Re: Building Pwdr, a Powder+Ink 3D Printer
- --- In firstname.lastname@example.org, "arthur2shedsj" wrote:
> The pulse width and voltage may be varied to tune the drop shape based on the fluid being jetted. The values in the patents are just there to complete the claim.Well, they give a number that basically works, but more importantly, they give the pin-out. I will spend some time to reverse engineer the pin-out of the Canon head as well. Once the ink jet shield works for 300 nozzles, it will work for any number of nozzles... .
> You can bulk feed the HP45. It just needs a regulator and an external ink tank. The other way is to gut the foil pouch and then use foam like the Lexmark and seal the case. Add a nipple and external line and tank and you're done.That is great to know!
> The nice thing about Canon heads is the large number of nozzles. The bad thing about the Canon heads is the large number of nozzles since if you lose a few to clogging you have to replace the whole head, and they are a lot more than just $30.The Canon heads are $60. As opposed to the heads in cartridges, that are made to last for one filling of ink, these are made to last for the life time of the printer. Well, Canon being Canon, they provisionally claim that the printhead is damaged after so many pages, so you go and buy a new printer with a more elaborate ink tank copy protection system ;-) . They were the first ones to be caught in the '90ies with a function in the printers, claiming to be defect when they weren't... .
So, my order of implementation will be the 72dpi black cartridge with PWDR 0.1. When that works flawlessly and I get the first correct print, I will move on to the HP45 (well, first one for the binder, then four more for the color). Knowing that they can be bulk fed is great. Thank you.
If any of that fails, I will have a go at the Canon head... .