Hi pr3dmet,
first of all, what material are you talking about? A few printing parameters (speed, layer height, cooling etc.) would be good to know, too.
Cheers,
kuraasu
Thanks for quick reply, I’ll post more details after Holland:Spain 
Material is PLA, original from Velleman.
Layer height: 0.4
Cooling: disabled
speed: 
Hi pr3dmet,
standard 0.4 mm nozzle? If yes (or even smaller), the layer height is most likely too high and the extrusion width too low. Both result in low layer bonding.
Recommended layer height values are 80% of the nozzle diameter or below. If bonding is still not good enough, increase the extrusion width. Widths below nozzle diameter are possible in some cases, but with bonding issues a value larger than the nozzle diameter should be choosen, and at least 1.5 times the layer height.
With a 0.6 mm or 0.8 mm nozzle, your layer height matches the above mentioned criterion, but the extrusion width issue remains.
Further possible problems: the temperature settings from the standard config may be off for your filament (different colors need different temperatures).
Cheers,
kuraasu
Hi kuraasu,
Thanks for your reply.
I use 0.4 nozzle that came with E3D hotend (with original heater).
Currently I use red and green PLA filaments from Velleman;
I’ll try with these settings:
Layer height: 0.32
Ext. width: 0.48
Temp: 210
It’s a bit better, but prints are still very fragile.
Well your extrusion witdth is much too low. Try even lower layerheight also. 0.2-0.25 should be good.
I have no problems with almost same setup (e3d-v5). My PLA prints gets so tough it’s almost impossible to break even at 0.3.
But i use simplify3d for all my stuff.
I’ve set extrusion width to 0.7 and results are great, rock solid prints . Thanks to all for input.
Can I mount a E3D V6 with a [color=#FF0000]1.75[/color] filament on my K8200?
What kind of Fan for cooling the Prints did you combine with the E3d-V6 ?
Cheers,
David
Hi,
@kaviros: the extruder is designed for 3 mm filament, so the filament path is easily wide enough for 1.75 mm filament. But that’s also the problem: the thin filament is much more flexible, and it has less guidance, so it is very likely that it bends and gets stuck between the hobbed bolt and the hotend.
If you replace the extruder with a version intended for 1.75 mm and groove mount (there are many printable extruder designs available), it should be possible.
@jaggifrank / David: you can use any fan nozzle you like, as long as it does not collide with the heater block. Since most heater blocks are roughly the same size, I have to admit there’s a large chance that nearly all fan nozzles meet this requirement. You can find many designs for suitable fan nozzles on Thingiverse and similar sites.
Cheers,
kuraasu
Hi,
I got my E3D but I need to wire the fan included with E3D. (12v)
I don’t want to use the K8200 fan for cooling the radiator than how to wire the E3D’s fan ?
Is it possible to wire both fans together ? ( without damaging the board )
the board voltage is 15v …
thx
Hi nevarore,
the “fan”-question is the same for both the v5 and the v6 version: viewtopic.php?f=53&t=10493&start=45#p45497
Cheers,
kuraasu
Hi
How hard would it be to mount an bowden version?
Looking towards an dual head setup.
Greets
Hi Passi,
using a bowden extruder / hotend isn’t that much of a problem (see the “Kraken” thread). You’ll just need some kind of mount to fix the two hotends next to each other. The groovemount top section of the hotends allows for several easy solutions (bracket, notch or screw inside a cavity, …); search through e.g. thingiverse to gather ideas and see what’s best / most easy to build in your case.
Most important part of building such a mount will be to make it adjustable in height for one of the hotends, so that you can level both nozzles perfectly with respect to the bed surface. In case of three hotends, two will have to be adjustable, of course.
Cheers,
kuraasu
Thank you for your quick response!
I thing i can use something like This:
thingiverse.com/thing:170086/#files
Using the dual head mount ofcourse.
Greets
Edit; or maybe this one?
thingiverse.com/thing:354591
Hey there!
I baught a e3d v6 that i am going to install on my k8200…
however… i think i have the Bowden style one… is this gonna be a problem? or can i just scip the tube and put filament straight in it?
Hi Kuraasu,
I’m looking forward to buy the E3D-v6 1.75 mm direct version (with PTFE Liner) for my K8200, to print the widest range of materials possible (like ninjaflex), and changing from 3mm to 1.75mm is preferable i think…but do i need the complete kit or the metal parts only?..12v or 24v?
Your help would be very appreciated! 
Cheers!
Hello Ahab,
You can use the heater and thermistor from original K8200 hotend. So in this case, you could go with the metal-only kit. However, you will need a fan, to keep the hotend cold. It is a standart fan, you can find it anywhere. Also, original K8200 heater is 12V. In order to use 24V heater, you need to add so called power expander, to use both 24V and 12V supplies.
Hope this helps
[quote=“Linas_capas”]Hello Ahab,
You can use the heater and thermistor from original K8200 hotend. So in this case, you could go with the metal-only kit. However, you will need a fan, to keep the hotend cold. It is a standart fan, you can find it anywhere. Also, original K8200 heater is 12V. In order to use 24V heater, you need to add so called power expander, to use both 24V and 12V supplies.
Hope this helps[/quote]
I mounted one of these marvelous hotend yesterday.
I think Velleman should switch their stock hotend for this one.
(i got the brand new 3mm E3D V6 for a better price than a replacement Velleman one! ???)
The E3D heater will run without problems, just do a PID Autotune and you will end up with way better heating times. ; )
Anyway, can somone of the E3D users around give me a starting point for the print settings?
(Slic3r settings for filament/print)