This is a two pieces support, combine them and you are done. The max supported frame size is: Height 22cm Width 17.5 cm Length 1.8 cm You may have to scale this from 100% to 1000% in your slicer before printing.
picture frame stand 3D Models to Print - yeggi
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Free STL file Picture Frame Stand / Holder 🖼️・3D printable
7,400+ Standing Picture Frame Stock Photos, Pictures & Royalty
Free STL file Picture Frame Stand / Holder 🖼️・3D printable
Picture Frame Stand by LT_Davis
Picture Frame Stand by LT_Davis
Photo Frame best STL files for 3D printing・202 models to download
Frame – Free download 3d model Files
▷ frame stand 3d models 【 STLFinder 】
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Picture Frame Stand by LT_Davis
Folding Picture Frame Stand by David@3DOMEngineering
picture frame stand 3D Models to Print - yeggi
Acrylic Picture Frame Clear Free Standing Desktop Photo Frame