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Moxis

Scanned bulkhead drawings into vector format?

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Every time I start a new project I have wondered how easy it would be to scan the bulkheads from drawing, have them converted into vector format and then scale them in CAD & finally cut the bulkheads with a CNC mill. But all the programs I have studied need enormous work to clean all the unwanted pixels from the drawing. I wonder if there exist any programs that make this cleaning automatically?

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As far as I know there are no programs that will give you a 100% conversion without some manual touch up.  I found it was easier to scan what you want insert the scan directly into CAD, scale it, and trace over the underlay.  On bulkheads and frames etc you only have to trace half and mirror the other side.  This way you can correct any errors in the original.

 

Don

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Hi Moxis

I have used this in the past and it did a pretty good job. It seems to have a lot more features now than my older version and claims to be able to distinguish between characters and object shapes. They have a free trial that you can use to see if it does what you are after so you don't have to put any skin in the game to find out.

https://www.scan2cad.com/

Cheers Pete

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Yes Bill, I have tried that. However the result was that there were so many rubbish pixels even in the drawing of one bulkhead which had to be cleaned one by one, so that it was not worth the work. So I did my bulkheads in the old school method by making first a template of all bulkhead halves, drew the complete bulkheads on plywood using those templates, and sawed the bulkheads away. Much faster than clean those rubbish pixels.

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There is an intermediate method: scan the body plan with sufficient resolution and then import the picture into your (2D) CAD-program. You then can draw in another layer each bulkhead/frame half by tracing the scan with a vector line. It is useful, if your program has a spline-function or similar to smooth the hand-drawn curves. A graphics-tablet is also useful, but I have done it with the mouse or even a track-ball/-pad. Making the drawing big helps to even out the inaccuracies of tracing.

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