3DConnexion Space Mouse Diary #2 : Out of the box use with FreeCAD

As you’ve probably seen from my Twitter posts, I recently started my journey with the SpaceMouse. I began with the initial setup a couple of days ago, and today I’m attempting to get it working with FreeCAD. I’m sharing my thoughts in real time as I go, so you’re getting my reactions as I discover how this new technology works. Each session lasts around 30-45 minutes.

Currently, I’m still on Windows, and I noticed that a small 3Dconnexion Home window appears every time I turn on my laptop. I initially missed the “show at system startup” checkbox, so I unchecked it to prevent this pop-up.

3Dconnexion provides a knowledge base article on SpaceMouse settings for FreeCAD, but it only covers versions up to 0.21.2, and there doesn’t seem to be anything specific to FreeCAD v1 (RC) yet. Here’s the link: 3Dconnexion SpaceMouse Settings for FreeCAD.

To get started, I powered on the SpaceMouse, opened FreeCAD v1 RC2, and loaded the BIM example found on the start page to explore the settings. Surprisingly, it just worked right out of the box! I expected to need some configuration, but everything seemed to function seamlessly.


Let me tell you, it’s hard to take a first-person photo while using one hand to control the device, holding the camera, and tapping the screen! I have no idea how kids manage it so effortlessly.

For those who know me, you know I can’t stand it when things don’t work, or when instructions tell me to open some “XYZ manager” without explaining where it is or how to find it. This frustration is actually why I started my YouTube channel. But so far, the SpaceMouse has been refreshingly simple to use, although I’ll be looking at the configuration options in more detail later.

As a test I set myself a little challenge: navigating around the building, entering through a door, wandering inside, and then exiting. The out-of-the-box controls are intuitive:

  • Pull up/down to move in that direction.
  • Twist clockwise/counterclockwise to yaw.
  • Push forward/back to move forward/backward.
  • Tilt forward/back to pitch.
  • Tilt left/right to roll.

Clicking the left or right button brings up a radial menu at the cursor position with options like “views,” which I often used to reset after accidentally zooming too far away.

The sensitivity out of the box feels quite high. I found that keeping my palm elevated and gripping the device with my fingers and thumb, rather than resting it on the table like a regular mouse, offered more control. Using an armrest made the experience much more comfortable.

Overall, getting used to the SpaceMouse requires a bit of patience—something 3Dconnexion warned me about. After 20 minutes of trying to walk through the door and up the stairs to the second floor in my model, I started to get the hang of it. The stairs have a landing and switchback, and I initially struggled with turning around without accidentally tilting up, which would leave me facing a wall or losing the model entirely. With more practice and some adjustments to sensitivity, I’m sure the experience will become smoother.

One thing that I have seen on the suppliers website is for the supported software you can customize the radial menu and hook it up to, say, the part design and sketcher operations.  This is true for both the Spacemouse and the CADMouse (link below).  

https://3dconnexion.com/uk/applications/freecad-freecad/

In my next sitting I will like to explore these customizable features.

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