Hey jontelling,

as far as I know, you cannot really talk about resolution in that way. Here are some points you might want to know:

  1. The PeachyPrinter allows you to put apertures on the laser to get your own laser diameter.
  2. The Problem is that even if the point is small, the laser will scatter in the resin and cure more than it should.
    This can be reduced by using opaque, colored resin (as you use normally). The Peachy guys use only slightly colored resin to make the defects more visible.
  3. More Power means broader walls as there is more light to be scattered.
  4. Even if you have a "big point" you still can get a good resolution. The only difference is the minimal wall thickness.
    You can observe this at filament printers like RepRap, Ultimaker & Co. They do have a "print-stroke-size" of roughly > 1 millimeter and still can get better resolution, but no wall thinner than a millimeter.


So to conclude,
you only want a thin laser if you need thin details.
Else you usually want a compromise that allows you to print faster.

I hope this answers your question.

Hava a nice day,
quertz