4 Into 2 Track Joiner Smooth Dual Lane Merge

Take your race track to the next level with this smooth 4 into 2 track joiner, designed to merge four lanes into two while maintaining excellent vehicle flow and speed.

The gradual transition helps reduce sudden impacts and keeps cars running smoothly through the merge, making it ideal for custom race layouts, gravity runs, and booster-powered circuits.

To make printing easier on most desktop 3D printers, the model is supplied in two separate parts. Each half prints flat on the build plate with no supports required. The two sections are then aligned using the integrated dowel pins before being permanently bonded together with super glue or epoxy for a strong, seamless assembly.

Features

• Smooth 4-lane to 2-lane merge
• Compatible with most standard 1:64 scale toy car track systems
• Prints in two parts for easier printing
• Built-in alignment dowels for accurate assembly
• No supports required
• Strong, clean finished join once glued
• Optimised for PLA, PETG or ABS

Recommended Print Settings

• Layer Height: 0.20 mm
• Walls: 3–4
• Infill: 15–20% Gyroid or Grid
• Supports: None
• Print each part flat on the build plate
• Assemble using the integrated dowels and bond with CA (super glue) or epoxy

If you enjoy this model, I'd really appreciate a rating and a photo of your finished build. I'd love to see the custom tracks you create!