The item needs to be dimensionally described in a 3D data file like that
used in Computer Aided Design (CAD). You could do it with manual
measurements, scanning using a 3D laser scanner or a digital camera that
takes in numerous photos from lots of different angles and software that
interprets the photos to produce the drawing file.
There are lots of companies that will produce 3D objects on their 3D
printers given the data file. But I have no idea what this costs for
the requisite material and precision.
See this as the cheapest way although I don't know if it's precision is
adequate.
<http://www.instructables.com/id/Making-a-3D-print-of-a-real-object-using-123D-Catc/>
ps: Caution on the instructables.com site. I've visited this site
serverl times before. The site itself gave no warnings from my
Malwarebytes Anti-exploit software but a pop-up that appeared briefly
was flagged as malware. Shutting that page down and reopening it saw no
further popups or warnings.
Chuck Norcutt
On 4/9/2016 8:58 AM, John Hudson wrote:
I do not know of anyone with a 3-D printer. With no size / measurement
specs on hand how might a 3-D printer produce a replica to within the
very finest of tolerances and be indistinguishable from the original?
Very curious!
jh
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