Ytec3D Forum

The best I can do is a manual for the C8855 driver, which I can send by mail. It has no software, and I don't think a wiring diagram of the C8855 itself, but it does explain how to roughly use the C8855.

I have heard hints of stuff like this happening before, but I have never seen it personally. My quess would be to measure resistance in the "wrong" direction, ie positive lead on ground, and negative leads on addresses and primitives. I have noticed that resistance is based on polarity. Ho...

I did look at PJRC, the maker of the Teensy and indeed they expect the 3.2 and 3.5 to never fully recover from these shortages. I do not plan to update the firmware. I have mostly stopped with the inkjet for the time being. The Teensy 4.0 and 4.1 can be made to work, but there are 2 ways. 1. Use the...

At this point all I can offer is suggestions as to what you can try. I have never had these issues, and I don't have the hardware to try and reproduce. The thing I'd try is lowering the voltage. If you have a DC-DC converter, you can hook the boost demultiplexer to it (after removing a few of the co...

Towards the end I had a Plan B running with an Arduino Due, but this was a really custom machine, which was difficult to be shared. It did print 3x faster though. In any case, we are trying to fix symptoms, not the issue. I never had a Plan B cut out half print (besides mechanical failure). Can you ...

I sadly missed your message, therefore the late reply. Slowly getting worse sounds like a heat issue, where the printhead heats up too much. Are the pauses between you printing again long, or is it right after. You can try slowing down the printer to make the head absorb less heat, or try lowering t...

Hello, I myself do not know much about anything other than the HP45. I do know there has been some effort to hack the HP84/85, which seems to be similar to what you are using: https://ytec3d.com/forum/viewtopic.php?t=4755 On this page there is suspected pinouts, logic analyzer files and more details...

The pogo pins not connecting might be a cause, but you'd have to have an issue where a random address IS connected, and the rest isn't while all primitives are properly connected and most grounds are. If there was a random pattern I could believe you had a bad pogo pin connection, but with what seem...

I will have to post this at some point in more detail, but until further notice I do not plan on continuing the HP45 stuff. I might pick up small projects including it, but I have no real interest in pursuing the HP45 as a core project. The V4 will be fully shared, and the firmware and software are ...

When I try and hold a ruler to the lines, I have a hard time finding a walking error. There is definitely a small shift on the right most bit, but over the rest I have a hard time spotting a stair step. It looks more like a zigzag. Can you verify that the head is perpendicular to the axis? It seems ...