Search found 17 matches

by jnesselr
Fri Jan 04, 2019 5:40 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

The other option is that you can use DMA on the motion controller and have it send out a sort of clock signal to the inkjet controller to perfectly synchronize the two. This may, however, be based on a lack of understanding on how you'e synchronizing them now. Do you mind going into a little bit mor...
by jnesselr
Fri Jan 04, 2019 7:06 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

DMA can be difficult to get right, but I definitely think it's the right direction. Theoretically, if you built a board from the ground up, you could use DMA to control the stepper motors and the inkjet head based on the same timer so that everything would be perfectly synchronized.
by jnesselr
Sat Dec 01, 2018 5:27 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

Hello Masic 1- The HP45 can be refilled with some effort. I have before. The blue ink in Oasis started out clear. I simply added blue to it. 2- They should exist already, though I do not have them myself. It should not be impossible to modify one to CISS. 3- I currently print 50mm/s. I am currently...
by jnesselr
Sun Nov 18, 2018 11:47 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

dragonator wrote:
Sun Nov 18, 2018 8:50 am
I have not yet, though I am strongly considering it. I am now at a point where I can benefit from CISS. I do think you need to get a quote first, but I can do that fairly easily.
I went ahead and submitted a quote, but have not heard back yet.
by jnesselr
Sat Nov 17, 2018 8:17 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

@dragonator -I found refillable HP45 with continues ink system http://wanniansheng.en.made-in-china.com/product/poBnEFOrbvUY/China-CISS-Cis-Refillable-HP45-Transparent-Body-Inkjet-Cartridge-HP45-15-.html . This would be perfect solution for any application as it does not need to be cleaned from bla...
by jnesselr
Fri Sep 29, 2017 6:53 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

I'm currently looking into the HV57908 because it looks like it can support high voltage outputs for up to 64 outputs at the same time. I'm trying to figure out what the difference between driving the primitive outputs and the address lines are. As best I can recall, this is a current driven applica...
by jnesselr
Wed Sep 27, 2017 7:40 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

I see. I don't mind using either, and if we don't need the space, that's good. My goal is to eventually make a board that can handle 5 of these, so that's why I presumed I would need more room. I'm also going to have to make sure I have a really reliable current source.
by jnesselr
Wed Sep 27, 2017 7:44 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

It looks nice! Can you release some documentation or schematics on that controller? What do you want to change in the next version besides going to 0603? Also, what don't you like about 0402 components?
by jnesselr
Fri Nov 04, 2016 7:34 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

evomotors wrote:HP45 Controller V1.01 comes in purple too :)
Isn't there a way that people can just reorder the board if it's from osh park? I'd like to order from osh park because I love their PCBs and I know someone there.
by jnesselr
Sun Oct 23, 2016 9:21 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299897

Re: Hacking the HP45

evomotors wrote:HP45 is hollow and does not have sponge.
That's very interesting. How did you find that out, by cutting one open? I'm still curious how you change the ink out and clean it.