Originally Posted by
Drew Wiley
The diffusion system on that rig was poorly thought out. It works and should be fine for most purposes. But the light output can be nearly doubled using a true
mirror box below the head rather than that thick moulded piece of polycarbonate or whatever. They almost had a home run. Not quite. I cannibalized the controllers from several of these to build my own "hot rod" additive machines. But I wouldn't wish that nightmare on anyone else. I needed about eight times the
illumination level as the production unit in order to make large Cibachromes. But that era is gone, and RA4 papers are way way faster, along with all typical black and white papers designed for enlargement. If something does go wrong with the electronics, all the components are available through any serious electronics store or online supply. I prefer the stores because they attract soldering iron geeks that still know how to diagnose such components. Funny how these new phD's in electrical engineering up at the University don't even know how to use a soldering iron. But that's a different story. Digitized sinewave control
or additive channels does allow a whole new suite of options, but is inherently tied to constantly shifting expensive software issues, so not really practical for
a limited budget.
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