Search found 595 matches

by dragonator
Sun Jun 26, 2022 9:13 am
Forum: 3DP printing
Topic: NC connected instead of NO in demux circuit
Replies: 3
Views: 12977

Re: NC connected instead of NO in demux circuit

The circuit board you are using is a fairly old design, so I do not know everything about it anymore. The board is in your photo not connected to the 12V and safety correct? I will assume that everything else is working on the board you are using, and that for some reason the input is inverted. We c...
by dragonator
Fri Jun 24, 2022 8:20 pm
Forum: 3DP printing
Topic: NC connected instead of NO in demux circuit
Replies: 3
Views: 12977

Re: NC connected instead of NO in demux circuit

I cannot judge what relay you are using right now. Simply connecting the relay with wires to the board and swapping NO and NC should fix the issue you are having. Now that you are approved you should be able to add image (or within 3 posts, I forgot what the forum was set to)
by dragonator
Thu May 19, 2022 4:24 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2889657

Re: Hacking the HP45

Any recommendations for chip that may also work and is more robust? In my case I want to drive 2-4 nozzles so i need like 5 output lines max. Also bonus points for DIP package availability. Thanks for the information. This is incredibly valuable knowledge. Sad to hear it cost 2 printheads. I have h...
by dragonator
Thu May 19, 2022 4:21 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2889657

Re: Hacking the HP45

Hello, when i test nozzles , at the middle of 2 side there is no ink. İ replaced cardridge but same result. any idea about what is the problem which i control first. The pattern of nozzles you are missing indicate that a full primitive on each side has either failed, or is not connected to the prin...
by dragonator
Sun May 15, 2022 8:46 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2889657

Re: Hacking the HP45

And i also i need your another help about hp45 nozzle array. Cardridge has 2 column with 150 point each. i want to learn sequence from 1 to 150 each. i mean left top to bottom each hole equals to primitive x address. That is actually quite simple. The odd primitives are on one side, and the even pr...
by dragonator
Wed May 11, 2022 5:14 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2889657

Re: Hacking the HP45

Aux pins are used to control external hardware. On V4 there are for instance 9 pins broken out for trigger signals, encoders and such. To do anything with these pins the firmware does need to be made to handle them. I do not know how much earlier versions of the firmware did with them.
by dragonator
Tue May 10, 2022 5:19 pm
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 58
Views: 242094

Re: Standalone controller V4.0

Hello,

It is not a sin to ask the question here. There is a quite a bit of information spread over a lot pages, so it is a bit difficult to find specific details.

If you have any more specific questions feel free to ask.
by dragonator
Mon Apr 11, 2022 7:15 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 749
Views: 2889657

Re: Hacking the HP45

There is now a proper guide on how to refill the HP45 printhead. It can be found here: https://ytec3d.com/refilling-hp45-printheads/

If there are any pointers or questions let me know and I will add them.
by dragonator
Sun Apr 03, 2022 8:53 am
Forum: I made a:
Topic: GlaDOS lamp
Replies: 25
Views: 103531

Re: GlaDOS lamp

The easiest files I have are the STEP files, available here: https://ytec3d.com/downloads/

Upon request I can send the Solidworks files, but they are 2012, and made in a student version, so not actually that great to use.
by dragonator
Fri Mar 18, 2022 7:00 pm
Forum: 3DP printing
Topic: Standalone controller V4.0
Replies: 58
Views: 242094

Re: Standalone controller V4.0

The first example is now live. I have turned it into a bit of a project on it's own, an SMD tape printer.

https://ytec3d.com/hp45-example-smd-tape-printer/

If there is any feedback on information missing or things that are unclear let me know so I can update the page.