screen printing > DIY - From master engineered marvels to cobbled together jury-rigged or Jerry-built junk!
My DIY LED "Expansion" Board
IntegrityShirts:
--- Quote from: Binkspot on June 17, 2014, 07:23:17 PM ---Pretty slick, you have way too much free time on your hands.
--- End quote ---
You're right! I get obsessed with little projects like this. It was probably Pierre saying that he wouldn't recommend anyone try a DIY set up. I always like a challenge.
Nah not going to sell plans. I'll answer any questions if people want to build their own!
abchung:
That is so cool.
What is your LPI in the photo?
Unbelievable.
blue moon:
--- Quote from: IntegrityShirts on June 17, 2014, 10:11:56 PM ---
--- Quote from: Binkspot on June 17, 2014, 07:23:17 PM ---Pretty slick, you have way too much free time on your hands.
--- End quote ---
You're right! I get obsessed with little projects like this. It was probably Pierre saying that he wouldn't recommend anyone try a DIY set up. I always like a challenge.
Nah not going to sell plans. I'll answer any questions if people want to build their own!
--- End quote ---
I have been proven wrong many a time! This looks like a fun and worthwhile project!
The only thing I'd add is getting a UV meter and measuring the uniformity of the light. They can be had on ebay for $150 or so.
Pierre
IntegrityShirts:
--- Quote from: abchung on June 18, 2014, 07:03:15 AM ---That is so cool.
What is your LPI in the photo?
Unbelievable.
--- End quote ---
That's the 65LPI row of the kiwo exposure calculator.
Thanks Pierre. It could be better in a Version 2. I was hoping for Starlight level results, but in the end it's about the same as my 5k Olec. UV meter is probably not a bad idea. If it were accurate enough to see if my row spacing is correct. Still thinking a lower UV range LED might be the ticket to a hotter exposure. Or maybe even a blend of two different UV range strips in an alternating row setup.
I think I'm at about $250 investment. The goal here, worst case, was to have a usable backup in case the 5k Olec breaks. Best case it would replace the Olec. Right now I'm using it for all screens and will continue to play with timing and see how the screens hold up to waterbased with the SP1400 and no other treatment/hardeners. I don't typically do long run WB/discharge, largest is around 250 pieces coming up next week, but I'll give it a go and should at least be able to see some break down or softness at the end if it's a bad exposure.
TCT:
$250!? That is great! You sir are my new hero this week!!
I'm not sure 100% if all the LED units on the market have multiple UV range(Pierre would know for sure) but I know the "Light Speed" unit doors have 2 different ranges, and the creator claims that was key.
What do you want to bet your little DIY project has a effect on commercially available units?
Again, awesome job!
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