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Thread: Potential resolution
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04-17-2014, 09:17 AM #51
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
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04-17-2014, 01:41 PM #52
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- Oct 2013
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- 16
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
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04-17-2014, 02:27 PM #53
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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?
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04-17-2014, 03:17 PM #54
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- Apr 2014
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- Fort Collins, Colorado, USA
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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
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04-17-2014, 10:13 PM #55
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SubG or SubG+, I can't recall which. But it's just the standard stuff. Cures up to 420nm, it says on the bottle.
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04-18-2014, 07:31 AM #56
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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.
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04-18-2014, 11:47 AM #57
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I am a bit lost. Is 420nm more or less ultraviolet than 405nm?
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04-18-2014, 11:56 AM #58
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- Cambridgeshire UK
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405 is closer to what you would consider UV, 420 is more toward the visible blue/violet spectrum.
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04-18-2014, 11:58 AM #59
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- Nov 2013
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- Cambridgeshire UK
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605px-Linear_visible_spectrum.svg.png
Visible spectrum vs wavelength (nm) from WikiLast edited by Pete; 04-18-2014 at 12:00 PM. Reason: give the picture a useful description
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04-18-2014, 12:54 PM #60
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- Sep 2013
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- San Diego
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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.
My 3D Norn Emissary print
09-13-2024, 02:28 AM in 3D Printing Gallery