I found the v2-areo_mount_for_taz6_no_switch model in the downloads, is that what you printed?
There’s a “newer” one on GitLab.
The only significant difference between the two is that the two mounting posts on the top are a little beefier.
If I put an M4 bolt through the back so the extruder mount sits in it’s most natural position on top of the adapter, there is still a significant gap between the top of the extruder and the mounting posts.
I tried both versions.
So no win there. Is there anyone we can tag that might have some answers? @McLeach
If I push it all the way to the top, you can see that it’s lifting in the back and riding up the three “humps” used to align to the mount.
Noted, Well that’s disappointing. I got the wiring aspect done yesterday and this upgrade is paused pending sorting out the universal adapter not working correctly for the M175.
I reached out to support inquiring about this, since I’d really like to complete this upgrade!
The response is “We have not seen any issues with this when using our own printed parts.”
I’ve asked him to view this thread and see the issues you and I have encountered.
Wow, that’s a subtle way to say “you printed it wrong.”
All three were printed on the same printer with the same filament. So, not sure that’s it. I’m going to dig up my actual Lulzbot printed adapter and compare it again an actual Lulzbot printed tool head mount and see who’s wrong.
Here’s what I perceive as the issue now. The “hole” is not centered on the adapter vs the extruder.
It’s subtle but enough to cause an issue.
Here my actual Lulzbot adapter centered but not screwed in:
STL has geometry issue in terms of centering of the hole against the ridges.

It cannot really be attached flat against the top two mounts since it will be pulled slightly downwards by the bottom two ridges being a bit offset downwards. This will leave a gap on top. Or, if you attach the top two mounts first then it will not be possible for it to sit flat aginst the grooves since it is pulled upwards slightly.
I should really just stop complaining about this, and just model myself a new one in Fusion. Step 1, learn Fusion.
I didn’t print it. I paid the $30 for the actual part the same time I bought the M175.
Zenotek,
I installed an M175v2 on an adapter and the top sat flush with the mount and the bottom had a less than 1mm gap, which would not affect printing.
This is something that has been in production for years now and is not something we have seen any issues with regarding mounting Tool Heads from our users nor plan on modifying.
If it is something that someone wished to modify to better fit their older TAZ 6 printers, you could adjust the model however you see fit.
You’ve just confirmed what we have been both saying, that the tool head does not sit flat on the adapter. To say it doesn’t affect print quality is not true and quite dismissive. How a 1mm gap is acceptable I don’t know. Not having the nozzle pointing directly down will affect the layer geometry - instead of a rectangle coming out you have a trapezoid. I get that these are older machines but it’s top of the line tool head. It deserves a properly fitting adapter.
When mounted solid with the bolt secured to the back, the nozzle does not move forward and back and is static. If it does not move, the print quality would not be affected in any way as there is no backlash or any other movement introduced into the print. This would be no different than if there was a washer between the adapter plate and Tool Head at the top, which you suggested earlier. The difference is that there is still contact being made from the Tool Head to the adapter without the need for a washer.
If there is movement when mounted on the printer, that would be a different problem all together as that would indicate that it is not sitting flush with the x-carriage.
But again, this has been in production for 5 or so years now.
If you wanted to modify the adapter plate and share your design, we would be more than happy to take a look at your design changes.
Hi Cody,
Is there a link to the Solidworks file for the Universal Adapter?
I don’t see it in the GitLab (LulzBot 3D · GitLab)
One idea I’m toying with is making the top part 5 mm taller (where the tool head attaches to the gantry) and a changing the bottom hole into an ellipse. I’d also move those 3 guide tabs down 1mm too.
All of the part files for the adapter can be found on our GitLab page linked below.
I found that, not the Universal Adapter ![]()
PP-GP0355 on that page would be the adapter for the TAZ 5/6. There should be a SLDPRT and STL for download.
I’m searching for that and not getting any results? What Sub Group might it be under?
This would be on the page I previously linked.
Thank you!
I found it






