Homebrew PCBs

Volkan Sahin wrote:  
> Thanks. I'm working on rotating mirror, I've one scanner unit removed
> from laser printer.


>From my last loud thoughts one thing is not right, first i wrote about
10 rasted lines per second was the maximum (6faces 100rpm mirror) and
then 20�s line duration possibility (50KHz hsync).

If I get the thing right now, the maximum laser beam velocity on the
resist is 283cm/s, which makes just only 14 lines per second for a 20cm
wide board. Isn't possible to make the laser move linearly 2 times per
second? That will only be 7 time slower than the fastest possibility
with rotative mirror setup.

The vga signal gives 0.056mm max line width for 50khz hsync, which is
about the dot size for a complete line on monitor, not bad if hsync is
used for dot clk :|

The light on the resist need to be continue or can be interrupted
(multiple scan lines) until reach 60mJ/cm�?