Green laser with adjustable magnetic base.

thingiverse

WARNING: A moron made a pitiful remix of it. A failure himself, he failed to understand its features, for ex. to be used with a spirit level. ! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Visible during daylight unlike red lasers. Handy for various alignment work. Paired with a good level, extends dramatically its possibilities, floor level, beam alignment, wall .... In fact, I made this some time ago because my level red laser could not be seen when building a new terrace. Use a rubber band to hold the switch if and when necessary. A sliding ring could be made to hold this switch. Green lasers eat batteries and are quite powerful. Use with caution, don't let them on all the time. Can also be used to measure deflections, see vibrations etc in 3D printers for ex. Clamp or tape if necessary. The laser (Diam 13mm, see Banggood, DX ... for the smallest green laser pointer) can be adjusted in elevation to align the magnetic base with the beam. With a hacksaw finish the slit on the top (I did it this way to get a better cylinder). The base hole is for a 25x10x3 magnet (it is closed by a thin wall that needs to be cut, print vertically, no support). Superglue it making sure it protrudes slightly. It it the surface reference, Indeed small but quite good as these magnets are well made. I managed to adjust for 1mm/m error. Secure the laser with two M2 X 8 screws Use a M3 cap screw (flat tip). to adjust the elevation. Drill and tap accordingly (2.5mm hole is there !!!). Insert a steel shim on top of the screw tip. Rotate the laser if required. PS: To avoid to print with support, hard to remove in small parts, I close holes with a thin wall (0.4mm) whenever possible. This lead to rather "clean" holes.