A few hours later and I have two E3D volcano hotends directly driven by two Bondtech QR extruders. Everything has been wired uo to Molex Micro 16 pin connectors for easy swapping of extruders.
I saw this earlier in the bondtech group but I didn’t realize that cooling fans were there. That’s clever and tiny. Can you elaborate on that setup (what the fan is, provide the source model that I could modify to fit on some heads I’m designing)?
So the fans are blower style fans from digikey. They are 30x30x10mm.
link: http://www.digikey.com/products/en?mpart=BFB0312HA-A&v=603
If there is a certain address you want me to send the file to I can no problem.
30x30x10 micro blower 12v! Didn’t think they exist… Thx
seemecnc sells them as well. There are also 5V and 24V versions
Wow those are some expensive fans.
I’ll gladly take a STEP/ XT/ Inventor file - whatever you’ve got.
Raykholo (at) gmail
Thanks!
Looks like a really good setup 
How good are the bondtech extruder? I dont know much about them,
Very.
@raykholo OMG dude you answered all my questions. Your the coolest dude!..
Seriously what are the advantages of this extruder vs any other manufacture, like e3d or seemecnc? Do they happen to be using some other geared stepper no one has access too that make them better’? From what i can see its a plastic body with a some type of teethed pulley and pre-load bearing. Whats make this one so special?
Well, I don’t have one (yet). But sarcasm aside, everyone I have spoken to that does has said that they are extremely reliable, tend not to jam, all the good stuff, etc.
It’s an answer of few words:
Bondtech? Yes.
So my Phantom Extruder is a traditional pinch wheel design where a bearing just presses the. filament into the drive gear. My extruder literally rips through filament though. Stripped filament is a common thing if your settings arent right or the pressure on the filament is too much or not enough.
The bondtech solves this by putting teeth on both the drive gear and the idler. The gearing between two drive gears allows more dfiving force to be transferred into the filament.
The geared stepper is a pretty basic one. More torque and a finer extruding resolution if you need it. Nothing special.