Hi,
I´m going do to some experiments on stereolitografi, trying to get an
extremly small cured point, with a very focused laser. I´ve got some Ciba
Tool SL5190 to do the experiment with. According to the label on the bottle
it´s supposed to work with a Nd-YVO4 laser. Is that the standard laser in
the SLA-machines?
I´ve heard that the wavelength of the laser is 354 nm, is that correct?
I´m going to work with a pulsed dye-laser, 50Hz with a variable wavelength
of 210-750 nm - do you think there will be any problems working with that
laser, if I tune it to the right wavelength?
The "critical exposure" for the resin is 14,9 mJ/cm2 and the "penetration
depth" 4,6 mils (is mils=millimeter?). What´s the meaning of these two
numbers?
I´ve heard that you get a better finish with a longer exposuretime at a
lower power than the opposite, is that true?
In which ranges can you then vary the time and power parameters?
I want to make my focused point on a flat plate , with a good adhesion
towards the polymer. Which material do you suggest?
I have another bunch of questions, but I think these will du for this time!
/Christian
----------------------------------
Christian Werdinius
Department of Polymertechnology
Chalmers University of Technology
Göteborg
Sweden
------------------------------------------
Christian Werdinius
Fredåsgatan 12A
431 67 Mölndal
Sweden
tel 031-16 04 87 el. 070-602 60 58
This archive was generated by hypermail 2.1.2 : Tue Jun 05 2001 - 22:44:44 EEST