Venetian blind support
thingiverse
I replaced my sagging Venetian blinds with new ones, which I designed and created using a 3D modeling program, though I'd do some things differently if I made them again. My printer settings were as follows: Printer: XYZ Davinci Pro Rafts: No Supports: No Resolution: 0.3 mm Infill: 20-25%, depending on how heavy your blinds are. I printed mine at a lower resolution, 0.1 mm.
Download Model from thingiverse
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