Search found 94 matches

by Wonko
Wed Mar 15, 2017 2:49 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 148208

Re: Hacking the Xaar 128 printhead

Answers: 1. I have never tried to achieve the firing rates, simply because my transport is too slow. But a fast CPU, preferably suing hardware SPI, is needed 2. I recommend using the Teensy. They are much more powerful in every aspect. 3. Yes, that's where I order them. No complaints. BTW: adapter b...
by Wonko
Tue Mar 14, 2017 9:26 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 148208

Re: Hacking the Xaar 128 printhead

Hi Moriarty. I did finish a related project with the Xaar head recently, but I am not in the position to publish the result. Sorry. All that was written here pretty much contains all the information needed to make the head work very easily. It's a fantastic head that is very easy to control, fast, a...
by Wonko
Wed Mar 01, 2017 4:17 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 148208

Re: Hacking the Xaar 128 printhead

The pinout is the same for all XJ128 heads, no matter if 80 or 40 pl, wetting or non-wetting. There is no way to determine in software which head is installed.
by Wonko
Sun Feb 19, 2017 11:28 pm
Forum: 3DP printing
Topic: Oasis 3DP printer
Replies: 41
Views: 39171

Re: Oasis 3DP printer

Hmm. SVG, a vector format? Your inkjet cartridges create a 2 dimensional raster of dots, so any image format would probably be more appropriate. There are slicers out there that generate images, GIFs for example (lossless compression in 1 bit or more). And there are a bunch of simple OpenSource read...
by Wonko
Mon Jan 30, 2017 6:42 pm
Forum: 3DP printing
Topic: Oasis 3DP printer
Replies: 41
Views: 39171

Re: Oasis 3DP printer

I love to see this happening! Great job. Maybe you need to use two processors in parallel, one for the head and one for the motion control?
by Wonko
Thu Jan 19, 2017 7:23 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 148208

Re: Hacking the Xaar 128 printhead

Maybe he was referring to my link: https://youtu.be/dnBx0aCWNms

I have bought UV Ink, but not tested it - no time. It should work though. The head is capable of using UV ink AFAIK, and there is nothing special required on the software side.
by Wonko
Wed Jan 18, 2017 8:39 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 148208

Re: Hacking the Xaar 128 printhead

There is not much science behind it. I just tested around a bit and added a combination of caps. The high power line has 220uF (c3) or something like that. The low power line has 1uF (C1) and 10uF (C2) in parallel, filtering different lengths of pulses. If simply works for me. The diodes simply ensu...
by Wonko
Tue Jan 17, 2017 8:29 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 148208

Re: Hacking the Xaar 128 printhead

The 5V and the 35V GND lines should not be connected anywhere because they are connected inside the print head. One 35V supply must be as precise as possible. It does not require a high amperage, but it should be constant. The second 35V supply should provide higher amps, but doesn't need to be as s...
by Wonko
Thu Jan 12, 2017 10:49 pm
Forum: 3DP printing
Topic: Z-Corp 310+ Operating system needed
Replies: 6
Views: 7107

Re: Z-Corp 310+ Operating system needed

They use the same motherboard? Seriously? My Z400 uses a PC-AT motherboard and a 80MB harddrive. It looks similar to this one:

http://www.engr.uky.edu/~fml/lab/z400.png

But if it really helps, I will try to find a PC with a suitable controller. It may be pre-IDE... .
by Wonko
Mon Jan 09, 2017 5:43 pm
Forum: 3DP printing
Topic: Z-Corp 310+ Operating system needed
Replies: 6
Views: 7107

Re: Z-Corp 310+ Operating system needed

I have a Z400. I doubt that a HD dump would help. Sorry.