Cloud Slicer · Recommended Default

Slicer 5
Cloud Slicing for Most 3D Printers

Slicer 5 is the recommended default slicer in 3DPrinterOS, built on the open-source Cura engine. Upload an STL, slice it on cloud resources instead of your own computer, and send the G-code to your printer from any browser.

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Slicer 5 · bracket.stlTry it

Mode

400+ parameters in collapsible categories. Hover any parameter in 3DPrinterOS to see what it does.

MachineQualityShellInfillMaterialSpeedSupport…

Layer height

Infill

Pattern

Supports

Adhesion

✓ G-code ready to printTry it on your printer →

Interactive illustration of the slicer settings. Real slicing happens in 3DPrinterOS Cloud.

Cura

Open-source slicing engine

Simple Mode parameters

400+

Expert Mode parameters

Dual

Extrusion supported

Overview

What Is Slicer 5?

Slicer 5 is the recommended default cloud slicer in 3DPrinterOS. It runs the open-source Cura engine on cloud resources, turns STL models into G-code from any browser, and offers a 7-parameter Simple Mode and a 400+ parameter Expert Mode with dual extrusion support.

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Real screen recording: slicing a model in 3DPrinterOS Cloud

Step-by-Step

How to Slice a Model with Slicer 5

Click through the five steps. Each one shows what you will see in 3DPrinterOS.

Step 1 of 5

Upload Your Model

Add your STL file to the Files page in 3DPrinterOS. Your printer needs to be connected first. If it is not, install your 3D printer.

Step 2 of 5

Click Slice and Choose Slicer 5

Click the Slice button next to the STL file and open Slicer 5. The slicers you see depend on your organization.

Step 3 of 5

Set Up Your Slicing Settings

Your options depend on your school or organization’s rules.

Two ways to set up a slice:

Use Default Profiles: 3DPrinterOS provides default slicing profiles so you can print without diving into parameters
Adjust Settings: change parameters manually, for example to speed up the print or increase quality

If you do not see default profiles, your admin may have disabled them. Admins can also restrict manual settings to pre-defined profiles to make sure prints succeed.

Step 4 of 5

Slice or Slice & Toolpath Preview

Click Slice or Slice & Toolpath Preview. The sliced file appears in the corresponding project. With Slice & Toolpath Preview, the Toolpath Viewer opens automatically so you can inspect every layer.

Step 5 of 5

Send It to Your Printer

Find the sliced G-code on the Files page, click Print, choose your printer, then start the job right away or add it to the print queue.

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Simple or Expert

Start Simple, Go Expert When You Need It

Simple Mode: 7 basic parameters for everyday prints
Expert Mode: 400+ parameters in categories like Machine, Quality and Shell
Dual extrusion and None, Normal or Tree supports
Linked parameters update each other to keep prints stable

Cloud slicer running in a browser on a tablet

Find Your Slicer

Which 3D Printer Do You Have?

Pick your printer brand and we’ll show you the right 3DPrinterOS cloud slicer.

3DPrinterOS dashboard managing Bambu Lab, Prusa, Ultimaker and Formlabs printers in one lab — One dashboard for Bambu Lab, Prusa, Ultimaker, Formlabs and more.

Use Slicer 5

The recommended default for most standard FDM printers, built on the open-source Cura engine.

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Customer Stories

Teams That Slice in the Cloud with 3DPrinterOS

Engineers, schools and print farms use 3DPrinterOS to slice, queue and print from one platform.

Koenigsegg engineering team — **Tim Bäck**Team Leader, Koenigsegg Automotive AB

Education · Prusa

Dublin City University

230 users and 2,353 prints in a single semester on a Prusa-led fleet.

Business · Bambu Lab

Fantasy Pets runs 116 printers with a small team

A product-based print farm managing its whole Bambu Lab fleet from one interface.

Bambu Lab fleets

Bambu Lab fleet case studies

How schools and print farms run Bambu Lab fleets on 3DPrinterOS.

Rolling out Slicer 5 across a lab or a fleet?

See profiles, permissions and print queues in a 30-minute walkthrough with our team.

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Troubleshooting & FAQ

Common Slicer 5 Questions

What is Slicer 5 in 3DPrinterOS?

The slicer says “no printers available” after slicing

Check that the model sits fully on the print bed. A model positioned outside the bed fails to slice and shows “no printers available” even when your printers are connected. Use the Layout tool to move the model onto the bed, then slice again.

I get a generic “slicing error”

Failures before the actual slice starts, such as placing the model on the plate, show as a generic slicing error. A common cause is a model that already fills the whole build plate: supports and a brim add a margin that pushes it past the build area, so it slices without supports but fails with them.

I can’t see the Expert settings

Your Organization Admin can restrict access to Advanced or Expert settings. If you cannot see these tabs, they were most likely disabled to keep prints consistent across the organization.

What happened to Slicer 3 and Cloud Slicer?

Both are discontinued. Slicer 3 was an older Cura-based engine and Cloud Slicer was a legacy app. Slicer 5 is now the recommended default for most standard printers.

Should I use Slicer 5 for my Prusa, Bambu Lab, MakerBot or Formlabs printer?

Those printers have dedicated engines: Slicer for Prusa, Bambu Slicer, MakerBot Slicer and Formlabs Slicer.

Ready to Slice in the Cloud?

Connect your printer to 3DPrinterOS, upload a model and slice it with Slicer 5 in your browser. Running a lab or a fleet? Our team can help you set up profiles, permissions and queues.

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