Parallel laser ray mounting system

thingiverse

I needed a way to test a prototype of an adjustable cylindrical lens that could help people with astigmatism in third-world countries. Using seven lasers allows me to test the entire range of the lens while being able to find the focal point(s). However, a professional laser box easily exceeds $150. This mount allows you to calibrate seven laser modules with a diameter of 6mm. This only works with low-power lasers due to the low melting point of PLA. When using higher power laser modules, consider using a different material. How I Designed This The hourglass shape lets the laser ray move up and down by adjusting the screws. Another section view shows the design in more detail. The width is 6mm so the laser can only move up and down. The model has been designed in Solidworks 2016 educational version. Tolerances 0.5mm Features The laser needs to be able to rotate. The laser can be adjusted up and down. The laser can be fixed in the mount. The mount can be mounted. How to calibrate lasers Step 1: Mount the laser bracket so they shine on a piece of paper normal to the laser array. Step 2: Draw seven lines with a distance of 12mm between them. (Image 1) Step 3: Rotate the laser modules so each laser is projected onto the corresponding line. (Image 1) Step 4: Adjust screws to align all rays on one line Image 1 - After rotating the lasers Image 2 - After adjusting the screws Materials used 14 M3x15mm screws 7 6mmx15mm laser diodes 5V, 200+mA power supply