Search found 96 matches

by Wonko
Sun Nov 26, 2017 10:12 pm
Forum: 3DP printing
Topic: spectra nova 256 print head
Replies: 4
Views: 6981

Re: spectra nova 256 print head

beytullah wrote:The Xaar 128 print head is quickly failing
Yes, the Xaar 128 requires compatible ink. Good luck with the Nova head. I am looking forward to hearing about your progress. Fingers crossed!
by Wonko
Sun Nov 26, 2017 1:08 pm
Forum: 3DP printing
Topic: spectra nova 256 print head
Replies: 4
Views: 6981

Re: spectra nova 256 print head

With a 1600 Euro head for a single color? And I thought that the 150 Euro Xaar 128 printhead is beyond consumer reach... .
by Wonko
Fri Sep 08, 2017 7:54 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 320
Views: 190277

Re: Hacking the Xaar 128 printhead

Thanks, Simonsigns. It took me month originally to find the documentation on the Xaar 128. Eventually I stumbled over the original docs during a visit to China. By now, with some Google skills, the Xaar XJ128 Guide to Operation is quite easy to find. I know the board that you are talking about. Yes,...
by Wonko
Wed Aug 30, 2017 8:19 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 320
Views: 190277

Re: Hacking the Xaar 128 printhead

The purging procedure helps if the ink is clogged. If you have air trapped anywhere, the head can not build up enough pressure to eject the air. The manual explains how to fill the head the first time, and how to get the air out IIRC. The Xaar 128 is pretty tough compared to the Epson heads that, fr...
by Wonko
Wed Aug 30, 2017 10:25 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 608
Views: 408272

Re: Hacking the HP45

Hey Restani, if you have a working schematic to drive the XAAR 128 can you please share it? I would be really happy! Thanks and have a nice day everyone. There is a Xaar thread in this forum: http://ytec3d.com/forum/viewtopic.php?f=8&t=47&p=1709#p1709 Xaar printheads have all the electronics built-...
by Wonko
Wed Aug 30, 2017 10:21 am
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 320
Views: 190277

Re: Hacking the Xaar 128 printhead

Make sure that you use a compatible ink and that there is no air bubble in the head. This sounds very much like you have a bubble. You can suck it out of the head using a head cleaner with a vacuum pump. When filling the cartridge, make sure that the hose faces down, then put the ink in with slight ...
by Wonko
Sat Apr 08, 2017 8:43 pm
Forum: 3DP printing
Topic: Using a zcorp printer and modifing it for a different print head
Replies: 5
Views: 8146

Re: Using a zcorp printer and modifing it for a different print head

The software has to be rewritten from scratch. None of the ZCorp stuff will work anymore. I am using a Teensy 3.5. They are fast enough with plenty of resources and they are tolerant to 5V TTL level, which is what the Xaar head and all the motor drivers want. It's amazing to see the entire huge PC m...
by Wonko
Sat Apr 01, 2017 10:19 am
Forum: 3DP printing
Topic: Using a zcorp printer and modifing it for a different print head
Replies: 5
Views: 8146

Re: Using a zcorp printer and modifing it for a different print head

Xaar says in their documentation that their head will last 4 Billion drops (4.0E09). One drop is 80pl (pico liters) or 8.0E-11. 4E9 * 8E-11 = 0.32 liters. 0.32 liters is not very much at all, so either this is a very low estimate, or the 4 billion drops are counted per nozzle. So let's multiply 0.32...
by Wonko
Fri Mar 31, 2017 9:08 pm
Forum: 3DP printing
Topic: Using a zcorp printer and modifing it for a different print head
Replies: 5
Views: 8146

Re: Using a zcorp printer and modifing it for a different print head

My ZCorp machine still has the Canon heads. Impossible to come by, and a super short lifetime. The whole Xaar idea is basically a way to replace the head of this machine eventually. But I got sidetracked, and started to build a much smaller machine, which would be terrific, if I had a few month or s...
by Wonko
Thu Mar 30, 2017 8:40 am
Forum: 3DP printing
Topic: Diy inkjet PC software
Replies: 6
Views: 7824

Re: Diy inkjet PC software

For my controller, I wrote a simple language that includes primitive compression. The host software would write a stream to an SD card, and the controller would read the commands from the same card, controlling the motors and filling the buffers as described. This was my original ad hoc command set,...