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3D

An STL at the size you want.

Scale an STL in your browser with nothing uploaded: larger or smaller by a percentage, centred and standing on the floor, then downloaded again.

By 3 min read

An STL scaled to twice its size

A model made in the wrong unit, or one you want larger or smaller, can be scaled in your browser before it goes to the slicer.

Set the scale.

Open Scale STL and drop the file; the size changes are open under More options. Set the scale in percent and press Scale it: every length is multiplied, and the size shown at the top changes with it. Undo takes it back.

If the model is a thousand times too small or too large, its unit was probably read wrong: choose its unit instead.

Centre it and stand it on the floor.

Centre it moves its middle to the centre of the plate; Stand it on the floor moves its lowest point to the plate. Split into pieces makes each separate piece a part of its own, and Join parts joins parts that share a material.

Download it again.

STL and 3MF are offered under the check, in millimetres, standing on Z, each read back and measured before you get it.

Further reading

Topics: scale stl · resize stl · scale stl online · make stl bigger · change stl size

A little less theory. A little more doing.

Try it on your own terms, with a free browser tool.

Try the tool