Hacking the HP45

Powder and inkjet printing
chbaird
Posts: 1
Joined: Fri Jan 17, 2020 6:52 pm

Re: Hacking the HP45

Post by chbaird »

Sean wrote:
Wed Jul 10, 2019 3:36 pm
kokoroto wrote:
Wed Apr 10, 2019 6:08 am
Sean wrote:
Mon Feb 12, 2018 10:34 am
it's too complicated, I have bought like this, it's much easier than your supplier, and it's much cheaper, I can help you to purchase these if you want.
Hi Sean,

Could you share information where to buy those things? I look for it to develop a printer using FPGA based hardware.

:)
Hi, sorry I didn't login in for a long time, just get your message right now, i have send you my email by PM.
Hi Sean, I'm also interested in purchasing these stalls and connectors. Can you please point me in the right direction?

Thank you. :)

smeric
Posts: 3
Joined: Sat Mar 14, 2020 11:08 am

Re: Hacking the HP45

Post by smeric »

Hi I build version 3.00 board and I upgrade it V3.02 I have teensty 3.2 I used "HP45 standalone is software used to control the Teensy 3.2 based standalone controller for the HP45
Copyright (C) 2018 Yvo de Haas" but I did not work as I want. I want to use it like a marker. its working on serial .. first of all I need to fire some ink from nozzle but its not. how can I test it. are there any code of that for test every nozzle ? .

I am trying to send "GTP" from serial and its turning to me "GTP:-C" what is it ?
when I am trying to use python controller its connecting but its not working also?

so I need some help to understood and test that hardware.
I need also simple test software..

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dragonator
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Re: Hacking the HP45

Post by dragonator »

Hello,

I assume you are currently using the V3.02 for both boards. The only real difference for you is that 1 resistor is connected differently. Other than that there are no real differences.

The GTP:-C means that the printhead is not found. Either you don't have power to the printhead, or it is not properly connected.

You say the python controller is connecting but not working. You get values back, like write left (it should be 997) but other than that it is not doing anything. If you get a -C on the temperature, it means something in the printhead is not connected properly and that should also prevent the printhead from printing.

Can you send pictures of your setup? (you should be able to now). It might help identify what is happening.

smeric
Posts: 3
Joined: Sat Mar 14, 2020 11:08 am

Re: Hacking the HP45

Post by smeric »

I am using HP45 standalone is software
I test 12v and 5v from teensy side but I can not touch any test point from controller card.
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smeric
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Joined: Sat Mar 14, 2020 11:08 am

Re: Hacking the HP45

Post by smeric »

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dragonator
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Re: Hacking the HP45

Post by dragonator »

The GTP:-C suggests the printhead is not connected properly. Either the pins do not align with the printhead properly (you can see if you take the controller of the printed part where the printhead pads sit in relation to the pins) or the big mosfet in the middle of the driver is not properly connected. It is however quite a challenge to measure this.

If you have the printhead connected to the PC and powered, and press test head, and it remains 0/300, something is not working on the board.

I would love to give you more detailed advice, but troubleshooting your board from here quite a challenge with the information I have.

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