Gcode files include:

• organic supports for the holes
• 100% infill modifier for the post

Recommended print settings:

• Material:  PLA / PETG
• Layer Height: 0.2 mm or less
• Infill % : 50+, 100% in the post
• Supports: Yes, for holes (Organic/Tree)
• Print Orientation: Default as modeled
• Brim: Optional

One of my brackets broke, so I designed a replacement.

The original looks like this:

One is used at each end to hold the blinds in the lowered position, especially on a door that swings open.