If you’ve used a K40 laser cutter, then you probably know that it’s quite difficult to position the laser for a cut. This leads to you often wasting material around the edges of a cut, where you could have positioned the laser closer, or positioning it too close to the edge and causing the cut to overrun. In this video, I’ll show you how to add a small red dot laser pointer onto the head, which is mounted onto a 3D printed bracket and is powered using the existing power supply.
Make sure that you turn off and unplug your K40 laser cutter before working on it and allow the machine to stand for 10 minutes before working on it. While this addition is made to the low voltage DC side of the supply, there is always a risk in working in the open electrical compartment with the power still on.
Here’s a step by step written guide along with the laser cutting files for the three different head brackets – https://the-diy-life.com/how-to-add-a-red-dot-pointer-to-a-k40-laser-cutter/
Guide to the radial fan air assist modification – https://the-diy-life.com/how-to-add-a-radial-fan-air-assist-system-to-a-k40-laser-cutter/
Parts List and Purchase Links:
5mW Red Dot Laser Pointer – https://amzn.to/2D7MGXv
7mm Drag Chain – https://amzn.to/2W5AZHN
Latching Metal Push Button – https://amzn.to/2D4eg83
2 M3 x 15mm Hex Head Screws & Nuts – https://amzn.to/2AtFG5W
M4 x 25mm Hex Head Screw & Two Nuts – https://amzn.to/2AtFG5W
2 M4 x 15mm Hex Head Screws & Nuts – https://amzn.to/2AtFG5W
22AWG / 1.6mm Electrical Wire
K40 Laser Cutter – https://amzn.to/3eSPciW
If you’ve got any suggestions for K40 modifications, DIY projects or tutorials, let me know in the comments section below.
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laser cutter
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