Search found 91 matches

by Wonko
Mon Feb 18, 2019 7:07 pm
Forum: 3DP printing
Topic: giving away my ZCorp Z400 for free
Replies: 2
Views: 1222

Re: giving away my ZCorp Z400 for free

Some pics:
by Wonko
Mon Feb 18, 2019 7:04 pm
Forum: 3DP printing
Topic: giving away my ZCorp Z400 for free
Replies: 2
Views: 1222

giving away my ZCorp Z400 for free

@dragonator has first dibs. I am giving away my ZCorp machine for free to whoever is willing to pick it up near Düsseldorf, Germany. Please contact me at z44@matthiasm.com I bought it many years ago with a fried ribbon cable to the printhead. In all that time, I found replacement ribbon cables, repl...
by Wonko
Thu Jan 31, 2019 9:02 pm
Forum: 3DP printing
Topic: color 3dp slicer software
Replies: 4
Views: 1287

Re: color 3dp slicer software

I wrote a slicer that can do just that. It is by no means finished, and the current version has the texture stuff disabled because I was trying to control a mixing FDM printer first, and then finish the texture stuff. If you are really interested and have a printer that would work with this, I can s...
by Wonko
Wed Jan 30, 2019 7:44 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 130375

Re: Hacking the Xaar 128 printhead

I used some unbranded oil based ink. Water, that I first used for testing and drove me crazy, because nothing worked, well, water does not work. Just search the net for "xaar 128 compatible ink": https://www.independentink.com/a01017bk.html for example'
by Wonko
Sun Jan 20, 2019 9:16 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 130375

Re: Hacking the Xaar 128 printhead

I'd be interested in the PCBs mentioned earlier.
by Wonko
Fri Dec 14, 2018 7:15 pm
Forum: 3DP printing
Topic: Zcorp Z402 project
Replies: 4
Views: 1436

Re: Zcorp Z402 project

Mine did print a Sake Sugar model years ago. If you like, @dragonator, you can come over to Düsseldorf and take a very close look at and inside the machine and all its working parts... . No clue where @emptyset is located though ;-)
by Wonko
Thu Dec 13, 2018 10:31 pm
Forum: 3DP printing
Topic: Zcorp Z402 project
Replies: 4
Views: 1436

Re: Zcorp Z402 project

Good luck with it. I have had one for 10 years or so. The printhead are made from Unobtainium. The ribbon cables to the printhead usually rot away from the binder chemicals. The harddrive in the DOS circuit board in the back of the machine will probably not last very long, so you should make a disk ...
by Wonko
Sat Nov 17, 2018 8:47 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29660

Re: Hacking cartridge HP 84/85

Here is an example to toggle bits as fast as possible using assembler: https://forum.pjrc.com/threads/31350-Maximum-GPIO-toggling-(Teensy-3-2) You can modify 8 or even 16 bits with a single instruction, but you have to prepare the patterns that you want to send. There is also an instruction to set o...
by Wonko
Sat Nov 03, 2018 2:46 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29660

Re: Hacking cartridge HP 84/85

Serial.println(...); will take forever in the context. If you set 19200bps, sending a digit plus a newline character will take 8 bit per character plus start bit plus stop bit times two, or 19200/20bit = 960 calls per second maximum plus overhead. A microcontroller is different to a PC. The serial l...
by Wonko
Fri Nov 02, 2018 9:20 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29660

Re: Hacking cartridge HP 84/85

Teensy uses an emulation program to allow for PORTB and PORTD commands, because Teensy has a different CPU. Please check the link below to see how Teensy ports are named and assigned: https://forum.pjrc.com/threads/17532-Tutorial-on-digital-I-O-ATMega-PIN-PORT-DDR-D-B-registers-vs-ARM-GPIO_PDIR-_PDO...