Freebie Halftone min - max test

[Dottonedan]

Hello All,

I’ve uploaded a halftone test file. You can burn with your choice of lpi and determine where you are with the minimum dot you can hold and the maximum shadow dot before filling in. Please post up your best results. We can then see how you might improve. Also (if you have any ability to blow up on the dots, in the smallest section that would be much appreciated. We would especially love to see the edge walls of exposure in the stencil if you happen to have a digital magnifying loop.


https://drive.google.com/.../1xRf8mZNrrqsshLEGi6P.../view...

[blue moon]

Hello All,

I’ve uploaded a halftone test file. You can burn the with your choice of lpi and determine where you are with the minimum dot you can hold and the maximum shadow dot before filling in. Please post up your best results. We can then see how you might improve. Also (if you have any ability to blow up on the dots, in the smallest section that would be much appreciated. We would especially love to see the edge walls of exposure in the stencil if you happen to have a digital magnifying loop.

https://drive.google.com/file/d/1Lfk0wHR50HfLjzEyGMA_OCz_JbMWYWMi/view?usp=sharing

it has been my experience that the 100% section needs to be a little longer so the solid area is obvious. Otherwise it is hard to tell where the 100% starts. To make it more effective and easier to use, add a 100% block to the right of the scale and place a line indicating where it starts.

pierre

[Dottonedan]

You're right. I overlooked that. Minor thing, but it does help.

[BRGtshirts]

Dan, thanks so much for creating. Our shop just switched to 100% Shurloc screens and I was already in R&D, so this is perfect. Quick question, we're using all thin thread/s-mesh so I'm thinking a 225/40 thin thread I'd burn on 55 lpi correct?  You mention 280 but thinking I could get away with it.

[Dottonedan]

Yes, you can, but due to the math, you force losing your smaller dots anyways. For me, the intent for these test are to know what mesh you CAN use when you need to for those very small dots.


There is a general rule of thumb to deiced your mesh by one of these numbers.


4, 4.5 or 5.


When I need to be sure I’m holding small 2-3% dots, I’m usually using 5.


225 divided by 5 give you a 45lpi.  BUT, that not to say you can’t use a 50 or 55lpi. Just know that the higher LPI you go on that mesh, the more you increase your chances for NOT holding this small dots.


A lot of people use 4. If you take 225 and divide by 4, you get 56.25 (rounded to 55lpi), but these people aren’t holding very small dots.  If the art does not contain dots below say 10% then you’re golden.  If any part of the art fades off to the shirt or blends out to 0%...don’t use 4.

[TheGhost]

Great info as always! Hey care to share the file again? I can't get it cuz it says it is in your trash. Thank you.

[Dottonedan]

https://drive.google.com/.../1xRf8mZNrrqsshLEGi6P.../view...


This should be the updated one. There was an error on box 92% being only 91%.