Side Lace Lock – No‑Tie Shoelace Holder for the Last Eyelet

A lightweight, ultra‑compact and efficient system designed to lock your shoelaces without tying a knot.

These side lace locks attach directly to the last eyelet of your shoe (one on each side) and guide the lace through a multi‑stage path that increases friction and keeps everything securely in place.

Perfect for running shoes, sneakers, work shoes, or anyone who wants a clean, knot‑free look.

🔧 How It Works

The lace follows a three‑step guided path:

• Central Hole
• The lace enters the main 4.1 mm hole, which keeps the lock aligned with the shoe’s eyelet.
• Upper Hole + Grip Surface
• The lace exits the central hole, re‑enters the upper hole, and passes over the textured grip area.
• This increases friction and prevents slipping.
• The lace passing over the lock also prevents the part from touching your ankle.
• Lower Slot Locking System
• The lace drops into the lower slot, where the narrow geometry locks it under tension.

The result is a stable, adjustable, knot‑free closure.

📐 Dimensions

• 20 × 11 × 1.8 mm
• Central & upper holes: 4.1 mm (fits almost all lace types, flat or round)
• Lower slot: 3.2 mm
• Thin, lightweight profile
• Textured top surface for extra grip

⚙ Print Settings

• Print time: under 10–15 minutes for two pieces (depends on printer)
• Supports: not required
• Recommended materials: PLA, PETG, TPU
• Layer height: 0.2 mm
• Infill: 20–30% (0% also works due to the thin geometry)

⭐ Features

• No‑knot lace locking
• Fits almost all lace types (4.1 mm holes)
• Ultra‑light and discreet
• No ankle contact thanks to the upper‑path design
• Prints extremely fast
• No supports needed
• Ideal for sports, running, daily use