Search found 428 matches

by dragonator
Sat Jan 05, 2019 4:05 pm
Forum: Props in progress
Topic: The Turret
Replies: 9
Views: 4191

Re: The Turret

2019 will be started with me trying to finish the Turret. It has been standing at my local hackerspace for over a year and a halve, unfinished. I have had a few weeks to design things, so I though I'd post updates on the Turret here. Last time I worked on it, it was after SHA2017. A mad struggle to ...
by dragonator
Sat Jan 05, 2019 9:22 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299445

Re: Hacking the HP45

Oasis runs 2 controllers. One is motion, controlling the full gantry, spreader, and pistons. The other is the inkjet driver, controlling the printhead. It is separated because writing motion drivers sucks, and having 2 timing critical, complicated things run on the same controller in the past has pr...
by dragonator
Fri Jan 04, 2019 1:47 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299445

Re: Hacking the HP45

Oasis runs 2 different controllers. One is arduino Uno based and drives all the motion. The other is the standalone inkjet controller. The inkjet controller takes it's position from an encoder on the gantry. I cannot use DMA to also control the steppers because they are not attached. If they did it ...
by dragonator
Thu Jan 03, 2019 5:38 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299445

Re: Hacking the HP45

I have been somewhat busy this vacation getting DMA to work. I am not at a point that I have all of it working in principle, all I need to do now is test it with an actual printhead. I have not said much about it here, but I am busy getting DMA to work for the inkjet printhead. Right now I need arou...
by dragonator
Sun Dec 16, 2018 7:53 am
Forum: 3DP printing
Topic: Zcorp Z402 project
Replies: 4
Views: 1448

Re: Zcorp Z402 project

Dusseldorf is still a manageable distance for me, I would love to come over some time.
by dragonator
Fri Dec 14, 2018 4:53 pm
Forum: 3DP printing
Topic: Zcorp Z402 project
Replies: 4
Views: 1448

Re: Zcorp Z402 project

Sounds motivating.

I will be very interested in how Zcorp solved a lot of the powder and inkjet related problems. I think I still can learn a lot from these machines. Lets hope at least one will manage to print, if for reference sake only.
by dragonator
Tue Dec 04, 2018 5:42 pm
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299445

Re: Hacking the HP45

It draws peaks of around 4.5A at 12V, but on average it should be 1-2A. The duty cycle on the scale of milliseconds is lower than 50%, probably 10%-20%.
by dragonator
Sat Dec 01, 2018 10:42 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299445

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 dragonator
Sat Nov 24, 2018 5:58 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 148
Views: 30046

Re: Hacking cartridge HP 84/85

I would really like to see this printhead work and help you, but I really lack the time. When I do get time for this, I would like to help, but that could be months. Did the printhead just leak when you applied 12V? Did you only connect the 12V (and ground) or did you also attach the signal pins to ...
by dragonator
Sun Nov 18, 2018 8:50 am
Forum: 3DP printing
Topic: Hacking the HP45
Replies: 518
Views: 299445

Re: Hacking the HP45

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.