Technique for drawing bulkheads from drawings?

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davehal9000
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Technique for drawing bulkheads from drawings?

Post by davehal9000 » Sun Jan 15, 2017 1:24 pm

I have a set of three view drawings and want to turn them into bulkheads to use in building a physical model.

Any inexpensive and easy to use computer programs or services that do this?
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Sluis Van Shipyards
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Post by Sluis Van Shipyards » Sun Jan 15, 2017 8:57 pm

If you already have a program to do the drawings and print them, I've seen people use that sticker printer paper. The print it on there, stick it to the plastic sheet, then cut it out. Then you either have to sand off the sticker or find a solvent that won't eat the plastic, but will clean the sticker off.

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davehal9000
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Post by davehal9000 » Sun Jan 15, 2017 9:47 pm

Trying to develop the plans in the first place. Have 2D drawings, trying to create the bullkhead drawings
Warned you we did, but listen you did not! Now screwed we all will be!

Yoda,
The Lost Hope

What the hell is an Aluminum Falcon????

"Just because you don't like something doesn't mean no one else should get to have it."

Penn Jillette

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Sluis Van Shipyards
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Post by Sluis Van Shipyards » Mon Jan 16, 2017 8:12 pm

Ah, I misunderstood. I've seen some 3D programs that will chop the model apart into bulkhead like layers. Hopefully someone else will chime in.

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davehal9000
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Post by davehal9000 » Mon Jan 16, 2017 9:36 pm

Have seen Sketchup mentioned. Would think there has to be something simpler
Warned you we did, but listen you did not! Now screwed we all will be!

Yoda,
The Lost Hope

What the hell is an Aluminum Falcon????

"Just because you don't like something doesn't mean no one else should get to have it."

Penn Jillette

kenlilly106
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Post by kenlilly106 » Mon Jan 16, 2017 10:08 pm

I'm not aware of any program that can take a set of 2D plans and turn them into bulkheads.

If you had a 3D model then you can cut sections at whatever points you want with the software.

So depending on your skills and what software you have you can either redo the 2D plans into a 3D model and section from there, or make projections of the 2D plans in 2D.

Ken
(drafter/engineer for nearly 30 years)
Last edited by kenlilly106 on Mon Jan 16, 2017 10:34 pm, edited 1 time in total.

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Post by naoto » Mon Jan 16, 2017 10:22 pm

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Migmaker
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Re: Technique for drawing bulkheads from drawings?

Post by Migmaker » Fri May 19, 2017 10:36 am

While its not exactly simple, if you have it, use a computer aided Drafting tool, or could always hand draft. Depending on the views you have, all the information you need is there, you just need to extrapolate it. To make a lofting, I use side elevation and top elevation and a 45 degree intersection line to get what I need. If the subject is symmetrical, only one half is needed, then mirrored to produce a symmetrical bulkhead...side elevation gets vertical slices every time the contours change. So depending on the subject and scale, you would "slice" up the elevation . Each one of these slice lines intrersect with a line on the drawing producing a point from which to extend a line to. So an Autocad program works, or something similar.
If you can dream it, I can build it, and probably already have......:) William

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Re: Technique for drawing bulkheads from drawings?

Post by naoto » Fri May 19, 2017 11:26 am

You should also be prepared for the occasion that you might come across drawings that look OK in the views, but might not make sense if you try to translate into three dimensions. Take for example the capsule (often referred to as Icarus by some fans -- though the name was never mentioned in the movies IIRC) from the Planet of the Apes. The intersection between the chines and the conical hull is often depicted as a straight line (it should be a slight curve). Similarly, the shapes of the windows and the "cove" (i.e. the "dent" or "cutout" into which the forward viewports go) are often drawn with the wrong shape.
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