This is a flat snap-fit connector for 2040 V-slot aluminum extrusion profiles, designed to join two profiles side by side (or four 2020 profiles in a 2×2 layout) in a single plane.
It connects the extrusions securely without screws or metal plates, making it ideal for flat frame extensions, base reinforcements, or modular constructions.
The design fits directly into the V-slot channels with a tight friction-fit, providing alignment and support while keeping the surface clean and low-profile.
Fits 2040 V-slot or 4× 2020 profiles (2×2 grid)
Flat, low-profile connector – sits flush with the frame
Snap-fit / friction-fit into V-slot channels
Expands frame width or creates rigid plate-style assemblies
Printable flat, no supports needed
Scalable in slicer (Z-axis) to change connector thickness
Printer or CNC bases and beds
Large frame platforms
Modular structural systems
Tabletop / gantry extensions
Material: PETG or ABS (for strength), PLA for prototyping
Layer Height: 0.2 mm
Infill: 60–100 %
Supports: Not required
Orientation: Flat on bed
V-slot / OpenBuilds 2040
Compatible with stacked or grouped 2020 profiles (2×2)
Works with most standard T-slot aluminum extrusions
The author marked this model as their own original creation.