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Animate (alpha)

Make parts or groups spin, swing, shake or travel along a path, and play it in the turntable video.

Animate makes the parts you choose move: a fan that spins, a lever that swings, a part that shakes, a part that travels along a path. The motion is a view, not an edit: the model is not changed, and a saved scene or an export sees every part where it started.

Open it

  • Right-click a part, a group in the tree, or the view with something selected, and choose Animate….
  • Or open the command search and choose Animate the selection….

Four kinds of motion

Spin
Turns round an axis (X, Y or Z, clockwise or counter) at 1 to 600 turns a minute.
Swing
Rocks to and fro round an axis by an angle of 1 to 180 degrees, in 0.2 to 20 seconds.
Noise
A shake of the position and the turn: wave, smooth random or steps. Set how far it moves (up to 50 percent of the part) and turns (up to 90 degrees) on each axis, how fast, how fine and how rough, with a seed and a dice for a new one.
Path
A trip along a circle, a figure of eight, a rounded square, a wave or a line, in the plane you choose, from 5 to 200 percent of the part’s size.

Spin and path also loop: Loop, Ping-pong or Once, with two handles on a small timeline for where in the cycle it starts and ends. A part or group can have one layer of each kind, and the layers add up. A group moves all its parts together, about the middle of the group.

Play it

Under the title bar a playbar has rewind, play and pause, the time, a scrubber over one cycle, and a speed button that steps through 0.25×, 0.5×, 1×, 2× and 4×. Space plays or pauses and Home rewinds while the window has focus. In the scene lists everything that is animated: click a row to select it, or the bin to take its animation away.

While the window is open, a pill in the view says Animate mode, Playing or Paused, with play and exit buttons. Click it to bring the window back.

What to know

  • Animations keep running after you close the window or change the selection, until you remove them or close the scene.
  • They are not saved in a scene, and an export or a saved scene puts every part back first.
  • Pressing a gizmo handle on something that is animated takes its animation away first. No gizmo shows while the window is open, and Edit mesh is off.
  • The exploded view works together with animations.
  • The turntable video plays them, each frame at its own time.

Claude can set this up for you with animate_parts: it adds, removes, lists or clears animations by part, name or group.

Pick how you run it.

In your browser

MeshOptimiser Web

Try the app in a tab. Nothing to install.

On your machine

MeshOptimiser

The full app. Windows and macOS.

Free
Free
Browser tab
Your computer
Files stay local
Files stay local
STEP to GLB
STEP to GLB
Clean-up tools
Clean-up tools
Part library
Part library
Folders and CLI
Folders and CLI
Claude
Claude
Works offline
Works offline

Web opens a sample gearbox first and needs a window 960 px wide. Best in Chrome: Safari on a Mac can lag.