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Discussion, tips, pictures, reviews and peer to peer support for those do it yourselfers who are working on building their own DTG machine.



[DIY DTG] Build DTG printer A3+ with Epson R1900

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Old June 17th, 2014 Jun 17, 2014 1:18:03 PM -   #31 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

I will say thank you for all the others who may find this info useful.

Now here here is something back for your effort. Most of the noise generate by your build is due to vibration. Perhaps you could look at reducing the height of the table. And use thicker aluminum in some areas.
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Old June 17th, 2014 Jun 17, 2014 1:38:34 PM -   #32 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

The diagram provided is a general diagram and would not be exact for printer connection. The printer encoder provide pulses at 3.3v and can be tapped off the relay board or directly off the encoder board. Most use the relay board. These boards can be damaged very easily you must take precaution while working with them. If you're not savvy with electronics find someone to help you out.

The arduino board input and output posts are on opposite sides of the board do not be confused by the numbering on the diagram.
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Last edited by priest; June 17th, 2014 at 01:42 PM.. Reason: Add more info
 
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Old June 17th, 2014 Jun 17, 2014 11:36:13 PM -   #33 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Quote:
Originally Posted by priest
I will say thank you for all the others who may find this info useful.

Now here here is something back for your effort. Most of the noise generate by your build is due to vibration. Perhaps you could look at reducing the height of the table. And use thicker aluminum in some areas.
spindle is 100cm long and 10mm thickness there are vibrations. The stepper motor is also loud so everything is loud. To reduce vibration and noise if you use the belt drive. At present, the noise does not bother me. I have a problem with printing ink white on dark clothing. I use 100% cotton and 4x movement of the head is very poor results. Look at the picture.
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File Type: jpg white print.jpg (299.9 KB, 139 views)
 
 
Old June 18th, 2014 Jun 18, 2014 12:12:37 AM -   #34 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Have you pretreated the shirt? It seems like you are missing pretreatment.
 
Old June 18th, 2014 Jun 18, 2014 12:20:48 AM -   #35 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

I want to thank you for sharing your code and providing such helpful information and I also want to thank Priest for convincing you to post the code and for his good observations.

Regards to all !
 
Old June 18th, 2014 Jun 18, 2014 3:45:19 AM -   #36 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Quote:
Originally Posted by estrada
Have you pretreated the shirt? It seems like you are missing pretreatment.
Seller says that for their white ink does not need preparation for printing. Even with the preparation of nothing better.
Maybe their white ink is not high quality. I bought it
Textile Ink - Shop Cheap Textile Ink from China Textile Ink Suppliers at Aomya Printer Consumables (Zhuhai) Co., Ltd. on Aliexpress.com

Ink bk,c,m,y is good quality.
 
Old June 18th, 2014 Jun 18, 2014 4:17:20 AM -   #37 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Quote:
Originally Posted by Mikistromar
spindle is 100cm long and 10mm thickness there are vibrations. The stepper motor is also loud so everything is loud. To reduce vibration and noise if you use the belt drive. At present, the noise does not bother me. I have a problem with printing ink white on dark clothing. I use 100% cotton and 4x movement of the head is very poor results. Look at the picture.
You could have poor quality ink. Give the white cartridges a good shaking before printing and see what gives. If the ink sits for a long time the pigment separates.
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Old June 18th, 2014 Jun 18, 2014 9:43:47 AM -   #38 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Where in the EU selling white ink for textiles and liquid pretreatment.
Is there in Europe a ink factory for ink textile.
China seller does not know that any white ink requires pretreatment. Can be tested in PVC T-shirts.
Cotton t-shirts very absorb white ink.
 
Old June 18th, 2014 Jun 18, 2014 11:56:12 AM -   #39 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

White ink needs pretreatment on the shirt. Otherwise it is absorbed into the fabric. This is what is happening to your prints.

There is a resolute distribuitor in Slovenia:

Barve za DTG tiskalnike
 
Old June 18th, 2014 Jun 18, 2014 10:18:03 PM -   #40 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Hi Miki, thanks for the job done, be careful with the head, you must fill the cleaning station with liquid for cleaning every night, that part is very delicate.
White ink you can be dried and harms you the head, DTG all dark t-shirts must be pretreatment, the problem is not the head at 4 x
see this link for the care of the head
https://www.youtube.com/watch?v=Cl0Sq83RFno

applying liquid pre-treatment

https://www.youtube.com/watch?v=YHChve-sfT0

I would remind you, the ink is not bad, you take care of the head in the evenings or at the end of print
 
Old June 19th, 2014 Jun 19, 2014 12:03:25 AM -   #41 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

I have a more convenient way of cleaning heads. After printing, remove the white cartridge and insert the cartridge with cleaning fluid 2 to 3 times I clean the head and the head is clean. Perfectly simple.
 
Old June 19th, 2014 Jun 19, 2014 11:23:35 AM -   #42 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Quote:
Originally Posted by priest
The diagram provided is a general diagram and would not be exact for printer connection. The printer encoder provide pulses at 3.3v and can be tapped off the relay board or directly off the encoder board. Most use the relay board. These boards can be damaged very easily you must take precaution while working with them. If you're not savvy with electronics find someone to help you out.

The arduino board input and output posts are on opposite sides of the board do not be confused by the numbering on the diagram.
What you think use the relay board. You mine epson relay board.
On the Epson encoder I measured 5V pulse. These pulse I have connected to the Arduino. I did not modify epson relay boards. Everything is original. Interrupted only enabled funcion for driver stepper motor.
 
Old June 19th, 2014 Jun 19, 2014 11:38:19 AM -   #43 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Quote:
Originally Posted by estrada
White ink needs pretreatment on the shirt. Otherwise it is absorbed into the fabric. This is what is happening to your prints.

There is a resolute distribuitor in Slovenia:

Barve za DTG tiskalnike
Hmm is really white ink cost 200€. Here in Slovenia us having such a price. In China, I bought it for 90€.
What about in Italy or Austria anyone buy there dtg ink.
 
Old June 20th, 2014 Jun 20, 2014 5:33:33 PM -   #44 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Maybe you just need the pretreatment. Why don't you buy some pretreament and test it with the chinesse ink?
 
Old June 20th, 2014 Jun 20, 2014 11:27:11 PM -   #45 (permalink)
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Default Re: Build DTG printer A3+ with Epson R1900

Problem solved, when replacing pre-treatmens fluid. Buy in Slovenia. Now white ink a nice applied.
See video.

https://www.youtube.com/watch?v=_jtD7NMGhNk
 






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