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LASER Mount Cube

This is the repository for the Laser Mount Cube.

The STLs and links for buying parts are only provided in APP_LIGHTSHEET_Workshop to avoid confusion.

Purpose

It adapts a laser-pointer to the to the UC2 system.

The laser-pointer is permanently switched on/off using a 3D printed clamp. It is inserted in a Thorlabs-like adapter which centers the laser on the optical axis. Using a set of rods, this adapter can be mounted inside the base-cube. Having two of these adapters makes the design very robust!

Properties

  • design is derived from the base-cube
  • the adapter for the laser can be adjusted to individual laser-pointer diameters
  • the 4 screws make centering of the laser w.r.t. the optical axis easy
  • Diode-laser, Multimode line profile, Beam
  • Peak-Wavelength: 446 nm

Laser Spectrum

The measured sepctrum from the 450nm laser pointer we used for the Light sheet setup can be found below:

Laser Power

We measured a mean power of 0.546 mW in continuous mode. We used new batteries.

Parts

3D printing parts

  • No support needed in all designs
  • Carefully remove all support structures (if applicable)

The Cube consists of the following components.

  • The Lid where the Arduino + Electronics finds its place ([LID])
  • The Cube which will be screwed to the Lid. Here all the functions (i.e. Mirrors, LED's etc.) find their place ([BASE])
  • The Laser inserts which holds the laser and adapts it to the base cube. For optimal performance use two inserts in one cube ([INSERT])
  • The Laser Clamp allows switching the laser permanently ([SWITCH])

Additional parts

  • 8× DIN912 M3×12 screws (galvanized steel)
  • 4× DIN912 M3×18 screws
  • Laserlands 450 nm laser-pointer

Assembly

  • Prepare the laser-pointer by inserting the batteries
  • Insert the 4 screws in the Laser Mount Adapter and screw them thus far so the they are not visible in the inner hole
  • Insert the Laserpointer inside the adapter
  • Fix the laser by precisely rotate all 4 screws so that the laserpointer is centered
  • Insert the rods on one side of the cube
  • Put the Laser Mount Adapter inside the cube and mount them on the rods by sliding the rods throught the holes
  • Add the lid to the cube and fix it with the 4 M3 screws
  • Done!

Tutorial with images

Don't insert batteries in the laser yet!!

  1. All parts for this model

  1. Add the button clamp to the Laser to keep the laser on in CW-mode. Put the laser inside the two Laser-inserts. Adding 2 scews to the insert makes it possible to decenter the laser in X/Y.

  1. Mount Laser inside the inserts in the cube

  1. Align the Laser in X/Y using the two screws

  1. Add the lid and the screws - Done!

Safety

Never (!) look into the laser pointer! It will damage your eye immediately!

  • ATTENTION: NEVER WATCH DIRECTLY INTO THE LASER! EYE WILL BE DAMAGED DIRECTLY
  • NEVER SWITCH ON THE LASER WITHOUT INTEDED USE
  • BEAM HAS TO GO AWAY FROM ONESELF - ALWAYS!