Boat Design Forums  |  Boat Design Directory  |  Boat Design Gallery  |  Boat Design Book Store  |  Thanks to Our Site Sponsors
  #1  
Old 09-27-2011, 02:03 PM
CC Guy CC Guy is offline
Junior Member
 
Join Date: Sep 2011
Rep: 20 Posts: 12
Location: UK
Had my old boat scanned

HI Guys

I'm new here thought you like to see how my old wreck came out after scanning, I'm looking to use it to input into our cnc router,I ran across this site looking for something had the scan done a months back.

Had my old boat scanned-dsc02368.jpg

Had my old boat scanned-boat_lofts_001.jpg

Had my old boat scanned-boat_shell_001.jpg

Had my old boat scanned-boat4.jpg

Had my old boat scanned-scan_boat2.jpg

Roger
Reply With Quote
  #2  
Old 09-27-2011, 02:15 PM
CatBuilder CatBuilder is offline
Previous Member
 
This is very impressive technology. What do they use as fiducials to keep the scan accurate?
Reply With Quote
  #3  
Old 09-27-2011, 03:04 PM
CC Guy CC Guy is offline
Junior Member
 
Join Date: Sep 2011
Rep: 20 Posts: 12
Location: UK
Hi CatBuilder,

Thanks, as you can see its a hand held scanner that scans over the markers (dots you see) and builds the scan,works with lasers going back and forth, and is very accurate I'm told, you can see the layers of paint on the full size copy, the guy has had to reduce the file size for us to work with in our cad/cam system, as you can see she in bad shape and he scanned the good parts and mirrored to build the full hull and frames, took him a morning to scan,then a day or two to build up the cad drawings.

Roger.
Reply With Quote
  #4  
Old 09-27-2011, 03:26 PM
CatBuilder CatBuilder is offline
Previous Member
 
Ah, thank you for explaining. I thought the white dots were being projected from the handheld device. If they were placed on the hull ahead of time, that makes more sense as a set of fiducials.
Reply With Quote
  #5  
Old 09-28-2011, 06:33 PM
upchurchmr upchurchmr is offline
Senior Member
 
Join Date: Feb 2011
Rep: 579 Posts: 2,396
Location: Ft. Worth, Tx, USA
CC Guy,

Can you tell us the system used for the scan? Commercial name etc?

Marc
Reply With Quote
  #6  
Old 09-28-2011, 10:30 PM
Dirteater's Avatar
Dirteater Dirteater is offline
Senior Member
 
Join Date: Oct 2010
Rep: 300 Posts: 203
Location: Canada
Please tell us the purple ones the paint!

Very cool tool.
Something the Coast Guard should start bringing along. Find those poor souls in the bottom of the boats and stuff.

Still what a great repair tool.
good stuff

DE
__________________
"built a little boat tis all"
http://thegrebeboat.blogspot.ca/
Reply With Quote
  #7  
Old 09-29-2011, 04:41 AM
CC Guy CC Guy is offline
Junior Member
 
Join Date: Sep 2011
Rep: 20 Posts: 12
Location: UK
Hi Guys,

Glad to see you like it shame they can only scan and not rebuild as well,the guy said it was made in Canada, which is where I found the boat and had shipped over to the UK

Lets see if I can get a link to work,
http://www.creaform3d.com/en/handysc...fault.aspx?v=a

If not working search Creaform 3D scanners.

Roger.
Reply With Quote
  #8  
Old 09-29-2011, 11:16 PM
Squidly-Diddly Squidly-Diddly is offline
Senior Member
 
Join Date: Sep 2007
Rep: 304 Posts: 1,185
Location: SF bay
Any hints on what those sell or lease for currently?

Web page is all about "request a quote" and I don't really want to bother them if no way in hell I can afford one.

No worries, I'm sure in 5 years it will be $1000 for even better one.

Do they import data into Solidworks or other CAD as surface, or Solid w/some default back-thickness or what? Thin-Feature?


The website speaks of no more "volume scanning" as a good thing, but doesn't say what VS was. Only thing I can google is office supply paper scanners.
Reply With Quote
  #9  
Old 09-30-2011, 08:27 AM
upchurchmr upchurchmr is offline
Senior Member
 
Join Date: Feb 2011
Rep: 579 Posts: 2,396
Location: Ft. Worth, Tx, USA
I would like to understand what they are basically doing. I don't know how they are relating the measurements between each position of the hand scanner. Having delt with "photogrammetry" which they also reference, I would seriously doubt an accuracy of .004", since the aircraft firm I work for has two systems which make the same claim but neither one can manage two successive scans to get the points within that same tolerance. The photogrammetry system we use cost in excess of $500K.

Marc
Reply With Quote
  #10  
Old 09-30-2011, 08:29 AM
ACuttle's Avatar
ACuttle ACuttle is offline
Marine Design Engineer
 
Join Date: Aug 2008
Rep: 40 Posts: 85
Location: UK
Quote:
Originally Posted by Squidly-Diddly View Post
Web page is all about "request a quote" and I don't really want to bother them if no way in hell I can afford one.

No worries, I'm sure in 5 years it will be $1000 for even better one.

Do they import data into Solidworks or other CAD as surface, or Solid w/some default back-thickness or what? Thin-Feature?

The website speaks of no more "volume scanning" as a good thing, but doesn't say what VS was. Only thing I can google is office supply paper scanners.
The scanner units I've used were fixed, rather than hand held, which cost around £50-70K ($100-140K) - but then you'd only be want to use on for a day to do the boat, so they’re better to hire rather than own.

(I'd guess one of these costs around £20-40K)

Without the scanning experience you would likely want someone else to do the scan for you and process the data. Scanners produce point clouds which then you need to manipulate into meshes and other usable data.

I'm not 100% about what it terms volume scanning but my guess is that it implies that you can perform the scan in a single operation rather than multiple scans which one then stitches together.

<Edit>
Having blown the picture up I can see that it isn't using targets, rather they are light spots. If there are no control targets and one still has a high accuracy level then it is a very smart machine and likely more dear for it.

<Previous Comment>
A downside of this method would be the small targets placed on the model, I would expect that it uses this to continuously reference its positions so every angle of scan is controlled. From experience I can say that sticking on the multiple targets is a pain in the ***, especially for any vessel larger than the one shown. With a fixed scanner one can get away with only 4-6 control points, which can be external from the target object.


Either way it's an impressive bit of kit and scanning technology has come on greatly in the last 10 years.
__________________
-Drew

Last edited by ACuttle : 09-30-2011 at 08:38 AM. Reason: Second thoughts.
Reply With Quote
  #11  
Old 09-30-2011, 09:31 AM
Squidly-Diddly Squidly-Diddly is offline
Senior Member
 
Join Date: Sep 2007
Rep: 304 Posts: 1,185
Location: SF bay
I've been hoping for a simple scanner using a single digital camera twice.

Have two tripods set up, then some 'sweeper' similar to a regular laser-level to paint the surface with a grid. Instead of just horizontal and vertical lines it should throw out a GRID of lines every 1/2" or cm, so the camera can take a nice pic of how these lines bend as they fall on curved surfaces.

Take two pics (one from each tripod) and feed the date into a computer to get a decent idea of the shape so you can then model parts from a surface of complex curves using CAD.

Not meant for documenting archeological artifacts, but good enough for boat hull shapes or autobody add-ons, or quickly getting all the interior dimensions of a space into a CAD program.

Reply With Quote
  #12  
Old 09-30-2011, 10:47 AM
CatBuilder CatBuilder is offline
Previous Member
 
So when will people be scanning in boats and trading designs peep to peer, like music, videos or anything else that can be digitized?
Reply With Quote
  #13  
Old 09-30-2011, 11:24 AM
upchurchmr upchurchmr is offline
Senior Member
 
Join Date: Feb 2011
Rep: 579 Posts: 2,396
Location: Ft. Worth, Tx, USA
The typical use will be for people to get their new boat checked to see if it is twisted, warped, hollowed, etc, so you can get some quality control on the builder.
Expensive boats will get more expensive, racers will demand it no matter what, cheaper boats will come with reams of disclamers, lawyers will get more rich, and everyone will debate wether it made any difference.
A few will use them for historical documentation but hide the data, since it cost them a lot.
The state of Texas had a photogrammetry system demonstrated to document an Indian cave dwelling. It only took 4 days (the equipment had to be backpacked into the site), was correlated with color photos so you could tell what the point data matched and was apparently a great success. No noticeable use of the data and no followon uses of the technology.
This seems like such an interesting and usefull technology, but typically costly and requiring experts in the data useage.
I bet some Olympic sailors are using it to get their boats absolutely fair.

Marc
Reply With Quote
  #14  
Old 09-30-2011, 11:27 AM
upchurchmr upchurchmr is offline
Senior Member
 
Join Date: Feb 2011
Rep: 579 Posts: 2,396
Location: Ft. Worth, Tx, USA
CC Guy,

I don't want to intrude on your business or finances, but would you be willing to estimate what the scanning and data reduction/ transfer cost?

Please feel free to decline, but an understanding of the actual cost for a specific boat might give others the information to consider doing it for another project.

The guys who scanned your boat might get more business also.

Thanks, Marc
Reply With Quote


  #15  
Old 09-30-2011, 11:48 AM
Gripenland's Avatar
Gripenland Gripenland is offline
Junior Member
 
Join Date: Apr 2005
Rep: 10 Posts: 23
Location: Gothenburg Sweden
I use this technology daily at my job in the automotive industry. It can be really effective in the right application. The number of manufacturers of this type of equipment has exploded in the last years and the cost has dropped rapidly.

We recently tested a hand held device no bigger then a video camera that didn't need markers on the object being scanned. The scan of an object was really fast and simple. However, the post processing was slow.
But Imagen walking around in an boat show with this device. You could easily copy a number of designs in an hour

This problem is already a fact in the automotive industry.
Reply With Quote
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
one blade scanned on A4 size scanner Çemberci All Things Boats & Boating 7 05-31-2007
07:02 AM 

Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.

All times are GMT -5. The time now is 05:59 AM.


Powered by: vBulletin Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Web Site Design and Content Copyright ©1999 - 2017 Boat Design Net