New extruder carriage design for E3D Bowden Hot end V5

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alanh
Posts: 78
Joined: Tue Jul 23, 2013 7:08 pm

Re: New extruder carriage design for E3D Bowden Hot end

Post by alanh » Sat Oct 26, 2013 2:14 pm

Things seem to be better with 215. I'll try some more prints.

alanh
Posts: 78
Joined: Tue Jul 23, 2013 7:08 pm

Post by alanh » Sat Oct 26, 2013 3:23 pm

Thanks satoer !!!

It seems to be running much much better with 215 for PLA with the E3D hotend.

dsnijders
Posts: 30
Joined: Fri Jul 26, 2013 4:13 pm

Post by dsnijders » Sun Oct 27, 2013 1:25 am

I ran at 200 celsius for PLA. It worked but noticed that it was not delivering enough materials thru the nozzle (uneven deposit of PLA on the print bed). Maybe i should increase temperature to 215 also. Or could it be torque (power) of the extruder stepper motor? I have a felix 2.0 with the smaller size stepper motors (i think).

BTW: i switched back to the Felix hot end which Guillaume delivered to me. A new model, with a replaceable tip (from brass). It work great for me. No issues sofar with 1.5 mm retraction. We continue testing, but looks promising.

alanh
Posts: 78
Joined: Tue Jul 23, 2013 7:08 pm

Post by alanh » Sun Oct 27, 2013 10:16 am

Yeah, I've just seen the new hotend with fins for better cooling.

I may also switch back.

Bachgassenbande
Posts: 132
Joined: Sat Jul 20, 2013 12:50 pm
Location: Würzburg

Post by Bachgassenbande » Sun Oct 27, 2013 11:43 am

@alanh
The hotend V3 = with fins for better colling is also clogging
dsnijders has seems like a new version with a brass nozzle; this is maybe V4 of the nozzle if ever introduced

Hey just saw that you can by the nozzle now seperated.
V3 hotend
V4 Nozzle ????
Anybody bought one of the V4 nozzles? Is this something new?
Felix 2.0
E3D Kraken Hotend
3mm Glas bed
LED light bar upgrade

alanh
Posts: 78
Joined: Tue Jul 23, 2013 7:08 pm

Post by alanh » Sun Oct 27, 2013 1:29 pm

At 215, I'm not hearing the motor skipping, but I'm getting severe under-extrusion. See pic.

If I drop to 200, for this test piece it's much better but still one or two places where under-extrusion occurs. I also don't hear the motor skip on this particular piece.
Attachments
photo.JPG

alanh
Posts: 78
Joined: Tue Jul 23, 2013 7:08 pm

Post by alanh » Sun Oct 27, 2013 2:26 pm

The above was with SFACT.

If I switch to Slic3r, I can get a very good print with 215.

So there must be some SFACT setting that differs.

Anyway, looks like it's all software configurable and patience is required to get this working right.

EDIT: Slic3r is printing much thicker walls than SFACT which is probably why I get a better looking walled print with Slic3r.

Bachgassenbande
Posts: 132
Joined: Sat Jul 20, 2013 12:50 pm
Location: Würzburg

Post by Bachgassenbande » Sun Oct 27, 2013 8:52 pm

Seems like I found my KISSlicer setting;
at least it looks promesing.
IMG_20131027_204355_815.jpg
Terminator
Arrgh thats an though model; elements are breaking away and I had to tape them to rescue the model.
Infill of 15% was also not the best idea for that model; next time if I print it I will use 75% or higher, this should make the fragile elements much more stable.

Will post my settings tomorrow when print is finished.
Felix 2.0
E3D Kraken Hotend
3mm Glas bed
LED light bar upgrade

dsnijders
Posts: 30
Joined: Fri Jul 26, 2013 4:13 pm

Post by dsnijders » Mon Nov 04, 2013 12:59 pm

I gave up on the E3D hot end. Reasons:

- plastic coupler does not fit in heatsink.
- bowden tube fitting in heatsink is far too loose, which results in filament not being pushed into hot end (tolerance issue).

I am very disappointed, also because Sanjay from E3D never responded to my emails.
I switched back to the hot end from Guillaume.

alanh
Posts: 78
Joined: Tue Jul 23, 2013 7:08 pm

Post by alanh » Mon Nov 04, 2013 1:20 pm

Guillaumes new hot end looks good. It has a grub screw for both the heater and thermistor, and avoids any sealant to hold things in place.

The E3D hotend for me is problematic. I think the motor from the Felix 2.0 isn't powerful enough and I do get clogging at the end of the threaded rod where it meets the heater block. I think the E3D hotend probably needs boring out a little more to help extrusion.

I do tend to get Guillaumes current hotend flapping about at the top as there is very little to hold the hotend in place. If there's extra support to the top part of the shaft that would really help prints as I do tend to get banding because of this, that the E3D hotend doesn't show because it's held very tightly with satoers cage.

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