Beach Umbrella Sand-Screw Anchor — 230 mm

Secure your beach umbrella fast, a compact, hand-driven sand anchor designed to bite into loose sand and hold firm. At 230 mm tall it fits most desktop 3D printers and accepts umbrella poles 32 mm or smaller. Printed upside-down with the T-handle on the build plate, the model requires no supports.

Key features
• Coarse helical auger on the shaft for fast, positive bite into loose sand.
• T-style handle for high leverage and easy hand-driven installation.
• Central umbrella socket accepts poles ≤ 32 mm.
• Knurled thumb-screws (hand-tightening knobs) clamp poles up to 32 mm, tool-free operation.
• Compact 230 mm height so it prints on most consumer FDM printers.

Usage
Twist the anchor into sand using the T-handle until the socket is below-grade, insert your umbrella pole, and secure with the knurled thumb-screws. The coarse helical auger displaces sand and provides positive holding while the thumb-screws allow quick, tool-free adjustments and removal.

Print notes
Orientation: Sand screw
Print upside-down with the handle on the build plate, no supports required.
Orientation: thumb-screws
Knurled thumb-screws with the thread up

Layer height: 0.20 mm
Walls / Perimeters: 4
Top and Bottom shell: 5
Slow down for curled perimeters: Ticked
Infill: Sand screw 20%, Knurled thumb-screws 50% (higher density for the knobs increases strength and grip)
Suggested materials: PETG for outdoor durability; It will print with PLA but may not last very long in the sun.
Other print settings:
Skirt Loops: 1
Brim :4mm on Sand screw only
Reduce infill Retraction: Un-ticked

Beach Umbrella Sand-Screw Anchor - 230 mm

0.2mm layer, 4 walls, 20% infill

0.2mm layer, 2 walls, 100% infill

0.2mm layer, 3 walls, 40% infill