Reef Overflow tank
Created 3 days ago
Description
What it's for
A custom lid designed to drop flush into an existing toothed box. The lid features interlocking 1/4-inch side teeth that fit precisely between the box's gaps. The long side uses an asymmetrical tooth arrangement (starting with a 3/4-inch solid block and ending with 1-1/4 inches).
To accommodate standard 3D printer bed sizes (under 9 inches), the lid is split into two halves that lock together using a stepped, half-lap puzzle joint. This keeps the assembled lid flush and prevents the joint from dropping through.
Dimensions
- Overall Size: 12 7/16" × 3 7/16"
- Thickness: 1/4" (with a 1/8" half-lap at the puzzle joint)
- Main Hole: 1-1/2" diameter, placed 2-1/4" from the left edge
- Ventilation Holes: Five rows of 3/16" holes, spaced 1/2" on center.
Print notes
- Clearances: The puzzle joint has 0.2mm built-in Z-clearance and 0.4mm horizontal clearance. You should not need to modify it for standard FDM printing.
- Supports: None required. Print both halves flat on their bottom faces.
Images
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