Search found 94 matches

by Wonko
Mon Dec 16, 2019 4:12 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 161
Views: 44029

Re: Hacking cartridge HP 84/85

Thank you very much for summing up all your findings! This is really cool.
by Wonko
Sun Dec 08, 2019 9:05 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 161
Views: 44029

Re: Hacking cartridge HP 84/85

After having helped you over the last 16 pages, it would really be nice to get a little bit more information on the protocols and timing. I'll check the most recent pinout, but I am pretty sure that this is not enough to replicate your success ;-)
by Wonko
Tue Oct 15, 2019 4:27 pm
Forum: 3DP printing
Topic: Generic powder machine controller
Replies: 19
Views: 3899

Re: Generic powder machine controller

That's very nice. Your slicer is on my support list. I'm wondering how far your slicer is to produce image files instead of gcode? This is a volumetric slicer. The models are handled as voxels. Layers and slices are images. Images can be written anywhere in the process. It's as simple as adding a s...
by Wonko
Fri Oct 11, 2019 9:22 pm
Forum: 3DP printing
Topic: Generic powder machine controller
Replies: 19
Views: 3899

Re: Generic powder machine controller

Iota https://github.com/MatthiasWM/IotaSlicer is by no means complete, but it is an open source texture slicer. The texture functionality is currently disabled because optimizing voxel code had priority for a while, but the source code is still there. There is an improved texture slicing system in t...
by Wonko
Sun Sep 29, 2019 4:43 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 161
Views: 44029

Re: Hacking cartridge HP 84/85

The code that describes the CPU of the Teensy 4.0 is here: https://github.com/PaulStoffregen/cores/blob/master/teensy4/imxrt.h and the code to read and write digital ports is here: https://github.com/PaulStoffregen/cores/blob/master/teensy4/core_pins.h Reading this, you can set and clear many pins a...
by Wonko
Sat Sep 28, 2019 9:20 am
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 147890

Re: Hacking the Xaar 128 printhead

I used a single supply with a single output, but decoupled them. One supply should be as stable as possible at 36V, but does not need much power at all. The other one needs more amps, but is allowed to fluctuate more. Separating is easy: split the 36V at the supply, run each supply through a diode f...
by Wonko
Mon Sep 02, 2019 3:42 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 161
Views: 44029

Re: Hacking cartridge HP 84/85

Mouser is international, including Poland. And they do sell the Teensy series:
https://pl.mouser.com/ProductDetail/Spa ... cgQAvD_BwE
by Wonko
Sun Sep 01, 2019 5:42 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 161
Views: 44029

Re: Hacking cartridge HP 84/85

How reliable are the latest drafts on this really nice printhead? Are the voltages correct? I saw some of the timings, but what are the chance of them working? I hate to see MAsic12345 struggle on the software side after he did such nice research on the hardware side, but it is so difficult to help ...
by Wonko
Thu Aug 29, 2019 8:47 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 161
Views: 44029

Re: Hacking cartridge HP 84/85

The teensy 4.0 was released a few weeks ago. It is faster by a factor factor of 100 over the 3.2. Not sure if that is true for all operations, especially DMA, which seems to be the solution here.
by Wonko
Tue Jun 04, 2019 1:36 pm
Forum: 3DP printing
Topic: Hacking the Xaar 128 printhead
Replies: 287
Views: 147890

Re: Hacking the Xaar 128 printhead

Teensy have enough pins. If you need more, Arduino Due are an option (ARM CPU). Xaar heads use a serial protocol and can be daisy-chained. If you can be fast enough, you can control as many heads as you wish with the same control pins.