1 Topic by mm2tts (edited by mm2tts 2013-06-04 15:48:40)

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Topic: Modified Fan mount for J-Head

I've installed a J-head extruder on our SD2 and it's working great, but it needed a fan back on it for .1mm layers and PLA. I had used Ian Johnson's ducted 40mm mount, but that had needed modification with the original extruder head as it wouldn't fit under the x-carriage. The new J-head is shorter than the original extruder so the new fan duct for it needed some major mods to avoid the x-carriage and still direct air around the the rear of the hot end. It also needed to be able to direct air directly at the cooling fins of the J-head to compensate for the duct being in front of it.

Here are some pictures of the finished mod mounted to my modified Lawsy MarkIV extruder mount (which the J-head fits beautifully).

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2013-06-04 10.46.04.jpg 85.63 kb, file has never been downloaded. 

2013-06-04 10.46.20.jpg
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2013-06-04 11.01.40.jpg
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2 Reply by DePartedPrinter

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Re: Modified Fan mount for J-Head

nice work.

SD2 with E3D, SD Press, Form 1+
Filastruder
NYLON (taulman): http://www.soliforum.com/topic/466/nylon/

3 Reply by elmoret

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Re: Modified Fan mount for J-Head

STLs?

Filastruder - the robust, inexpensive filament extruder
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4 Reply by DePartedPrinter

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Re: Modified Fan mount for J-Head

elmoret wrote:

STLs?


This was going to be my next question.

SD2 with E3D, SD Press, Form 1+
Filastruder
NYLON (taulman): http://www.soliforum.com/topic/466/nylon/

5 Reply by mm2tts (edited by mm2tts 2013-06-05 13:16:30)

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Re: Modified Fan mount for J-Head

Here is the STL of the duct. Be aware that the spacing of the mounting boss has been modified from Lawsys original MKIV mount.

I've included my modified MKIV. The mounting bosses in the extruder mount are designed to be tapped for M4's.

Post's attachments

fan duct 6.zip 1.54 mb, 11 downloads since 2013-06-05 

mk4extruder_body.zip 524.41 kb, 14 downloads since 2013-06-05 

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6 Reply by wire10ga

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Re: Modified Fan mount for J-Head

DePartedPrinter wrote:

nice work.

+1

SD2 - Glass Bed, Fans on PCB and Y motor, Custom enclosure
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7 Reply by FatalDischarge

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Re: Modified Fan mount for J-Head

My biggest complaint after I upgraded to the j-head was that there was no good fan duct that worked with it. Well, here we are.
Good stuff here.