# TAZ dual extruder mod files

**URL:** <https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142>\
**Category:** Hardware\
**Created:** [June 20, 2013, 1:59am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142 "2013-06-20T01:59:09Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![1013](https://avatars.discourse-cdn.com/v4/letter/1/8edcca/32.png) [@1013](https://forum.lulzbot.com/u/1013)\
**Post date:** [June 20, 2013, 1:59am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/1 "2013-06-20T01:59:09Z")

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original design discusion from here: [Dual Extruders and the TAZ](https://forum.lulzbot.com/t/dual-extruders-and-the-taz/91/1) I will try to use this thread specifically for the files and instructions.

I just put up the files on thingiverse.

> **[Lulzbot TAZ Dual Extruder mod by 1013](https://www.thingiverse.com/thing:106147)**
>
> My design of a dual extruder mod for the Lulzbot TAZ. This puts the budaschnozzles as close as possible (40mm center to center). and nearly all of the build platform is accessible to both extruders, once you alter the firmware for extra y travel. ...

and I will see if I can attach them here too. 3 total files, the mount, the adjustment block, and modified wades extruder housing (2 of these needed).

DOH…STL’s are not allowed for upload…trying zips.

UPDATE 6-25-2013: Added Supported motor moved extruder files for easier printing.  
[Supported motor moved extruder 1013.zip](https://forum.lulzbot.com/uploads/short-url/dvODvXi9d1d09N3gm6iaqV1wA3Y.zip) (355 KB)  
[TAZ dual extrude STPs 1013.zip](https://forum.lulzbot.com/uploads/short-url/6rilMmLdV2edSh04oZLv2QTnWkd.zip) (262 KB)  
[TAZ dual extrude STLs 1013.zip](https://forum.lulzbot.com/uploads/short-url/wOgPXg3X9oM0RqrdEkQsRB0HqXW.zip) (74.2 KB)

 ![TAZ Dual extrude 1013.jpg](https://us1.discourse-cdn.com/flex020/uploads/lulzbot/original/1X/ac5420ebedd20ffeab2b86cf9456a6d3886424fc.jpeg)  
 ![0614131202.jpg](https://us1.discourse-cdn.com/flex020/uploads/lulzbot/original/1X/51bd3d35873e0d24ff6f0a6d665199964968927b.jpeg)

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**Author:** ![Gemini64](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/gemini64/32/8_2.png) [@Gemini64](https://forum.lulzbot.com/u/Gemini64)\
**Post date:** [June 20, 2013, 2:22am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/2 "2013-06-20T02:22:46Z")

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Parasolid files (.X\_T) are only viewable by very expensive proprietary (commercial) software. Supplying your files in STEP (.stp) which is an ISO standard would make them more accessible. They could be imported into open source software such as FreeCAD, Heekscad, and possibly BRL-CAD.

Even though Solid Edge STEP export is awful at least it’s something.

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**Author:** ![1013](https://avatars.discourse-cdn.com/v4/letter/1/8edcca/32.png) [@1013](https://forum.lulzbot.com/u/1013)\
**Post date:** [June 20, 2013, 2:25am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/3 "2013-06-20T02:25:41Z")

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good point, I will use step files instead of parasolids.

DONE.

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**Author:** ![Gemini64](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/gemini64/32/8_2.png) [@Gemini64](https://forum.lulzbot.com/u/Gemini64)\
**Post date:** [June 20, 2013, 2:54am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/4 "2013-06-20T02:54:01Z")

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Thanks! All three STEP files checked fine in FreeCAD.

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**Author:** ![Orias](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/orias/32/3_2.png) [@Orias](https://forum.lulzbot.com/u/Orias)\
**Post date:** [June 20, 2013, 1:32pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/5 "2013-06-20T13:32:30Z")

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Awesome! Thanks for sharing!

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**Author:** ![1013](https://avatars.discourse-cdn.com/v4/letter/1/8edcca/32.png) [@1013](https://forum.lulzbot.com/u/1013)\
**Post date:** [June 20, 2013, 3:23pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/6 "2013-06-20T15:23:59Z")

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> [@Orias](#):
>
> Awesome! Thanks for sharing!

thanks to lulzbot for providing the model files, so I could do this mod.

I also have a mod that gives 12mm of extra X axis travel, and some strengthened parts that may help with the x axis belt slipping off (The green parts in the picture above)

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**Author:** ![jebba](https://avatars.discourse-cdn.com/v4/letter/j/9e8a1a/32.png) [@jebba](https://forum.lulzbot.com/u/jebba)\
**Post date:** [June 20, 2013, 8:47pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/7 "2013-06-20T20:47:55Z")

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Thanks! Looks great. 🙂

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**Author:** ![benfarmer](https://avatars.discourse-cdn.com/v4/letter/b/4bbf92/32.png) [@benfarmer](https://forum.lulzbot.com/u/benfarmer)\
**Post date:** [June 22, 2013, 2:23pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/8 "2013-06-22T14:23:50Z")

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You’re dual extruder is really impressive!

I’m trying to figure out which parts of the Gregs Wade extruder I need to print for both extruders. Can you post which parts you used? Did you use jonaskuehling\_gregs-wade-v3\_mirrored\_repaired.stl?

I’m assuming the files are in [http://devel.lulzbot.com/TAZ/printed\_parts/main\_fleet/](http://devel.lulzbot.com/TAZ/printed_parts/main_fleet/) or [http://download.lulzbot.com/TAZ/hardware/printed\_parts/](http://download.lulzbot.com/TAZ/hardware/printed_parts/)

Thanks!

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**Author:** ![1013](https://avatars.discourse-cdn.com/v4/letter/1/8edcca/32.png) [@1013](https://forum.lulzbot.com/u/1013)\
**Post date:** [June 22, 2013, 6:25pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/9 "2013-06-22T18:25:46Z")

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you need the idler and washer.  
[http://devel.lulzbot.com/TAZ/printed\_parts/main\_fleet/jonaskuehling\_gregs\_wade\_ao/extruder\_idler-washer/](http://devel.lulzbot.com/TAZ/printed_parts/main_fleet/jonaskuehling_gregs_wade_ao/extruder_idler-washer/)  
and of course the heringbone gears.  
[http://devel.lulzbot.com/TAZ/printed\_parts/main\_fleet/herringbone\_large\_gear/](http://devel.lulzbot.com/TAZ/printed_parts/main_fleet/herringbone_large_gear/)  
[http://devel.lulzbot.com/TAZ/printed\_parts/west\_fleet/herringbone\_small\_gear/](http://devel.lulzbot.com/TAZ/printed_parts/west_fleet/herringbone_small_gear/)

and I added these links to thingiverse.

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**Author:** ![benfarmer](https://avatars.discourse-cdn.com/v4/letter/b/4bbf92/32.png) [@benfarmer](https://forum.lulzbot.com/u/benfarmer)\
**Post date:** [June 22, 2013, 6:48pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/10 "2013-06-22T18:48:21Z")

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Thanks! That’s perfect.

When I load your STLs in Slic3r, they are really small - what scale should they be printed at? The ones on this forum and Thingiverse are the same tiny size.

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**Author:** ![1013](https://avatars.discourse-cdn.com/v4/letter/1/8edcca/32.png) [@1013](https://forum.lulzbot.com/u/1013)\
**Post date:** [June 22, 2013, 7:06pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/11 "2013-06-22T19:06:08Z")

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scale by 25.4 they were saved as metric…I think.

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**Author:** ![Gemini64](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/gemini64/32/8_2.png) [@Gemini64](https://forum.lulzbot.com/u/Gemini64)\
**Post date:** [June 22, 2013, 7:07pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/12 "2013-06-22T19:07:35Z")

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Scale should be 100% AFAIK. Don’t know why they import tiny for you in Slic3r, here’s how the large and small gear imported in Slic3r looks like for me.

Please note that I have an AO-100 so my build platform is smaller than the TAZ (mine is 200x190mm).

 ![Slic3r_herringbonegearset.png](https://us1.discourse-cdn.com/flex020/uploads/lulzbot/original/1X/feeaa57177d897827202df5912eadee7a144d807.png)

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**Author:** ![benfarmer](https://avatars.discourse-cdn.com/v4/letter/b/4bbf92/32.png) [@benfarmer](https://forum.lulzbot.com/u/benfarmer)\
**Post date:** [June 22, 2013, 7:54pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/13 "2013-06-22T19:54:47Z")

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Here are the outside dimensions according to slicer when I scale them up 25.4 times:

TAZ\_DUAL\_EXTRUDE\_adjustment\_block\_1013 - 116x99.6x27  
JKGWT1013-v3\_Motor\_Moved\_Extruder - 109.83x59x28  
TAZ\_DUAL\_ExtruderMount\_1013 - 115x118.82x102.06

Does that look about right? I’ll post comments on the Thingiverse object after I print them.

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**Author:** ![benfarmer](https://avatars.discourse-cdn.com/v4/letter/b/4bbf92/32.png) [@benfarmer](https://forum.lulzbot.com/u/benfarmer)\
**Post date:** [June 22, 2013, 8:26pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/14 "2013-06-22T20:26:48Z")

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Here is the list of printed parts needed, as I understand it:

**From Lulzbot**  
Latch - 2x ([http://download.lulzbot.com/TAZ/hardware/printed\_parts/extruder\_latch/extruder\_latch-2.0.stl](http://download.lulzbot.com/TAZ/hardware/printed_parts/extruder_latch/extruder_latch-2.0.stl))  
Idler and Washer - 2x ([http://download.lulzbot.com/TAZ/hardware/printed\_parts/jonaskuehling\_gregs\_wade\_ao/extruder\_idler-washer/jonaskuehling\_gregs-wade-ao-v3-washer\_idler.stl](http://download.lulzbot.com/TAZ/hardware/printed_parts/jonaskuehling_gregs_wade_ao/extruder_idler-washer/jonaskuehling_gregs-wade-ao-v3-washer_idler.stl))  
Herringbone Large - 2x ([http://download.lulzbot.com/TAZ/hardware/printed\_parts/herringbone\_large\_gear/herringbone\_large\_gear-1.0.stl](http://download.lulzbot.com/TAZ/hardware/printed_parts/herringbone_large_gear/herringbone_large_gear-1.0.stl))  
Herringbone Small - 2x ([http://download.lulzbot.com/TAZ/hardware/printed\_parts/herringbone\_small\_gear/herringbone\_small\_gear-1.0.stl](http://download.lulzbot.com/TAZ/hardware/printed_parts/herringbone_small_gear/herringbone_small_gear-1.0.stl))

**From User 1013**  
Motor Moved Extruder - 2x (JKGWT1013-v3\_Motor\_Moved\_Extruder.stl - [http://www.thingiverse.com/thing:106147](http://www.thingiverse.com/thing:106147))  
Adjustment Block - 1x (TAZ\_DUAL\_EXTRUDE\_adjustment\_block\_1013.stl - [http://www.thingiverse.com/thing:106147](http://www.thingiverse.com/thing:106147))  
Extruder Mount - 1x (TAZ\_DUAL\_ExtruderMount\_1013.stl - [http://www.thingiverse.com/thing:106147](http://www.thingiverse.com/thing:106147))

Next up is to get the exact list of parts/hardware needed.

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<div class="post-metadata">

**Author:** ![benfarmer](https://avatars.discourse-cdn.com/v4/letter/b/4bbf92/32.png) [@benfarmer](https://forum.lulzbot.com/u/benfarmer)\
**Post date:** [June 25, 2013, 10:53am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/15 "2013-06-25T10:53:30Z")

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Once the Motor Moved Extruder file is updated (it’s printing in mid-air in two places; see the pictures on thingiverse) I will have all the printed parts done. I’m getting together the list of hardware needed now. Looking forward to building it!

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**Author:** ![1013](https://avatars.discourse-cdn.com/v4/letter/1/8edcca/32.png) [@1013](https://forum.lulzbot.com/u/1013)\
**Post date:** [June 25, 2013, 10:42pm UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/16 "2013-06-25T22:42:42Z")

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> [@benfarmer](#):
>
> Once the Motor Moved Extruder file is updated (it’s printing in mid-air in two places; see the pictures on thingiverse) I will have all the printed parts done. I’m getting together the list of hardware needed now. Looking forward to building it!

Just added a support version to thingiverse, and will updated the OP soon.

Thanks to lulzbot for helping with adding the support. I just copied and pasted the support from their file.

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**Author:** ![benfarmer](https://avatars.discourse-cdn.com/v4/letter/b/4bbf92/32.png) [@benfarmer](https://forum.lulzbot.com/u/benfarmer)\
**Post date:** [June 26, 2013, 11:26am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/17 "2013-06-26T11:26:24Z")

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Thanks! I’ll print it out tonight and post some pictures.

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**Author:** ![Haas08](https://avatars.discourse-cdn.com/v4/letter/h/f07891/32.png) [@Haas08](https://forum.lulzbot.com/u/Haas08)\
**Post date:** [December 3, 2013, 1:59am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/18 "2013-12-03T01:59:49Z")

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Hi All,

First post, Just paid for my TAZ, looking forward to it arriving. FedEx decided to price the cartage via “airplane” to Oz and not quantum tele-portation via the Moon and a parallel dimension, (thank Rachael, you help me out heaps!). First transport quote had me thinking Mr Obama was going to hand deliver it using Air-Force One and a motorcade…

Perhaps a silly question, but would smaller Nema motors keep the weight down on these dual head mods, or is that already the smallest one that will get the job done?

Looking forward to tinkering with me TAZ.

Andrew

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**Author:** ![piercet](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.lulzbot.com/piercet/32/12_2.png) [@piercet](https://forum.lulzbot.com/u/piercet)\
**Post date:** [December 3, 2013, 2:22am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/19 "2013-12-03T02:22:07Z")

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Ouch, yeah those quantum teleportation charges to paralell dimensions can be rough. that’s why I only ship things via quantum teleportation to perpendicular universes.

Regarding smaller Nema motors, that is definitly something that is at least being looked at. Check out this thread here for some information regarding efforts to make a smaller, lighter extruder [https://forum.lulzbot.com/t/adjustable-heat-bed-glass-mount/38/1](https://forum.lulzbot.com/t/adjustable-heat-bed-glass-mount/38/1) Specifically they are going to look at a 20mm NEMA motor instead of the current one as a possibility. My own minor contribution to that extruder design piece, I also made a belt drive variant which should be slightly lighter in theory anyways. Assuming it works and doesn’t explode and all.

I think the general plan is once the flexystruder design is tested and tweaked to perfection, they will try it in a dual extruder array and see what happens.

I’d also like to see a “2 filliaments into one budaschnozzle” modification, but the timing and retract needed for that would be scary.

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**Author:** ![Haas08](https://avatars.discourse-cdn.com/v4/letter/h/f07891/32.png) [@Haas08](https://forum.lulzbot.com/u/Haas08)\
**Post date:** [December 3, 2013, 4:33am UTC](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/20 "2013-12-03T04:33:09Z")

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Ah should have ticked ‘perpendicular universe’ option, I’ll remember for next time!

Found this re the Nema 11, he is driving 1.75 filament though. The nema 11 spec looks like they weight half what the 17’s do.

[http://www.thingiverse.com/thing:7975/#comments](http://www.thingiverse.com/thing:7975/#comments)

i’m thinking this (dual extruder) will be an early mod for me, as the parts i need to make have a fair amount of overhang, so I’m thinking ahead a bit.

Andrew

[Next page](https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142.md?page=2)
