Grid

Width

Everything that touches becomes one channel; the wall follows the outline. Wheel: zoom · Space or middle-click: pan · F: fit · R: pen direction · Ctrl+Z: undo · right-click: erase · click an opening again: set its height.

3D preview

Board

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Settings

Model name Total height 22 mm Outer corner radius 0 mm Rounds the outside corners of the outline. 14 mm, half a cell, gives a true quarter round on a bend. Inner corner radius 0 mm Rounds the inside of a bend, so the inner wall follows the outer one and cables never hit a right angle. Both roundings only show in the Exact preview and in exports. Grip flare 0° openGrid grips Decorative profile (closed bottom)

Reference frame

Show the frame

Columns Rows

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Export

Project

Geometry: Monokini channel by Pedro Leite, after Underware 2.0 by Hands on Katie and BlackjackDuck. Licensed CC-BY-NC-SA 4.0: non-commercial use. Rendered by OpenSCAD (GPL) and BOSL2, in your browser. Print flat, grips up, no supports.

Underware channel generator for openGrid

A free tool to design custom, 3D-printable cable management channels for openGrid boards (28 mm pitch) and the Underware 2.0 collection. Instead of combining I, L, T and X pieces, you paint the shape of the run on a grid: tees, crossings, width changes and wide hubs all come out as a single part, with no joints.

How it works

Paint the channel area on the grid, 1 to 16 units wide.

Add open ends, lower notches to let a cable out, or dividers to keep cables apart.

Set the height, bend radius and grips, and check the result in 3D.

Export STL or 3MF for your slicer, or SCAD to tweak it in OpenSCAD.

FAQ

Is it free?

Yes, no account or sign-up. The model is licensed CC BY-NC-SA 4.0: non-commercial use.

Is my design uploaded anywhere?

No. Everything is computed in your browser by OpenSCAD compiled to WebAssembly, and your design stays on your device.

How do I print it?

Like a stock Underware channel: 0.4 mm nozzle, no supports, flat on the bed with the grips up. The grips snap into an openGrid board.

Where does the geometry come from?

From the Monokini channel by Pedro Leite, after Underware 2.0 by Hands on Katie and BlackjackDuck.