Laser Honeycomb Standoff Clip (TPU) – Prevent Backside Charring

This is a flexible TPU clip designed to snap into the honeycomb bed of a laser cutter or engraver, lifting your material slightly above the surface. Elevating the workpiece helps prevent the common “flash reflection” that can char or discolor the underside of wood, acrylic, and other materials.

I tried several existing honeycomb clip models, but the post sizes were too large for my particular honeycomb bed—so I opted to create my own. This version fits securely, prints cleanly in TPU, and provides just enough tension to hold itself in place without damaging the grid.

To reduce TPU stringing, I configured this project in Bambu Studio to print per model (sequential printing) instead of the usual per-layer approach. Your results may vary if printing on a non-Bambu machine, but the geometry is very forgiving.

The STL is oriented so the post prints parallel to the bed and uses Tree Slim supports from the build plate. Recommended settings: 0.20 mm layer height and 40% infill.

Included Files

• TPU Honeycomb Clip (8 mm post) STL – a single ready-to-print model

• 3MF file containing a full print bed of clips for batch printing

• Fusion 360 (F3D) Source File – fully parametric so you can adjust the post diameter or length to match your specific honeycomb spacing

The provided STL is configured with an 8 mm post, which fits most common honeycomb beds, but you can easily adjust this in Fusion 360 using the included source.

This simple clip has become one of my favorite quick prints for clean, consistent laser results—no more burnt backside surprises!