A couple of months ago I wrote an Inkscape extension that allows users to save LYZ files that are compatible with Laser Draw (LaserDRW). Laser Draw is the software that comes with many of the cheap chinese laser cutters. The Inkscape extension makes it easier for users to get consistently scaled output. This is especially helpful when doing multiple operations on a single work piece (i.e. raster engraving, vector engraving and cutting).
I built a spring loaded platform for my K40 laser. The purpose of the platform is to allow for the use of different thicknesses of material while maintaining the correct distance to the surface of the material so the laser is always focused at the material surface. I achieve this by having springs push the platform up to a hard stop formed by a piece of angle aluminum. When an item is placed on the platform a small portion of the material is pushed under the hard stop surface. Then the springs push the material up until the top surface of the material is positioned at the laser focus height by the hard stop.
I don’t have detailed plans but I tried to give enough information in the video for someone to replicate the design if desired. Below is a list of the materials I used and the tools needed to perform the build.
If you have questions I can be contacted by e-mail at the address in the image at the bottom of the Scorch Works Home Page.
Aluminum flat bar, 1 inch x 1/8 inch x 36 inch long (Home Depot has 48 inch lengths)
Angle aluminum, 1 inch x 1/8 inch x 36 inch long (Home Depot has 48 inch lengths)
Angle aluminum, 3/4 inch x 1/8 inch x 36 inch long (Home Depot has 48 inch lengths)