Search found 595 matches

by dragonator
Thu Jan 05, 2023 6:45 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890257

Re: Hacking the HP45

Commander prints fine, but it only sends bitmap images to a controller. It is not capable of controlling a machine to move the printhead. The new controller board runs fine on Oasis controller, it is just that the old controllers miss features used by inkjet commander. New stuff is mostly backwards ...
by dragonator
Wed Jan 04, 2023 6:32 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890257

Re: Hacking the HP45

The weird errors are gone and this looks like a perfectly normal sweep to me. I have to say I am at a complete loss here. I have absolutely no clue why the controller prints these lines. They do seem to correspond with certain parts of the print, but this could not be the controller printing other l...
by dragonator
Wed Dec 21, 2022 6:50 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890257

Re: Hacking the HP45

I have not had this issue myself. It does sound heat related though. The slow buildup and the resetting behavior makes me thing that the printhead is overdriven. Do you have a way to lower the voltage on the primitives without lowering the voltage on the addresses?
by dragonator
Tue Dec 20, 2022 4:45 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890257

Re: Hacking the HP45

I also do not see the lines. What I do see however is a lot of weird errors popping up. Dec 17 20:56:56 raspberrypi oasis: Qt: XKEYBOARD extension not present on the X server. Dec 17 20:56:56 raspberrypi oasis: QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-pi' Dec 17 20:56:56 ...
by dragonator
Sat Nov 26, 2022 4:28 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890257

Re: Hacking the HP45

I marked the direction of swipe. It does happen at the beginning and also during the swipe. Sometimes there are multiple mis-jets sometimes there are only single vertical lines. That is really what I do not understand. There is a known issue that on one side the nozzle table has a few swaps in it. ...
by dragonator
Tue Nov 15, 2022 6:22 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2890257

Re: Hacking the HP45

There are basically 2 ways the controller currently can print. The first is through an encoder. This is how it was originally designed for Oasis. The controller keeps it's position and when it sees the to be printed image is passing under the printhead in the right direction, it prints the image. Th...
by dragonator
Tue Nov 08, 2022 5:49 pm
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 58
Views: 242173

Re: Standalone controller V4.0

Then I did indeed misunderstand. I think I understand your new explanation. If a printhead refilled with a new binder works on both controllers, and an original printhead with ink only works on the V4 and not on the V3, then something is indeed off. This is not something Software. What you are exper...
by dragonator
Mon Nov 07, 2022 7:07 pm
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 58
Views: 242173

Re: Standalone controller V4.0

If both controllers return 300/300 and prime ejects ink on both, The most likely culprit is that the buffer is not printed. Can you verify that on the printing controller the buffer (BRL) is emptying when it is printing, and filling when you send an image? Something might cause one controller not to...
by dragonator
Sun Nov 06, 2022 6:26 pm
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 58
Views: 242173

Re: Standalone controller V4.0

Have you ever had the V3 working? or is this one still unused as a unit? What software are you using to drive the controllers? The V3 needs to have a jumper connected to connect the 12V to the VHD. The V4 has this one connected by default. The prime function should work on both units, so this is a d...
by dragonator
Wed Oct 05, 2022 4:59 pm
Forum: 3DP printing
Topic: working on slicer in blender
Replies: 22
Views: 140162

Re: working on slicer in blender

Probably not without massive alterations. The Teensy 3.2 has a DMA and 32 I/O pins. The Teensy 2.0 8 bit, only 16Mhz, has 25 I/O pins and no DMA. The latest version of the firmware needs DMA to work. The 2.0 is already not drop in compatible with the 3.2. I assume you want to use it together with th...