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J-head Hotend 1.75 Filament Bowden Extruder

Posted by Blisk

Blisk

J-head Hotend 1.75 Filament Bowden Extruder
February 06, 2016 05:18PM

Registered: 8 years ago
Posts: 74

Can someone tells me is there any limits with material if using this hotend.
Like some flexible pla or flexible ninja filament?
I am planning to upgrade my prusa i3 dual printer.

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Dust

Re: J-head Hotend 1.75 Filament Bowden Extruder
February 06, 2016 06:36PM

Admin
Registered: 13 years ago
Posts: 7,000

Most flexible filament do not work well in a bowden setup.

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Blisk

Re: J-head Hotend 1.75 Filament Bowden Extruder
February 07, 2016 10:23AM

Registered: 8 years ago
Posts: 74

thanks
i have in mind that and if i need flexible filament i will think of something to addon to print.
But as far as I read bowden and extruder V6 makes excellent results of printing far better than regular.
question now is only how to carwe a ptfe tube.
Which variation is best, 1 or 2 or 3?
I made a picture from side view of printer. Green is extruder and blue is feeder.
I think No.2 us best.

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Attachments:
open | download - Bowden.jpg (43.8 KB)

Dust

Re: J-head Hotend 1.75 Filament Bowden Extruder
February 07, 2016 10:52PM

Admin
Registered: 13 years ago
Posts: 7,000

depend on how high that is vs length of z travel, 2 will get squahed as Z rises.

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Blisk

Re: J-head Hotend 1.75 Filament Bowden Extruder
February 08, 2016 02:15PM

Registered: 8 years ago
Posts: 74

yes thats true, I will go with No.1 think this one is best
I looked at this printer which have like No2!

Edited 1 time(s). Last edit at 02/08/2016 02:25PM by Blisk.

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Attachments:
open | download - 2016-02-08 20_22_30-Geeetech Prusa I3 M201 3D printer DIY kit [800-001-0397] - $380.00 _ General Ele.png (463.3 KB)

Blisk

Re: J-head Hotend 1.75 Filament Bowden Extruder
February 08, 2016 02:27PM

Registered: 8 years ago
Posts: 74

Can someone tells me why is here a fan mounted on?

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Attachments:
open | download - DIY kit General Ele.png (36.4 KB)

blt3dp

Re: J-head Hotend 1.75 Filament Bowden Extruder
February 08, 2016 05:15PM

Registered: 10 years ago
Posts: 651

1 may cause too drastic an entry angle at the extruder when the Z axis gets too high. I'd go with option 3.

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Attachments:
open | download - Bowden.jpg (52.7 KB)

Blisk

Re: J-head Hotend 1.75 Filament Bowden Extruder
February 09, 2016 03:44AM

Registered: 8 years ago
Posts: 74

I thought about option 3 but it is really long path in tube I like to reduce that as much as possible.
If you look at printer I posted picture it have option 2 and works ok.