Potential resolution

[nka]

No need to have more output on the card. You just need to use a different frequency (i.e.: 10-15 Khz = Kit 1, 20-25 Khz = Kit 2).

The Peachy Pro have a focused laser, but I dont know what they are using. Rylan seems pretty good at finding cheap stuff

[Spelljammer]

I thought it uses a 405 nm laser. Glass doesn't block much until you get to the shorter wavelengths. 405 would pass completely through. So, a glass lens would work fine, even down to about 325 nm or so.
input_optics_graph.jpg

[Feign]

I see glass does better at letting UVb pass through than I would have expected... A 405nm laser? I thought photopolymers needed UVb to cure them, which is a bit below that, and that's just barely at the edge of UVa.

Is the resin y'all are using a special formula for the Peachy, or is it standard Maker Juice?

[chipphydes]

Feign,

I just checked and the laser is 405nm. This is known as UVA/VIS as it is at the top of the ultraviolet range and the bottom of the visible range.

Anyway, there are plenty of 405nm laser diodes : http://www.digikey.com/product-highl...er-diodes/3447

[Anuvin]

SubG or SubG+, I can't recall which. But it's just the standard stuff. Cures up to 420nm, it says on the bottle.

[Feign]

Well, I'm happy to be corrected like that! My research into photopolymers was clearly incomplete. So this stuff will cure with a regular blacklight (or blacklight LED), then. I'll have to get some of this to see what other things I can do with it while waiting.

[Anuvin]

I am a bit lost. Is 420nm more or less ultraviolet than 405nm?

[Pete]

405 is closer to what you would consider UV, 420 is more toward the visible blue/violet spectrum.

[Pete]

605px-Linear_visible_spectrum.svg.png
Visible spectrum vs wavelength (nm) from Wiki

[Anuvin]

Okay, I should have just looked that up, but thanks for clearing it up. So the resin will cure up to about half of the visible UV spectrum.