# TAZ 5 cura 3.6.3 Wrong machine detected.

**URL:** <https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538>\
**Category:** LulzBot TAZ\
**Created:** [February 25, 2019, 7:16pm UTC](https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538 "2019-02-25T19:16:49Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![tmiller](https://avatars.discourse-cdn.com/v4/letter/t/cab0a1/32.png) [@tmiller](https://forum.lulzbot.com/u/tmiller)\
**Post date:** [February 25, 2019, 7:16pm UTC](https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538/1 "2019-02-25T19:16:49Z")

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I have been using cura 21.04 for a long time and decided to upgrade to 3.6.3 but cannot connect to my printer - getting this error in the printer control console.  
\< [10:57:30] Attempting to connect to None  
\< [10:57:31] Attempting to connect to printer with serial COM3 on baud rate 115200  
\< [10:57:36] Correct response for connection  
\< [10:57:36] Expected that MACHINE\_TYPE was LulzBot TAZ 5, but got TAZ instead  
\< [10:57:36] Wrong machine detected.  
\< [10:57:36] Closing the USB printer connection.  
\< [10:57:36] PrinterConnection.close: cannot join current thread (expected)

There is no selection available in the machine management with simply TAZ without the 5 or 6.

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**Author:** ![Brent.I](https://avatars.discourse-cdn.com/v4/letter/b/ecc23a/32.png) [@Brent.I](https://forum.lulzbot.com/u/Brent.I)\
**Post date:** [February 25, 2019, 7:26pm UTC](https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538/2 "2019-02-25T19:26:49Z")

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> [@](#):
>
> I have been using cura 21.04 for a long time and decided to upgrade to 3.6.3 but cannot connect to my printer

Okay, we have gone from the 1.0.0 branch of marlin to the 1.1.9 branch, and as such the software program is not recognizing your installed firmware. Follow these directions to get the updated firmware onto your machine.

1.) Preferences \> Configure Cura \> Allow connections to wrong machine  
2.) When adding a machine, select TAZ 5 and the corresponding tool head  
3.) Go to Settings \> Printer \> Manage Printers \> Upgrade Firmware \> Automatically update firmware

This will install marlin 1.1.9.34 with the updated naming that Cura LE is looking for.

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**Author:** ![tmiller](https://avatars.discourse-cdn.com/v4/letter/t/cab0a1/32.png) [@tmiller](https://forum.lulzbot.com/u/tmiller)\
**Post date:** [February 25, 2019, 8:11pm UTC](https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538/3 "2019-02-25T20:11:16Z")

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Thank you **VERY** much for the quick reply!  
How can I determine the tool head? I looked at my original packing slip but it doesn’t identify the tool head type.  
Thx,  
t

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**Author:** ![Brent.I](https://avatars.discourse-cdn.com/v4/letter/b/ecc23a/32.png) [@Brent.I](https://forum.lulzbot.com/u/Brent.I)\
**Post date:** [February 25, 2019, 8:34pm UTC](https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538/4 "2019-02-25T20:34:54Z")

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> [@](#):
>
> How can I determine the tool head

If you have not purchased any additional tool heads, it will be the Single Extruder tool head. If you are not sure what tool head you are using, you can post a photo or send one into [support@lulzbot.com](mailto:support@lulzbot.com) to get verification on which one you are using.

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**Author:** ![tmiller](https://avatars.discourse-cdn.com/v4/letter/t/cab0a1/32.png) [@tmiller](https://forum.lulzbot.com/u/tmiller)\
**Post date:** [February 25, 2019, 9:06pm UTC](https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538/5 "2019-02-25T21:06:23Z")

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It’s a single but here’s a pic just in case i’m missing something.  
TY,  
t  
 ![Screen Shot 02-25-19 at 01.02 PM.PNG](https://us1.discourse-cdn.com/flex020/uploads/lulzbot/original/2X/6/6f4980f6937f07c335800aefbdfa0d84c1d104f4.png)

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<div class="post-metadata">

**Author:** ![Brent.I](https://avatars.discourse-cdn.com/v4/letter/b/ecc23a/32.png) [@Brent.I](https://forum.lulzbot.com/u/Brent.I)\
**Post date:** [February 25, 2019, 9:10pm UTC](https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538/6 "2019-02-25T21:10:56Z")

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> [@](#):
>
> It’s a single

Spot on, that is the Single Extruder shipped stock with your TAZ 5! The Single Extruder option should be at the top of the list of tool heads after selecting TAZ 5.

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**Author:** ![tmiller](https://avatars.discourse-cdn.com/v4/letter/t/cab0a1/32.png) [@tmiller](https://forum.lulzbot.com/u/tmiller)\
**Post date:** [February 25, 2019, 9:30pm UTC](https://forum.lulzbot.com/t/taz-5-cura-3-6-3-wrong-machine-detected/6538/7 "2019-02-25T21:30:34Z")

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Excellent.  
As always - Great help\_ **!** \_ 😃  
Thx,  
t