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Springy pen holder for MPCNC

Free STL file Springy pen holder for MPCNC, arpruss

3D model description

Allted's springy pen holder for the Mostly Printed CNC is a model of simplicity. But I didn't like the idea of having to cut zip ties to switch pens on my MPCNC. So I replaced the pen side with straps using M3 screws and nuts. The nut traps are likely to mess up a bit while printing, but just tighten up the screws to pull the nuts into position.

You can customize the maximum pen diameter (default: 18mm), and with long M3 screws, you can go as thin as you like.

There are two versions: one has shorter bridging but more 45 degree overhangs.

  • 3D model format: STL

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CC BY


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