China
Alfawise U20 at a glance
The Alfawise U20 is a 3D printer by Alfawise with a 300 x 300 x 400 mm build volume.
- Build volume
- 300 x 300 x 400 mm
- Prints well
- PLA, PETG
Connect the Alfawise U20 to SimplyPrint
Does the Alfawise U20 3D printer work with SimplyPrint, OctoPrint, Mainsail and Fluidd? Each way of connecting it, what it needs, and how to set it up.
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OctoPrint
Directly, over USB
Compatible
What you need: A Raspberry Pi running OctoPrint, plugged into the printer with a USB cable
10+ printers use SimplyPrint
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Klipper (Moonraker)
Not compatible
- Doesn't ship with Klipper: it runs Klipper after you install it in place of its own firmware, a modification
What works with SimplyPrint
Connected through OctoPrint, SimplyPrint supports everything the Alfawise U20 lets other software do: the camera and AI failure detection, remote printing, temperature and movement control and AutoPrint. 3 features depend on how it's set up: the table says what each needs.
Every SimplyPrint feature, for each way of connecting it to SimplyPrint
| Connected to SimplyPrint through | |
|---|---|
| SimplyPrint feature | OctoPrint Compatible |
| Monitoring | |
| Live status and progress | Yes |
| Webcam | Yes 1 |
| AI failure detection | Yes 1 |
| Time left | Yes |
| Layer progress | Yes |
| Temperatures | Yes |
| Printing | |
| Starting a print | Yes |
| Pause, resume and cancel | Yes |
| Skip objects | Depends 2 |
| Files | |
| Print binary G-code (.bgcode) | Depends 3 |
| 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 | Depends 4 |
Connected to SimplyPrint through OctoPrint
Compatible
Monitoring
- Live status and progress Yes
- Webcam Yes 1
- AI failure detection Yes 1
- Time left Yes
- Layer progress Yes
- Temperatures Yes
Printing
- Starting a print Yes
- Pause, resume and cancel Yes
- Skip objects Depends 2
Files
- Print binary G-code (.bgcode) Depends 3
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 Depends 4
Works Depends Not supported
- Needs a camera
- Requires the OctoPrint plugin Cancel Objects
- Requires the OctoPrint plugin BGCode
- Requires version 4.2.0 or newer of the SimplyPrint plugin
Alfawise U20 owners on SimplyPrint
10+ printers use SimplyPrint
What slicer to use for the Alfawise U20
Use Cura: it has a ready-made profile for the Alfawise U20.
Ready-made profile for the Alfawise U20
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CuraRuns in the SimplyPrint cloud
No profile for the Alfawise U20
PrusaSlicer
OrcaSlicer
BambuStudio
ElegooSlicer
CrealityPrint
Kiri:MotoWe only list slicers you can use in the SimplyPrint cloud, so there may be others for the Alfawise U20.
Cloud-Based Slicer for Alfawise U20: Use Cura Online
Use Cura and other slicers - directly in your browser with SimplyPrint's online cloud slicer. No installation required. Slice your Alfawise U20 models from any device, anywhere in the world!
Try Online Slicer NowProfiles and other slicers
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 Alfawise U20: 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 Alfawise U20
SimplyPrint works as the Alfawise U20's app: on your phone and in any browser, with a slicer in the cloud.
What you get with SimplyPrint
- An app for iPhone and Android, the same in any browser, and a slicer in the cloud.
- More than monitoring: a print queue, AI failure detection, AutoPrint and accounts for a team.
- Printers from many brands in one place, side by side.
- A European cloud: hosted in Frankfurt, Germany, under the GDPR.
Automate the Alfawise U20
There's no plate swapper or auto-ejection kit for the Alfawise U20 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-code Write the routine that clears your plate, and AutoPrint runs it after every print.
- A robot arm, or anything with an API Tell SimplyPrint the plate is clear through the API or a webhook, from a robot arm or your own system.
- Clear it by hand, keep the queue AutoPrint waits for you to mark the plate clear, then starts the next job.
AutoPrint comes with the Pro plan and up.
Alfawise U20 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 | 300 x 300 x 400 mm |
|---|---|
| Bed type | Square |
| Bed size | 300 x 300 mm |
| Max print height | 400 mm |
Printing
| Max extruder temperature | 250 °C |
|---|---|
| Has heated bed | Yes |
| Max bed temperature | 100 °C |
| Number of nozzles | 1 |
| Direct drive | No |
| Probing tool / Auto Bed Leveling | No |
| Filament width | 1.75 mm |
Connecting
| Supports serial printing | Yes |
|---|---|
| Shipped firmware | Marlin |
Files and slicing
| Supported file formats | G-code (.gcode, .gco, .g) |
|---|
The printer
| Printer manufacturer / brand | Alfawise |
|---|---|
| Printer model name | U20 |
| Made by a company from | China |
| Launched | 2018 |
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 Alfawise U20 print?
Filament compatibility for the Alfawise U20: 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 | With care | Possible, but a Bowden extruder makes flexibles harder - print slowly and prefer firmer (higher-shore) TPU. |
| 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) | Not ideal | Not recommended - PC needs very high hotend temps and an enclosed chamber. |
| 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.
Best filament for the Alfawise U20
Filaments the Alfawise U20 prints well, Alfawise's own first, then the best known.
Compare the Alfawise U20 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.
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Alfawise U20 one
300 x 300 x 400 mmLaunched 2018Connects with: OctoPrintAlso by Alfawise · Similar build volumeCompatible Compare side by side Alfawise U20 one -
Creality K1 Max
300 x 300 x 300 mmLaunched July 14, 2023Connects with: SimplyPrint Client, Klipper (Moonraker)Similar build volumeCompatible Compare side by side Creality K1 Max -
Bambu Lab H2S Combo
340 x 320 x 340 mmLaunched August 26, 2025Connects with: SimplyPrint ClientSimilar build volumeVerified by SimplyPrint Compare side by side Bambu Lab H2S Combo -
Bambu Lab H2D Combo
325 x 320 x 325 mmLaunched March 25, 2025Connects with: SimplyPrint ClientSimilar build volumeVerified by SimplyPrint Compare side by side Bambu Lab H2D Combo
Frequently asked questions
Is the Alfawise U20 compatible with SimplyPrint?
Yes. You can connect the Alfawise U20 to SimplyPrint via OctoPrint, then slice, queue, start and monitor prints from your browser or the mobile app.
How do I connect the Alfawise U20 to SimplyPrint?
Follow our step-by-step setup guide for the Alfawise U20. It shows how to connect it via OctoPrint, what you need for each, and which to pick.
What slicer should I use for the Alfawise U20?
We recommend Cura for the Alfawise U20. You can run it, and 6 other slicers, directly in SimplyPrint's online slicer - no install, on any device, with profiles for the Alfawise U20 kept up to date automatically.
Can I use OrcaSlicer with the Alfawise U20?
Yes, but OrcaSlicer has no built-in profile for the Alfawise U20 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 Alfawise U20 print?
Based on its specs (hotend up to 250C, heated bed up to 100C), the Alfawise U20 handles PLA or PETG well. See the full filament guide above for ABS, nylon, PC and composites.
Does the Alfawise U20 work with OctoPrint or Klipper?
The Alfawise U20 works with OctoPrint, and SimplyPrint connects to it through them - so you get cloud access, a queue and camera monitoring on top.
What is the Alfawise U20's bed size and build volume?
The Alfawise U20 has a 300 x 300 mm print bed and prints up to 400 mm tall, a build volume of about 300 x 300 x 400 mm. See the full specifications table above for bed type, temperatures and more.
When did the Alfawise U20 come out?
Alfawise launched the U20 in 2018.
Can the Alfawise U20 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.
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