TAZ upgrade list...current and future

The stock TAZ is a very good machine. But I also enjoy modding, and improving things so I wanted to list what improvements I have done, or have planned so others can follow along, and perhaps work on them too. feel free to add suggestions and links to your mods too.

–get max rapid speeds, without lost steps. DONE. https://forum.lulzbot.com/t/left-z-axis-motor-spins-the-down-at-the-beginning-of-a-print/115/9
–add a second extruder. DONE. https://forum.lulzbot.com/t/dual-extruders-and-the-taz/91/1 and files here: https://forum.lulzbot.com/t/taz-dual-extruder-mod-files/142/1
–Stiffen the X-axis, and keep the X belt from popping off. DONE. https://forum.lulzbot.com/t/taz-stiffened-x-carriage-mount-pieces/149/1
–increase the X axis travel by moving the smooth rods out as much as possible. DONE. https://forum.lulzbot.com/t/taz-12mm-extra-x-axis-travel-parts/150/1
–Stiffen the Z axis to remove as much backlash and hysteresis as possible. DONE. http://www.thingiverse.com/thing:117950
–Add automatic bed-probing and compensation so I never have to level the bed again. DONE. https://forum.lulzbot.com/t/auto-bed-probing-and-compensation-with-g29-development/162/1 Files here: http://www.thingiverse.com/thing:117957
–Replace all IGUS bushings to ball bearings for more accuracy. DONE. buy and install LM10UU bearings
–Make a simple enclosure to trap the heat and help prevent parts from cracking. DONE. https://forum.lulzbot.com/t/hope-you-kept-your-taz-box-simple-heated-enclosure/170/1
–Anti-slip Y belt mount. NEARLY DONE http://forum.lulzbot.com/viewtopic.php?f=16&t=213 .

–Simple spacers for the extruded aluminum to increase the X and Y travel 12mm. IDEA STAGE.
–A “cable chain” for the heated bed cables, so they do not rub on the other parts. IDEA STAGE, but something like this http://www.thingiverse.com/thing:23552
–add a place to mount a second spool of material, for the dual extrusion. IN PROCESS.
–add a loose coil holder, that fits the spool holders. IN PROCESS. based on this. http://www.thingiverse.com/thing:117627
–make a more permanent, and possibly heated chamber. IDEA STAGE, but something like this. https://forum.lulzbot.com/t/custom-taz-enclosure/172/1
–Print fan mount, that fits the dual extruders. IDEA STAGE.
–Corner supports that integrate storage for the common Allen wrenches, and knife and pliers. IDEA STAGE.
–possibly re-design the second extruder to be a bowden tube style, to reduce X carriage weight. IDEA STAGE, but similar to this http://www.thingiverse.com/thing:116880
–A mount for the power supply. IDEA STAGE
–Filament wiper and dump tank. IDEA STAGE, but something like this http://www.thingiverse.com/thing:28653

BTW, I will try to keep this thread as more of an organization and general idea scratchpad thread. I will make threads in the development area of this forum for each of the mods, and link them here, so the stock TAZ area of the forum is not filled with non stock stuff.

Some usefull links for Modding:
Lulzbot TAZ freecad development files area, where Lulzbot stores the files they are working on upgrading and modding: http://devel.lulzbot.com/TAZ/FreeCAD/
Lulzbot TAZ stock freecad parts file area. http://download.lulzbot.com/TAZ/hardware/printed_parts/FreeCAD/FCStd/
FreeCAD, so you can open and work on the above files http://www.freecadweb.org/

Great, thanks for this overview and all the files you’ve been uploading. We really appreciate it. We have printed the parts to check them out and will be setting up your leveling system as a test too.

Thanks again,



As a fellow engineer I really appreciate your work and am quite excited to incorporate the improvements to my early first run TAZ (when I get the time hah). :smiley:

Prior to my purchase of the unit I did some work in the concept stage of designing a very professional heated and vented chamber that would also have air scrubbing built in.
I’d love to collaborate!
(Hardest part of it will be making sure it will fit future mods but I already have some thoughts on the issue.


thanks again for the open design. It was one of the main reasons I pushed the company I work for to purchase a TAZ. We have had a stratasys dimension 1200 for many years now, but the yearly maintenance cost was only a few hundred less than the cost of a TAZ, and we were locked in to .010" and .013" layer thickness, and VERY expensive print cartridges of only ABS. So we stopped the maintenance contract (rarely needed it anyway) and got the TAZ instead. having the 3D design files of the TAZ available was a big plus.

We still use the dimension, since it is very easy to use and the support material system works very well, but the TAZ is slowly getting more features than the dimension, and it is much cheaper to run.

just finished the anti-slip Y belt mount.

I’ve been away for 2 weeks and am now ready to start my upgrades. Is this thread and it’s associated links still current?


I just updated some files for the bed probing. Nothing much else has changed.

there were some issues with holes too tight on some parts (stiffened X axis parts, and Z-axis anti-backlash parts) but there are discussions and fixes in those specific threads.

The eBay LM10UU bearings you purchased, you’re happy with them?

Just to add to this list - I’d also love to see a CMYK upgrade for the taz (:smiley: probably over reaching I know) but I would totally upgrade my Taz6 tomorrow if there were a kit to do it.

I’ve been following these ones: