.

After splitting the line shown on the video at .40sec I’m selecting sweep 2 rails then then ChainEdges in the command prompt. I have tried selecting the sketch lines in the sequence in the video but I cant seem to grab the second line every time. If I do I get an error “unable to order shapes on rails” Any tips?

I’m building in aluminum. I’m an experienced metal fabricator but am still learning boat building, and computer lofting. Hence starting small. I will read into developable shapes more David.

6

I create a second-degree surface and attach points to the previous one.

7

Hi Reagen, I took your lines to see if I could make something from them . Although I did something ,it may not be what you want . Give 10 people a tape measure and you could get 10 different lengths. So I built with your lines some surfaces and then flattened them with UrollSrf. Then used 2PtOrient to align them. What a person could do next is (if you have a large scale printer) make a small model using those flattened surfaces (maybe 1:5 scale). Depending if your going to make this hull in 2 or 4 pieces , take your printed lines of the surfaces and transfer them to a 100 lb. paper and cut them out . Reroll them back into the form you modeled to see if the model is what you want .You can use masking tape or hot glue gun to join the edges. —Mark
boat rhino.3dm (273.6 KB)

8

After you select two curves as the first set of ChianEdge for Sweep2, you need to press Enter to continue selecting the second set of ChainEdges of Sweep2

9

Thanks for the help, I was able to get it to loft!

10

I have been playing with carboard models for awhile, plotting them at scale on my cnc table. Excited to try some more designs now!

11

Hi,
Try command: -devloft for good developable surfaces if you want to build in aluminium
boat rhino surfaces.3dm (158.4 KB)