by orcinus » Sun Apr 06, 2014 5:04 pm
Re: hotend - at this point, the only thing i can do is recommend people to stay away from it.
It's misdesigned out of the box and, even if it were working properly, it wouldn't be worth it.
I've sent an e-mail to 2engineers complaining about it not being usable despite the cooling (i even tried sticking a 50mm fan right in front of it, 3 cm away) and received no reply. Kinda weird, considering they were very responsive up to that point (sent them the photos of the extruder, updated them when the package came in etc.).
On top of that, i've seen someone post about another ceramic hotend on the reprap forum, with a youtube clip of it in action - that one was made from Zirconia as well, but with thinner walls, fins and everything else this design is missing. Snooping around the posters channel, i realized it's the same guy (or people), i.e. 2engineers.
Meaning they've knowingly sold a defective design in order to finance a v2 for themselves.
All of this is conjecture, of course, but even so - more than a bit shady.