[ATM] Hartmann mask

[atmpob at yahoo.com (Dale Eason)]

Good luck Vladimir,

I have been working off and on for three days at my
16" mask.  So far have 1/4 of the 400 holes cut out. I
am using an Exacto knife.  Fingers are getting sore.

Dale Eason


--- Vladimir Galogaza <vladimir.galogaza@zg.tel.hr>
wrote:
> Recently anounced program Hartman2D by james Burrows
> 
> 
> http://home.earthlink.net/~burrjaw/public/hart2d.zip
> 
> (2004-02-25, Win32, 1.21 M)
> 
>  and required   .dll file 
> 
> http://home.earthlink.net/~burrjaw/public/qt.zip 
> (2002-09-07, Win32, 1.75 M)
> 
> requires a mask with rectangular array of square
> holes.
> Help file of the program explains one way of making
> mask.
> I have used services of the Graphic Print Studio.
> Mask was constructed in a vector graphic and
> e-mailed
> to the Studio. They have computer controlled cuting
> machine
> ( sort of the xy plotter ), which cuts out the
> patern in
> selfadhesive PVC foil o.1mm thick.
> After separating it from the paper holding the foil
> it is mounted on the mirror.
> Because adhesive is strong and foil thin it is not
> easy to
>  mount the foil on the mirror  without deforming the
> hole patern.
> And peeling the foil from the mirror is practicaly
> impossible
> and leads to the foil damage. Therefore such a mask
> is only 
> for one time use.
> 
> To avoid this,  second mask was made on the computer
> 
> controlled laser cutter from a hopefully more
> suitable material.
> Material for the mask was rubber sheet 1mm thick.
> The rubber is soft and if mirror is laying on its
> back
> the mask conforms by its own weight to the mirror
> curve
> and double sided tape is not required.
> 
> It seems that laser cutting in combination with
> ruber 
> is not as precise as mechanical foil cutting.
> I am still looking for different materials that will
> best
> suit mask making by mentioned technologies.
> 
> Vladimir.
> 
> 
> 
> 
> 
> Outgoing mail is checked by AVG anti-virus system
>  (http://www.grisoft.com).
> 
> 
> 
> 
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