Polar Cloud for Prusa 3D Printers
Connect your Prusa printers to Polar Cloud with the free Polar3D Bridge, or through the Polar Cloud plugin if you already run OctoPrint. Either way, your Prusas join the same queues and classes as the rest of your printers.
Connect Your Prusa Printer
Before you start, have your Polar Cloud Username (the email you sign in with) and PIN handy. Both are in Account Settings.
Polar3D Bridge
- Download and install the free Polar3D Bridge on any Mac, Windows, or Linux computer on the same network as your printer.
- Add your printer in the Bridge and link it to your Polar Cloud account.
- Your printer appears in your Polar Cloud dashboard, ready to slice, print, and monitor.
OctoPrint plugin
For Prusa printers that already run OctoPrint.
- Install the Polar Cloud plugin from the OctoPrint plugin repository.
- Enter your Username and PIN in the plugin settings and turn the connection on.
Supported Prusa Models
All 12 models connect the same way: polar3d bridge or octoprint plugin.
- Mk2
- Mk2S
- Mk3
- Mk3S+
- Mini
- Mini+
- MK4
- MK4S
- XL
- Core One
- Core One+
- Core One L
Don't see your printer? Check every way to connect or ask us.
What You Can Do Once It's Connected
Slice in the Browser
Slice from a Chromebook, iPad, or laptop, or let Polar Print pick the settings and supports in one click.
Monitor From Anywhere
Check temperatures and progress from the web or the mobile app, and pause or cancel a failed print before it wastes filament.
Generate Models With AI
Turn a text prompt or a photo into a print-ready STL, then send it straight to your Prusa.
Run a Classroom or Fleet
Shared queues, print approval, and class rosters across every printer you own, any brand.
Your Fleet. Your Data.
Your Prusa printers connect to Polar Cloud, so your workflow doesn't hinge on any one manufacturer's cloud.
Stored in the United States
Polar Cloud is built by a US company, and your data is stored in the United States on AWS infrastructure.
Your Content Stays Yours
You own what you upload. Export your data or request a full deletion at any time.
One Account, Every Brand
A single Polar Cloud account runs every printer you own, so your Prusa printers sit right next to everything else.
Details on security, uptime, and compliance are in the Trust Center.
Prusa + Polar Cloud FAQ
- Which Prusa printers work with Polar Cloud?
- Current and recent Prusa printers, including the MK4, MK4S, Core One, XL, MINI, and MK3 family, connect through the Polar3D Bridge or the OctoPrint plugin.
- Is Polar Cloud free?
- Yes. The Hobbyist tier is free forever for single users. Schools use the Education tier for student privacy, rosters, and shared queues. See pricing.