# Single Extruder Tool Head v2 and TAZ 3.1

**URL:** <https://forum.lulzbot.com/t/single-extruder-tool-head-v2-and-taz-3-1/1673>\
**Category:** LulzBot TAZ\
**Created:** [April 21, 2015, 5:37pm UTC](https://forum.lulzbot.com/t/single-extruder-tool-head-v2-and-taz-3-1/1673 "2015-04-21T17:37:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Montezuma](https://avatars.discourse-cdn.com/v4/letter/m/3be4f8/32.png) [@Montezuma](https://forum.lulzbot.com/u/Montezuma)\
**Post date:** [April 21, 2015, 5:37pm UTC](https://forum.lulzbot.com/t/single-extruder-tool-head-v2-and-taz-3-1/1673/1 "2015-04-21T17:37:03Z")

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I have a Lulzbot TAZ 3.1, though I am planning to print and purchase the parts to upgrade my printer with TAZ 4 parts. I saw that Lulzbot is advertizing the “LulzBot TAZ Single Extruder Tool Head v2”, but only specifies installation on TAZ 4 printers. While I am sure one could make the new tool head fit on any TAZ version printer, I am wondering what modifications(if any are necessary) are needed to make the new tool head work with the TAZ 3.1.

I saw a link to the Lulzbot Facebook page from my searches, where Lulzbot claims the v2 tool head is an upgrade for the TAZ 1-4([https://www.facebook.com/LulzBot/posts/851143804944912](https://www.facebook.com/LulzBot/posts/851143804944912)), but no specifics on how much work and what alterations(if any) would be needed. On the TAZ 3.1 part, I see two connectors, though I want to say the video I watched on the tool head installation mentioned four connectors. Would the walkthrough on the Fangtooth Tool Head([https://ohai-kit.alephobjects.com/project/taz3-hexagon-toolhead/](https://ohai-kit.alephobjects.com/project/taz3-hexagon-toolhead/)) give some idea of the installation work necessary?

My apologies if there has already been a post on this topic. I didn’t find it through the search function on this forum, nor through three different search engines.

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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:** [April 21, 2015, 6:09pm UTC](https://forum.lulzbot.com/t/single-extruder-tool-head-v2-and-taz-3-1/1673/2 "2015-04-21T18:09:06Z")

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Instructions are available here:  
[https://ohai-kit.alephobjects.com/project/taz3-hexagon-toolhead/](https://ohai-kit.alephobjects.com/project/taz3-hexagon-toolhead/)

[https://ohai-kit.alephobjects.com](https://ohai-kit.alephobjects.com) \> Add ons \> Installing Fangtooth Toolhead TAZ 3