June 12, 2026
Description
BOM: Printed with ROSA3D High Speed PLA Signal Violet
This model is a flat dual connector (4080 joiner) designed for 40×40 T-slot aluminum extrusion profiles.
It allows you to join two 4040 profiles side-by-side to form a 4080-style beam, maintaining alignment and structural strength without screws or metal brackets.
Features:
🧱 Flat dual layout — connects two 4040 profiles horizontally (forming a 4080 section)
🔩 Friction-fit connection — strong hold in grooves, easy to slide for adjustment
⚙ Precise rounded geometry to match most T-slot 4040 standards (Bosch, Item, Motedis, etc.)
🖨 No supports required, prints flat on the bed
🔧 Ideal for CNC frames, large-format 3D printers, laser machines, and enclosures
Fits tightly on most 4040 profiles; for a perfect fit, adjust tolerances by ±0.1–0.2 mm depending on your extrusion type.
License:
Creative Commons — Public Domain
10
Mateusz Tokarz
