The business about getting accurate drawings has very much to do with
digitization. Plans are nor longer copied via the old and reliable Diazo
method. Hence, Hubbard no longer supplies Mylar plans with its kits, as,
for instance, the bridge-nut dimensions are incorrect when digitally
reproduced. As are all the other dimensions.

Even if one had a functioning Diazo copier, finding Diazo paper would be an
issue. So inaccurate digital copies are deemed the best thing in the world,
a testament to our great progress as a technological society.

(hopping off soap box)
dpj

On Sun, Dec 4, 2016 at 12:21 PM, Chris Vandekerkhove <
[log in to unmask]> wrote:

> Dear members,
>
>
>
> Apparently the Smithsonian is currently not able to provide copies of
> technical drawings due to technical problems. Here is an excerpt of some
> recent communication:
>
>
>
> We have sold out of our remaining copies of the plans of which we used to
> sell so many. As it became almost impossible to find traditional shops that
> could handle reproduction of the large plans, we digitized them, thinking
> it
> would be a simple matter to have them printed on demand as necessary. But
> we
> have not been successful in getting them digitally printed at an accurate
> 100% scale. They often come out at 103%, or 96%, or whatever, no matter the
> fact that the printer/plotter has been calibrated for 100%. I'm still
> working to find a solution, but have not yet had any luck
>
>
>
> By the way, same problem in Europe: modern copying machines cannot handle a
> size > 96 cm. Due to legal reasons, copies are not allowed to be 100%
> accurate (falsifying money). So, in any case, never trust plans blindly. In
> the good old days, plans could be bought on mylar and I was told that these
> were quite accurate.
>
>
>
> Have a nice week,
>
>
>
> Chris.
>
>
>
>
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::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
Note:  opinions  expressed on HPSCHD-L are those of the  individual con-
tributors and not necessarily  those of the list owners  nor of the Uni-
versity of Iowa.  For a brief  summary of list  commands, send mail to
[log in to unmask]  saying  HELP .
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::