screen printing > Screen Making

Exile Spyder-screens not registering on press correctly

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1964GN:

--- Quote from: Rockers on April 24, 2022, 08:56:11 AM ---
--- Quote from: 1964GN on April 24, 2022, 06:12:31 AM ---I was told that for every millimeter of stretch that the drum pushes on the mesh, the tension changes by 4 newtons. First I would shim the Spyder to get the drum to barely touch the mesh. Second, if the blocks on each don't match 100% you are unlikely to ever get perfect reg with out some modifications to the entire system.

This is just one of reasons why we choose MHM. All of those variables go away with their pin system.

--- End quote ---
The pin system is a nice option to have, and ROQ got as well a pin system which is slightly different to the MHM pins. Thing is you can`t get an attachment for the Spyder for the ROQ pin system.


--- End quote ---

Yes, we use to have ROQ's with their pin system and it's terribly flawed, in so many ways.

bimmridder gives you some very good advise.

Orion:
Rockers, the DTS systems I have worked with (Kiwo), we printed the image upside down at the bottom of the screen for it to match the tri-loc system. Are your screens imaged that way?

Maxie:
Dave hit the nail on the head.
I've been trying for a long time to get perfect registration with MHM and Douthitt.
I get close but not 100%.
What I can say is my registration is very close, and a slight adjustment by a experienced printer gets registration 100% quickly.     
Much faster than when we had film.
My feeling is that the time I have to spend trying to keep the whole system perfect is wasted, I'd rather make the small adjustments.

inkman996:
We have an I Image and the Tri Loc to match. I found no matter how tight I make everything there will always be a little mis reg here and there. It comes down to clamping pressure, slight bows in the frame, mesh tension differences, on and on. To many things to chase down. A tiny 2 second adjustment of the micro regs is all it takes. Of course it still pays to get as close to perfect as possible but diminishing returns comes to mind.

zanegun08:
Jeffery has a way to improve this, aka jepaul.

I'd post more of it if he gave permission but maybe reach out if he's still out there as he has videos as well.

Basically the concept is the tri-loc system is flawed because the contact points are too large, and don't match up exactly with the tri-loc jig on press to the CTS,

If you can reduce those contact points to be smaller and more mirrored from CTS to on Press then you can get closer to perfect registration on press.

However we have not implemented that internally although I'm sure we would see huge improvements for not much modification needed.

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