screen printing > DIY - From master engineered marvels to cobbled together jury-rigged or Jerry-built junk!
My DIY LED "Expansion" Board
IntegrityShirts:
Here she is, in all her glory. Ugly and not fully tidied up yet because I'm deciding whether to order some lower nm LED's and try them out.
* 600W computer power supply (overkill)
* 12V 30A automotive relays (2)
* Digital timer from Amazon
* Heavy duty suction cups
* (5) 5 meter rolls of 395-405nm 12V 5050 LED strip (non-waterproof if you can find it)
* 30"x18" sheet of aluminum sign material I had laying around
* L-bracket rods from Tractor Supply
Things I have learned so far:
* Chinese DC solid state relays suck.
* I didn't need as big a power supply as I bought.
* Soldering all those little tiny connections is a PITA
* Don't buy waterproof LED strips
I'm THINKING that I could get lower exposure times by going with a lower NM LED, such as a 365 or a 385nm range. Those are harder to source on Aliexpress and cost a bit more (~$200 for enough to do 1 23x31 exposure unit).
Results so far were carried out with Aquasol HVP AND SP1400.
150S with a 1/2 coat round edge Aquasol HVP is right at 30 seconds for a good exposure
135S with a 2/3 coat round edge Aquasol HVP is around 50 seconds
200S with a 1/1 coat round edge SP1400 is around 90 seconds
110 yellow mesh (murakami) with a 2/2 round edge SP1400 should be around 110 seconds
PICS!
There are a few rows where I peeled the waterproof goop coating off the LEDs to see if it made a hot spot (it didn't)
This is a 200S 1/1 round edge sp1400 @ 90 seconds
This is a 200S 1/1 round edge sp1400 @ 90 seconds
TCT:
That is AWESOME!!!!!
So all in what did it run you?
T Shirt Farmer:
Bravo!!!! that is a super cool DIY
Binkspot:
Pretty slick, you have way too much free time on your hands.
TCT:
I bet you could sell the "plans" for that for $29.95... I'd buy one!
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