Search found 110 matches

by Wonko
Thu Sep 08, 2016 11:23 am
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 365
Views: 1313321

Re: Hacking the Xaar 128 printhead

Hi. Yes, sorry, I am still here, but we have a medical emergency. I'll be back in a few weeks.
by Wonko
Tue Jul 12, 2016 10:03 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890126

Re: Hacking the HP45

It's great to see some progress again. Fingers crossed.
by Wonko
Mon Jun 13, 2016 10:22 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890126

Re: Hacking the HP45

"entscheident" -> critical, as in: the temperature is critical for the release of the drop.
by Wonko
Thu May 26, 2016 8:46 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 365
Views: 1313321

Re: Hacking the Xaar 128 printhead

Yes, the 1001 is a whole different monster in itself. It has a completely different interface as far as I can tell, but no documentation seem to exist, and unless someone will pay Xaar for the documentation and a developer kit, I see no way to get to that information. Is your printhead mounted in so...
by Wonko
Thu May 26, 2016 1:46 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 365
Views: 1313321

Re: Hacking the Xaar 128 printhead

Hi Philipp, The head has only a single waveform that it generates internally. It needs well regulated 35V via two separate lines. The droplet size is fixed, but at 40pl or 80pl quite small. I can fire at 4kHz, so a decent rasterisation should be possible. I am currently adding the head to my printer...
by Wonko
Wed May 25, 2016 8:26 pm
Forum: 3DP printing
Topic: Oasis 3DP printer
Replies: 41
Views: 123885

Re: Oasis 3DP printer

Oh, wow! That does look very sturdy. Looking great!
by Wonko
Mon May 23, 2016 8:44 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890126

Re: Hacking the HP45

Looking great! You managed to squeeze things close together very nicely. I hope it'll work.

It's a longer drive (Düsseldorf), but I can offer you to use my pick'n'place and my oven if you plan to make more than one PCB.
by Wonko
Mon May 23, 2016 8:49 am
Forum: 3DP printing
Topic: Oasis 3DP printer
Replies: 41
Views: 123885

Re: Oasis 3DP printer

This looks really fantastic! I like the Y axis vertical design as it allows for an arbitrary number and size of ink cartridges. A horizontal design would be more limiting, you have plenty of height available, and the horizontal design could get in the way of the spreader. I also like the design of t...
by Wonko
Thu May 19, 2016 8:18 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890126

Re: Hacking the HP45

If you want to get the pin count down, you could use a CPLD chip like the Altera 3000 to create an SPI interface to control all the pins. SPI can be connected to many CPUs via hardware SPI interfaces or with the Arduino Due even via DMA, reaching 1Mbits per seconds easily, and 8Mbits with some preca...
by Wonko
Wed May 18, 2016 7:49 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890126

Re: Hacking the HP45

You can save yourself at least four chips. There are source drivers out there with serial input. Simply clock in the first bit, then shift, latch, shift, latch, etc. . This one is 8 bits with also 500mA, but i recall that there are 10, 14 and even 64 bits available. http://ww1.microchip.com/download...