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Posted

My dad spotted this one towards the latter end of 2015. Information board said that it hadn't long been acquired by the company.

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Posted
Purely as a matter of interest, could the data from this kind of imaging be used to create a model using a 3D printer?

 

Like this?

 

http://deep3d.co.uk/2016/03/31/dolly-varden-model/

 

ABS model sitting on my dining table as I write. The Dolly Varden is currently under restoration, so we scanned it beforehand, as a record of the "as is". The control point measurements were used during the build of the model to add real world values to the alignment of the images.

 

And the original scan:-

 

https://sketchfab.com/models/94305ff714b2451eb40591e821a2a438

 

I have not measured the physical model yet to check scale - I simply told the printers to "Print it in one go as big as you can" and its about 280mm long.

 

Next step will to be print in metal.

 

Hope this helps?

Posted

That is truly excellent, so you do not have to actually measure anything at all when you gather the data! Do you think that the time to gather the data this way is comparable to doing it by measurements for what is quite a complex shape?

 

trevor

Posted
That is truly excellent, so you do not have to actually measure anything at all when you gather the data! Do you think that the time to gather the data this way is comparable to doing it by measurements for what is quite a complex shape?

 

In the case of the Dolly (And the Stalwart) I took a few key measurements between the control points we placed before the scan. You can see the control points on the Stollie load bed - white squares with black targets printed on them. For the Dolly, two measurements along the length of the hull, one across the stern and one from deck towards the keel were recorded and used to scale the build.

 

What you do not have to do is take hundreds of measurements. To measure the curves and recreate the hull shape of the Dolly would be very time consuming. Underwater its even worse as we have a time limit of gas supply and (if deeper) decompression stops.

 

So we can take a very complex shape and scan it. Things that cause real issues are anything with a lack of texture (no points to detect), any reflective surface like glass (ditto) and anything that moves between frames (schooling fish and swaying seaweed).

  • 7 years later...
Posted
6 hours ago, Mark Ellis said:

I do, @radiomike7. And ? 

Ron is in Australia he has a thread ultimate forward control on Aus Land Rover forum. You have more chance of getting him there

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