Statistics: Posted by ionel.ciobanuc — Sat Apr 29, 2017 4:27 am
]]>
Replace LED's is very time intensive and needs good skills in soldering.
What do you think about this idea?? Will this work?
Statistics: Posted by stefan30 — Tue Mar 28, 2017 12:06 pm
]]>
I can cure resin with a solitary 410nm led, but when I put the 7.9in screen in the way of 10 x 700ma leds nothing cures after 30+ seconds. I assume this isn't a surprise to most here. I had them from an old project so thought I'd try before ordering blue Leds.
When he mentions "very slow" I assume we are talking minutes?
The general summary seems to be "don't bother with anything less than 450nm for ipad screens, and stick with daylight resins." Are there some instances where people have actually found success under 450nm with an ipad screen?
I came back to this forum to read more about what specific leds people are using and what cure times they are getting. 1w and 3w blue leds seem highly variable and generally of low quality. Cobs of any decent size probably won't be uniform. Some of the cheaper listings don't even mention a wavelength. I was curious about the COB led strips used in automotive (not the 5050 or 5730) which could be laid next to each other to form a grid. The best one seemed to be the 200x10mm COB in this link, but I have no idea how long to expect as the numbers listed are usually some idealized numbers that don't link to reality in any way. I do like that some of them are 12v, as it simplifies the power supply (atx psu mod).
My impression is that I'd be okay going with a bunch of newer cree, such as the blue xt-e or xt-e2 in an array. Those can be had for $2.50 or so in bulk, but I have no idea how many would be appropriate.
Statistics: Posted by orangezero — Wed Dec 28, 2016 3:23 pm
]]>
you wrote "the lcd minus the uv filter".
Where I can find the uv filter? I checked my Ipad3/4 LCD and the top layer is a polarization filter.
Thanks,
M.
Statistics: Posted by sechsteelement — Wed Dec 28, 2016 5:12 am
]]>
]]>
]]>
]]>
]]>
]]>
]]>
]]>
]]>
]]>
]]>
]]>