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Going to make sublimation press

 
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motoman



Joined: 15 Jan 2015
Posts: 226
Location: Ukraine

PostPosted: Thu Feb 25, 2016 1:07 pm    Post subject: Going to make sublimation press Reply with quote

Hello,
I am on the way to build sublimation press.
First, a bit of reflection on the matter.
Having seen pneumatic and vacuum and calender presses in action (I mean that entrepreneurship that provide such services in my country) . I more prefer pneumatic despite the fact that companies that I appealed for help could press only at 180 -200 degrees cesium.
Company that makes sublimation at vacuum press use lamp heating and it is really hard to control the temperature and it causes uneven pressure.
Calender press burns the material and move material too fast through the drums.
Also I have been talking to Isosport tech support, they told that their press has hot and cold press. And they hot press at 3 bars.

So, the idea is to create something that can create such pressure.
Let me shear my ideas.
In my plans is to combine pneumatic and vacuum press in one device.
Vacuum will work as temporary holding to prevent after press deformations.
And pneumatic will create enough pressure for sublimation.
May be I will try somehow to apply cold plate, but not sure yet.

As for frame construction, I think something similar to ski press might be created.

I did not go much into the details and just gather information. I read a few topics but still need some critics from the side.

Thanks
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amidnightproject



Joined: 04 Nov 2009
Posts: 378
Location: Portland Area, Maine

PostPosted: Tue May 24, 2016 3:29 am    Post subject: Reply with quote

Here's mine:

short little video:
https://scontent-lga3-1.cdninstagram.com/t50.2886-16/12560178_1659213110984461_2147117762_n.mp4




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Allianceskis



Joined: 11 Dec 2012
Posts: 9

PostPosted: Wed Jun 29, 2016 1:12 am    Post subject: Reply with quote

Hi amidnightproject

how much pressure are you putting through that thing and what time and heat are you using because I'm about ready pull my hair out trying to get the combination right.

Also what type of blanket are you using under the top sheet, it looks quite thick.

I've got a 5mm silicone rubber mat but it seem to thermally expand a lot when pressed and i feel its a part of my problem why I'm getting wrinkle and crease marks in my top sheet.

thanks a lot
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motoman



Joined: 15 Jan 2015
Posts: 226
Location: Ukraine

PostPosted: Sat Nov 12, 2016 7:09 am    Post subject: Reply with quote

Here is ours sublimation press. Easy and fast to work. Not that I planned to make, but still works good.
Nice uniform pressure. Instead of foam we use plywood. Works great.
Instead of heat blanket we use hot plate made of nichrome wire.
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chrismp



Joined: 13 Feb 2009
Posts: 1237
Location: Vienna, Austria

PostPosted: Sun Nov 13, 2016 10:37 am    Post subject: Reply with quote

Pretty hefty looking press. Can you give some details on the heat platen? Is it insulated nichrome wire inlaid into a channel in a base plate covered with a metal plate?
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Akiwi



Joined: 15 Jan 2015
Posts: 353
Location: Olching (Near Munich) Germany

PostPosted: Mon Nov 14, 2016 12:48 am    Post subject: Reply with quote

Looks pretty Impressive!!
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motoman



Joined: 15 Jan 2015
Posts: 226
Location: Ukraine

PostPosted: Mon Nov 14, 2016 1:58 am    Post subject: Reply with quote

This device is twice lighter then our press for boards)) But yes, it is still looks heavy) Since we need to sublimate our bases we need big pressure, that is the reason why the frame is big.
You are almost right. It is sandwich of nichrome in the mica covered with two stainless steel plates. Energy consumption is 4 kW.
Also before this plate we did quite good heat plate made of tube heaters attached to metal plate. There was some heat gap between heaters around 5 degrees centigrade, unless this device required to much energy, so we quit this idea.
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motoman



Joined: 15 Jan 2015
Posts: 226
Location: Ukraine

PostPosted: Mon Nov 14, 2016 1:59 am    Post subject: Reply with quote

I will send the picture soon.
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motoman



Joined: 15 Jan 2015
Posts: 226
Location: Ukraine

PostPosted: Thu Dec 01, 2016 11:37 pm    Post subject: Reply with quote

Here is the picture of our heater construction
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Minga



Joined: 16 Dec 2014
Posts: 39

PostPosted: Mon Dec 05, 2016 2:09 pm    Post subject: Reply with quote

To all you sublimation guys: do you all use RIP software for your printers? That shit is expensive Confused
And did you get ICC profiles made or did you just figure out the color management by trial and error?

Got a nice printer for cheap, now it s time to build a press again Very Happy

Hannes
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amidnightproject



Joined: 04 Nov 2009
Posts: 378
Location: Portland Area, Maine

PostPosted: Mon Dec 05, 2016 5:54 pm    Post subject: Reply with quote

The biggest reason for a RIP is consistency for reproduction or large runs.

If you are a weekend builder and don't do multiples of the same thing then the best thing is to print directly out of your graphic software and 'learn' your printer.

What I mean is, if your printer tends to over saturate blues, make a blue adjustment layer to take a bit of the blue out of the print ahead of time. Same with red, or green etc.

You can also do this in the advanced printer settings of most printers and create a custom ICC profile. It's not overly difficult. Just time consuming and often confusing.

TLDR; I print on a wide format every day. We use commerical RIP software that cost a few grand. And while the features are extremely useful for us as a production house, it's not a necessary expenditure for casual or even light production use.
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mammuth



Joined: 28 Oct 2014
Posts: 248
Location: somewhere in the alps

PostPosted: Tue Dec 06, 2016 7:52 am    Post subject: Reply with quote

If you like to dive into it ghostscript can be very useful
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amidnightproject



Joined: 04 Nov 2009
Posts: 378
Location: Portland Area, Maine

PostPosted: Sat Dec 10, 2016 6:43 am    Post subject: Reply with quote

Allianceskis wrote:
Hi amidnightproject

how much pressure are you putting through that thing and what time and heat are you using because I'm about ready pull my hair out trying to get the combination right.

Also what type of blanket are you using under the top sheet, it looks quite thick.

I've got a 5mm silicone rubber mat but it seem to thermally expand a lot when pressed and i feel its a part of my problem why I'm getting wrinkle and crease marks in my top sheet.

thanks a lot


I think im at 60psi at each cylinder. They are 2" so whatever that math works out to be. It's a fair amount of pressure.

As for temp, I'm right around 300 to 315F and anywhere from 5 to 8 minutes.

That's just cotton batting layered up. It helps reduce the inconsistencies in the system.
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Minga



Joined: 16 Dec 2014
Posts: 39

PostPosted: Thu Apr 13, 2017 2:35 pm    Post subject: Reply with quote

@amidnightproject
Thanks for your answer. I just talked to the guy selling the elvajet inks in Germany. He told me that to get superior color results I probably need to get some colormanagement software. Also, to use only CMYK instead of all 8 colors of my epson printer I need some aditional software. Do you agree and do you know of decent software capable of that?

Cheers,
Hannes
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chrislandy



Joined: 17 Feb 2015
Posts: 69
Location: England/France

PostPosted: Thu Apr 20, 2017 4:10 am    Post subject: Reply with quote

You need a proper RIP (Raster Image Processing) software

You can occasionally find them used (licence) but a lot of them use a dongle - or at least the older ones anyway.

I use Colorgate ProductionServer on my solvent printer, but I got that with my printer.

Others include Onyx & Caldera. I think there are Epson specific and also some free (crap) ones, but you get what you pay for
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