Quick-Start Guide


This guide assumes you’ve already:

Pathio development moves quickly! The photos in this guide may be slightly out of date. You should still be able to find everything you need to follow the guide.


In this guide, we’ll walk through the basics of using Pathio, including:

  • Your first slice with a very basic model

    1. Importing the model

    2. Arranging the model

    3. Adjusting your slicing settings

    4. Creating G-Code and Printing

  • Slicing a more advanced project

    1. Arranging multiple models

    2. Adjusting settings

    3. Printing your project

Along the way, we’ll highlight some of what makes Pathio really powerful, even in beta!

Basic Slicing

First things first, let’s start with a very simple model. In this tutorial we’ll be using Charpy, which is a standard mechanical strength test. You can download the 3D model from Thingiverse here.

Settings and model translations can be applied to your whole project, just a group of models, or a specific model — depending on what you select in the model tree. Make sure you remember which level (project, group, or model-level) of settings you adjust while you’re tweaking settings. In the Pathio beta, all three levels can be edited even if you have only one model.

Importing Charpy (Download From Thingiverse)

When you first open Pathio you should already have an empty group ready for you to load a model into. Just click on the Import button and select your Charpy model.

Import Button

With your charpy placed on the build plate you can move, rotate, and scale it how you’d like. These arrange options are also controlled with the project → group → model hierarchy, just like slicing settings. Select your model in the project tree or in the 3D view, and try rotating, translating, and scaling it to get comfortable with the controls. You can transform your model more precisely with the buttons shown below:

Arrange Buttons

Slicing Settings

Before you start editing settings, make sure you select the Global Print Settings section. This will make it easier to change your settings later.

First, select your printer from the drop-down menu on the top right.

Select Printer

After that, adjust at least the following settings from settings menu:

  • Temperature

  • Shell Thickness

  • Infill

  • Speed

To slice your model, click the Slice button. If you’d like to print your Charpy, you can press the Save GCode button in the Preview Tab.

We picked Charpy as our test model because it illustrates 3D offsetting. Learn more in the Features Page.

Advanced Slicing

Let’s use the group system a little bit for practice. For this tutorial we’ll use a few different models:

The screw and nuts (we’re using four in our example) will need to be tougher than the purely cosmetic egg and fire truck. The screw also could benefit from a thicker shell to help with horizontal stresses.


To achieve all of these goals, we should use groups. Import the screw and nuts into one group by clicking the Import Model button; this will let us bump up the infill on all of those parts at the same time.

Next, import the egg and fire truck into a new group since they’ll be sliced with separate settings. Click the New Group button, and use the nested Import Model button to add the egg and fire truck to the new group.

Group Button Add Models to Group 2

Position all the models on your build plate, then start adjusting settings.

Slicing Settings

Adjusting slicing settings by group is quite simple. First, click on the name of the group to select it. Then, adjust the settings that need to be changed for that whole group. In our tutorial, we’ll select Group 1, and raise the Infill to 30%.

Adding Extra Infill

Now, we’ll need to adjust the shell thickness for the screw. To do this, click on the name of the model: in our example, we’ll click on Ex03_15_30x4 to select it. Then, in the Favourites tab we’ll bump up the Shell Thickness to 3.0mm.

Adding Extra Shell Thickness

Slice the whole project by clicking the Slice button. In the Preview Tab you should be able to see the differences between the different objects: Infill and Shell Thickness. You’re ready to print your project if you want.

Quirks and Bugs

Please take a moment to check out the Bugs Page to see what are known bugs, and how to deal with crashes while you’re slicing.

Getting your Hands Dirty

If you’d like to go in and manually change the configuration files that run the show in Pathio, you’re more than welcome to do so. This might be necessary while we fully flesh out the user interface; in the build you’re using some of the settings may not be available through the regular app.

You can find all the information you need to start editing your configuration files in the Configuration Guide.