Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
I've been little busy lately so I haven't had much time to experiment much until this morning. I'm attaching the test I've done this morning with the chromaline blue. Also I ran an extra positive of black percentages from 90% down to 3% but the 3% isn't happening. I've also exposed a 230 with the time in the attachment and was able to hold down to the 7% at 56 lpi. I may have held down to 5% with a 305 but I will have to find time to test that. I know Alan is going test the Vastex with dual cure and will probably beat me to it but I'm going to expose the CCI WR-25 probably next week.
Quote from: ShirtShackandMore on August 21, 2013, 12:26:12 PMI've been little busy lately so I haven't had much time to experiment much until this morning. I'm attaching the test I've done this morning with the chromaline blue. Also I ran an extra positive of black percentages from 90% down to 3% but the 3% isn't happening. I've also exposed a 230 with the time in the attachment and was able to hold down to the 7% at 56 lpi. I may have held down to 5% with a 305 but I will have to find time to test that. I know Alan is going test the Vastex with dual cure and will probably beat me to it but I'm going to expose the CCI WR-25 probably next week.is this a dual cure emulsion? pierre
If I'm not mistaken, I believe Alan was only testing the HVP, right, and not a diazo/dual cure (I don't think he adds the diazo to his HVP)? I guess we'll find out. Those Chromablue #'s are virtually the same time that I'm getting already on our 40-1ks unit. Hopefully, the LED unit will blow the WR-25 out the water though with great times. I think we were at something ridiculous, like 7-9 minutes (can't recall exactly) and it still was breaking down on press with the WR-25 + hardener, so it must've been underexposed still.
well, yes and no, you do have to look at what the market has, and LED does have to compete with used MH units. if the price of used gets dirt cheap, it's devalues new units....and vice-versa
Hi,I am a newbie here. And I would like to buy a LED exposure.After reading many posts, I can't figure out what difference among Vatex E-2000, M&R starlight, Lawson LED-5000.Exposure time, vacuum time, screen exposure quality.If I can't figure out the difference, maybe the price is the reason to buy one.For exposure time, starlight and E-2000 are short, E-5000 is longer after I read some posts.For vacuum time, no big difference.For quality, I don't find related post.I am not in America, hope to get some advices, thank you very much!Earlps. There are other LED exposure like baby joe and lightspeed, too.