Does the LulzBot Mini 3 3D printer work with SimplyPrint, OctoPrint, Mainsail and Fluidd?
Each way of connecting it, what it needs, and how to set it up.
Ships Klipper; OctoPrint only on top of it.
Source
Ships with Klipper: OctoPrint only runs on top of it, through the OctoKlipper plugin
What works with SimplyPrint
Connected through Klipper (Moonraker), SimplyPrint supports most of what it offers on the LulzBot Mini 3: the camera and AI failure detection, remote printing, skipping objects, temperature and movement control and AutoPrint. Not yet in SimplyPrint through Klipper (Moonraker): download the file before the print starts.
Every SimplyPrint feature, for each way of connecting it to SimplyPrint
Connected to SimplyPrint through
SimplyPrint feature
Klipper (Moonraker)
Compatible
Monitoring
Live status and progress
Yes
Webcam
Yes1
AI failure detection
Yes1
Time left
Yes
Layer progress
Yes
Temperatures
Yes
Printing
Starting a print
Yes
Pause, resume and cancel
Yes
Skip objects
Yes
Printer control
Change temperatures
Yes
Moving with the controls
Yes
Homing
Yes
Extrude and retract
Yes
Change print speed
Yes
Fan speed
Yes
Baby stepping
Yes
Send G-code
Yes
Calibration
Change filament
Yes
Bed leveling
Yes
Z-Offset Calibration
Yes
Automation
AutoPrint
Pro
Yes
Download the file before the print starts
No2
Connected to SimplyPrint through Klipper (Moonraker)
Compatible
Monitoring
Live status and progressYes
WebcamYes1
AI failure detectionYes1
Time leftYes
Layer progressYes
TemperaturesYes
Printing
Starting a printYes
Pause, resume and cancelYes
Skip objectsYes
Printer control
Change temperaturesYes
Moving with the controlsYes
HomingYes
Extrude and retractYes
Change print speedYes
Fan speedYes
Baby steppingYes
Send G-codeYes
Calibration
Change filamentYes
Bed levelingYes
Z-Offset CalibrationYes
Automation
AutoPrint ProYes
Download the file before the print startsNo2
Works
Depends
Not supported
Needs a camera
SimplyPrint doesn't support this through this connection yet.
What slicer to use for the LulzBot Mini 3
None of the slicers in SimplyPrint's cloud has a ready-made profile for the LulzBot Mini 3, but it takes standard G-code: start from a similar printer's profile and set the bed size, height and nozzle to match.
We only list slicers you can use in the SimplyPrint cloud, so there may be others for the LulzBot Mini 3.
Cloud-Based Slicer for LulzBot Mini 3
All supported slicers - directly in your browser with SimplyPrint's online cloud slicer. No installation required. Slice your LulzBot Mini 3 models from any device, anywhere in the world!
Automatic Profile Updates: Profiles are automatically checked and fetched from the slicer GitHub repositories every day, as well as from our own open-source community-driven slicer profile database. This ensures you always have access to the latest profiles.
Note: Other slicers, such as Simplify3D, ideaMaker, SuperSlicer and KISSlicer, aren't in our cloud, so we don't track their profiles. They may still work well with your LulzBot Mini 3: check the slicer's own documentation or forums for a profile. You can also contribute profiles to our open-source slicer profile database on GitHub.
The app for the LulzBot Mini 3
SimplyPrint works as the LulzBot Mini 3's app: on your phone and in any browser, with a slicer in the cloud.
There's no plate swapper or auto-ejection kit for the LulzBot Mini 3 in SimplyPrint yet, but AutoPrint can still keep it printing: once the plate is clear, it starts the next job from your queue.
Ways to automate it
Your own ejection G-codeWrite the routine that clears your plate, and AutoPrint runs it after every print.
LulzBot Mini 3 specifications: bed size, print height and more
Its size, temperatures, multi-material and how it connects, from the maker and our own research.
Size
Build volume
180 x 180 x 180 mm
Bed type
Square
Bed size
180 x 180 mm
Max print height
180 mm
Printing
Max extruder temperature
290 °C
Has heated bed
Yes
Max bed temperature
100 °C
Number of nozzles
1
Direct drive
Yes
Probing tool / Auto Bed Leveling
Yes
Filament width
1.75 mm
Connecting
Supports serial printing
Unknown
Shipped firmware
Klipper
Files and slicing
Supported file formats
G-code (.gcode, .gco, .g)
The printer
Printer manufacturer / brand
LulzBot
Printer model name
Mini 3
Made by a company from
USA
Disclaimer:
We strive to keep this information as current and accurate as possible, but cannot guarantee its completeness or reliability. Our data is based on user submissions and manufacturer references.
What filament can the LulzBot Mini 3 print?
Filament compatibility for the LulzBot Mini 3: the materials it can handle, judged from its hotend, bed, chamber and enclosure.
Filament
Suitability
Notes
PLA
Great
The easiest filament to print. Works on almost any printer; a heated bed helps adhesion but is not required.
PETG
Great
Comfortably in range (PETG likes a ~230-250C hotend and a ~70-85C bed).
TPU & flexibles
Great
The direct-drive extruder feeds flexible filament well. Print slowly for clean results.
ABS & ASA
With care
The bed is hot enough, but ABS and ASA warp without an enclosure, which is strongly recommended for clean prints.
Nylon (PA)
With care
Possible with care - an enclosure and very dry filament are essential.
Polycarbonate (PC)
With care
On the edge - PC really wants an enclosed, hot chamber to avoid warping.
Carbon-fiber & glass-filled
With care
Possible if you fit a hardened or wear-resistant nozzle - the abrasive fibers quickly wear a stock brass nozzle.
Tip: this is a general guide from the printer's specs - always check your filament's recommended settings. With SimplyPrint you can save a profile for each spool and track exactly what filament you have in stock.
Compare the LulzBot Mini 3 with similar printers
Printers from the same maker, of a similar size, printing the same engineering materials or multi-material like it, that you can buy today. Compare up to four side by side, with their specs and how each connects.
Who makes the LulzBot Mini 3, and how open LulzBot leaves you: whether its printers run without its cloud, take any filament and slicer, and can be repaired. Each area is rated from public sources.
Openness: Open (5.0 of 5)
Open
Walled gardenOpen
LulzBot is an American maker of open-source hardware 3D printers. The brand, which dates itself to 2011, was built up by Aleph Objects of Loveland, Colorado; after near-closure in 2019 it was bought by FAME 3D, which runs it from Fargo, North Dakota. LulzBot publishes its printer CAD, firmware and Cura LulzBot Edition slicer, and sells the TAZ and Mini printers to schools, labs and businesses that want a machine they can repair for years.
Founded:
2011 ·
Headquarters:
Fargo, North Dakota, US ·
Ownership:
FAME 3D, LLC (Fargo Additive Manufacturing Equipment 3D), privately held, since November 2019 ·
Website:lulzbot.com
Open-source hardware and firmware, published CAD, a deep parts catalogue and no cloud. The cost is a higher price than mass-market printers.
Firmware and custom firmware ●●●●●
LulzBot publishes its Klipper, Moonraker, Mainsail and Marlin forks under the GPL-3.0 on GitHub, updated through 2026, and the Mini 3 runs Klipper. The Free Software Foundation lists the LulzBot Mini and TAZ 6 as Respects Your Freedom certified.
[7][2][13]
Local control and integrations ●●●●●
The Mini 3 runs Klipper with Mainsail in any browser and prints over Wi-Fi or from a USB drive. LulzBot maintains its own Moonraker and Mainsail forks on GitHub, Moonraker's API is documented, and LulzBot offers no printer cloud or account.
[2][18][19]
Third-party filament, slicers and parts ●●●●●
Tool heads for 1.75 and 2.85 mm filament, any filament brand, the open-source Cura LulzBot Edition (LGPL/AGPL on GitHub) and OrcaSlicer profiles for older models. Tool heads are LulzBot designs, but their sources are published too.
[3][8][17][9]
Repairs and spare parts ●●●●●
LulzBot's shop lists about 155 spare parts, including parts for the TAZ 6 and Mini 1, and the CAD for the TAZ 8 and Mini 3 (GPL-3.0) is published on GitLab.
[5][10][11]
Data and privacy ●●●●●
No account is needed to print. LulzBot's privacy notice covers only its website and says personal data is not sold or rented.
[4]
Community and documentation ●●●●●
An official forum with posts every week, public GitHub and GitLab repositories and published assembly and support documents; the community is active but small.
[12][7][9]
Pros
Open-source hardware and firmware, with CAD files published.
Spare parts still sold for printers from 2016 and earlier.
Runs locally (Klipper and Mainsail on the Mini 3), with no cloud account.
Made in the USA, with its own open-source Cura LulzBot Edition slicer.
Cons
Expensive: the TAZ 8 listed at $5,395 and the Mini 3 at $1,695 in October 2026.
The company nearly closed in 2019, laying off about 80% of staff before FAME 3D bought it.
Current models are not in OrcaSlicer's built-in list; the main slicer is LulzBot's own Cura edition.
Track record
March 2025: LulzBot introduced the TAZ 8, a large printer with swappable Galaxy Series tool heads.
[3]
July 2024: LulzBot introduced the Mini 3, running Klipper with the Mainsail web interface and Wi-Fi; its CAD is published on GitLab under the GPL-3.0.
[2][11]
November 2019: Aleph Objects sold its assets, including the LulzBot brand, to Fargo Additive Manufacturing Equipment 3D (FAME 3D) of Fargo, North Dakota.
[15]
October 2019: Aleph Objects laid off about 80% of its workforce in a cash-flow crunch while looking for new owners; it said it would keep making and servicing LulzBot printers and honour all warranties.
[14]
Researched from 19 sources, last checked October 18, 2026. Show sources
Is the LulzBot Mini 3 compatible with SimplyPrint?
Yes. You can connect the LulzBot Mini 3 to SimplyPrint via Klipper (Moonraker), then slice, queue, start and monitor prints from your browser or the mobile app.
How do I connect the LulzBot Mini 3 to SimplyPrint?
Follow our step-by-step setup guide for the LulzBot Mini 3. It shows how to connect it via Klipper (Moonraker), what you need for each, and which to pick.
What slicer should I use for the LulzBot Mini 3?
Cura, PrusaSlicer and OrcaSlicer all work with the LulzBot Mini 3, and you can run any of them in SimplyPrint's online browser slicer - no install needed, on any device.
Can I use OrcaSlicer with the LulzBot Mini 3?
Yes, but OrcaSlicer has no built-in profile for the LulzBot Mini 3 that we know of: start from a similar printer's profile and set the bed size, height and nozzle to match.
What filament can the LulzBot Mini 3 print?
Based on its specs (hotend up to 290C, heated bed up to 100C), the LulzBot Mini 3 handles PLA, PETG, or TPU & flexibles well. See the full filament guide above for ABS, nylon, PC and composites.
Does the LulzBot Mini 3 work with OctoPrint or Klipper?
The LulzBot Mini 3 works with Klipper (Mainsail and Fluidd), and SimplyPrint connects to it through them - so you get cloud access, a queue and camera monitoring on top.
What is the LulzBot Mini 3's bed size and build volume?
The LulzBot Mini 3 has a 180 x 180 mm print bed and prints up to 180 mm tall, a build volume of about 180 x 180 x 180 mm. See the full specifications table above for bed type, temperatures and more.
Can the LulzBot Mini 3 eject prints automatically?
There's no kit for it that we support yet, but SimplyPrint's AutoPrint can run your own ejection G-code, work with a robot arm through the API, or wait for you to clear the plate, and then start the next job from your queue.
Where can I buy the LulzBot Mini 3?
From LulzBot's own store, which has shops for the US. The links on this page go to those stores; some are affiliate links, so we may earn a commission at no extra cost to you.
USA
Klipper (Moonraker) 
PrusaSlicer
OrcaSlicer
BambuStudio
ElegooSlicer
CrealityPrint
Cura
Kiri:Moto
