UCJV300 overprint on 1 layer

[willkho]

Hi all,
if not mistaken, ucjv can do multiple overprints on one layer only? I can't find a way to do it.

For instance:
I want to build up texture using clear then cmyk on top.
To reach the heigh I desired, I need 5 overprint of clear but just 1 overprint CMYK (5 over print cmyk will be too dark).

Is it possible?

Thanks

 

[Smoke_Jaguar]

Best bet for building up clear is a CMYK/Clear gloss on pass 1, then pull-back and do a second gloss. Will get some nice thick prints, at least in my experience. Using Rasterlink 7 here, so not sure if using aftermarket RIPs.

 

[Goatshaver]

If you want to do raised under the 4 color. Best way would be to make a White ink layer and a Build layer (100% of CMYK) for what you want raised up. Regular ink and white are thicker than the clear and will build up faster.
I'm not totally familiar with the 300 but you should be able to do 5 layers (BUILD>WHITE>BUILD>WHITE>CMYK)

 

[willkho]

Best bet for building up clear is a CMYK/Clear gloss on pass 1, then pull-back and do a second gloss. Will get some nice thick prints, at least in my experience. Using Rasterlink 7 here, so not sure if using aftermarket RIPs.

yupe, I always use pullback, but sometimes it doesn't work with the alignment, occasionally head strike.

 

[willkho]

If you want to do raised under the 4 color. Best way would be to make a White ink layer and a Build layer (100% of CMYK) for what you want raised up. Regular ink and white are thicker than the clear and will build up faster.
I'm not totally familiar with the 300 but you should be able to do 5 layers (BUILD>WHITE>BUILD>WHITE>CMYK)

interesting, I've never tried 5 layers for this, will surely try it.
The build is the clear ink right?

 

[Goatshaver]

interesting, I've never tried 5 layers for this, will surely try it.
The build is the clear ink right?

The build layer is 100% of each color. (Cyan 100%, Mag 100%, Yellow 100%, Black 100%.) No clear is involved.

 

[Krissy Louderback]

You can do up to 6 layers in Rasterlink. You need to use the composite function.

 

[willkho]

oh really, I thought 5 is the max? WHITE>BUILD>WHITE>BUILD>WHITE>CMYK ?

 

[Goatshaver]

oh really, I thought 5 is the max? WHITE>BUILD>WHITE>BUILD>WHITE>CMYK ?

It cannot be more than 5 layers with a single pass, anything more than you need to do a 2nd pass. Total would be 5 layers including the CMYK. (BUILD>WHITE>BUILD>WHITE>CMYK)

You should look through their multi-layer guide, it'll give you some detail about printing with multiple layers.
https://mimaki.com/product/inkjet/print-cut/ucjv330-series/download-manual.html

 

[dinomaskot]

Do you change head height when building up layers?

 

[Smoke_Jaguar]

UCJV300/150 has a static height head. The CJV300/150 has adjustment though.

Even with 5 layers, you tend to have a lot of clearance.

 

[crashaffinity]

Hi all,
if not mistaken, ucjv can do multiple overprints on one layer only? I can't find a way to do it.

For instance:
I want to build up texture using clear then cmyk on top.
To reach the heigh I desired, I need 5 overprint of clear but just 1 overprint CMYK (5 over print cmyk will be too dark).

Is it possible?

Thanks

You mean do several overprints only one of the layers? not unless you do a pullback no.

there's kind of a way to cheat it though.

clear underneath two channel at 100%, cmyk on top at only 20% of value (changed in the actual print file), then run with 5x overprint. this way you can avoid a pull back and possible misregistration.

If it doesn't have to be clear build up there's other ways to do it like others have mentioned.

 

[Goatshaver]

Building on the UCJV can be done several way, also depends on how you want to do the embossing. (Gloss, matte, etc...)
Any layer you set to have multiple overprints will affect all layers, except the cut layer, unless you do pullback printing,

If I'm doing a matte only emboss, I don't have to use any clear ink. The build would go as BUILD>WHITE>BUILD>WHITE>CMYK. The build layer is comprised of 100% of CMYK inks as those create a a really good layer for embossing and the white layers above them cover-up those so your final CMYK has a good white to print on.
Now gloss can be done a couple of ways, I have done builds of CMYK>GLOSS>GLOSS>GLOSS>GLOSS (gloss usually set at about 40%) which makes a decent emboss but I find because of all the ink laydown the curing needs to be bumped up more.
Or the pullback method of CMYK>PULLBACK>GLOSS (You can set the overprint to up to 9x on just the gloss without affecting the CMYK).

This print was actually CMYK>WHITE>MATTE CLEAR>PULLBACK>GLOSS x 4 overprint @ 70% and I can leave my head height at low without any issues. Any more than that I'd have to raise this up. Also would depend on the thickness of your media. I'm using a 4mil holographic.

 

[Smoke_Jaguar]

If this is on a 330, that makes sense. But doing it on a 300 is total insanity. The 330 supports 2.5D printing, and that helps a ton.

 

[Goatshaver]

If this is on a 330, that makes sense. But doing it on a 300 is total insanity. The 330 supports 2.5D printing, and that helps a ton.

Except you can't have a cut layer with the 2.5D printing that I'm aware of unless something changed in some updates.

I think for what he's trying to do for a texture he doesn't need gloss if he's printing CMYK over it.
He doesn't even need to use clear ink but if he's going to just print CMYK over the clear just do a matte clear, but IMO the best way would be to build using CMYK and White ink then the CMYK print over the top. That should be able to be done in one shot, could make a slightly thicker by doing more passes.

 

[Philw]

UCJV300/150 has a static height head. The CJV300/150 has adjustment though.

Even with 5 layers, you tend to have a lot of clearance.

My UCJV is one of the first out and there's a mechanical head height adjustment, it's a black knob around the back of the print carriage unit and unless you have long, thin strong fingers good luck, it's very tight. I have to send the head across as if I'm going to clean it and then with a torch and long nosed pliers I can rotate the knob through Low - Medium - High. I calibrated for and run mine in High all the time now as it's a pig for wiping on the media during printing.

 

[Smoke_Jaguar]

Mine has some stout hex bolts in the slots that are blue threadlocked into place for where the adjustment screws were to be if it were on a solvent printer. Gen5 heads have great throw, so if I really felt the need, wouldn't be too crazy to raise it. Definitely not a user-serviceable method by most accounts.

 

[Philw]

My UCJV is one of the first out and there's a mechanical head height adjustment, it's a black knob around the back of the print carriage unit and unless you have long, thin strong fingers good luck, it's very tight. I have to send the head across as if I'm going to clean it and then with a torch and long nosed pliers I can rotate the knob through Low - Medium - High. I calibrated for and run mine in High all the time now as it's a pig for wiping on the media during printing.