The holtzman CDM
Posted: Sat Sep 24, 2011 6:04 pm
I have been itching to have a go at holtzmans 2 drum monitor ,i don't think i am as good at constructing as fine looking montitor holtzmans ended up as you see so far but i will give it a shot at trying to repeat the 2 drum idea .
I think holtzmans used black tape for the lines ,i tried it with what i had and found my stuff let light pass black or not ...next idea was hot glueing cut up strips of video tape but found again the stuff lets light pass only good on 2 layers thick seemed a bit to much work ..i ended up trying and using very thin cardboard the stuff is light proof .
Perhaps with the light levels of a modulating led array or a few luxeons the first two ideas might be fine but just went for the cardboard for now since it even stopped a laser ..I used clear tape to hold it all tight after gluing the cardboard looks a little messy ,if it shows promise i will redo them nicer ...i am more interested to see what happens more than pretty at the moment ...
I think holtzmans used black tape for the lines ,i tried it with what i had and found my stuff let light pass black or not ...next idea was hot glueing cut up strips of video tape but found again the stuff lets light pass only good on 2 layers thick seemed a bit to much work ..i ended up trying and using very thin cardboard the stuff is light proof .
Perhaps with the light levels of a modulating led array or a few luxeons the first two ideas might be fine but just went for the cardboard for now since it even stopped a laser ..I used clear tape to hold it all tight after gluing the cardboard looks a little messy ,if it shows promise i will redo them nicer ...i am more interested to see what happens more than pretty at the moment ...