Update #1: Bug fix in the Arduino program use version 1_0a
This is a laser projector (or POV display) based on 12 mirrors for displaying any alpha numeric characters. The projector as a clock in action can be seen at https://www.youtube.com/watch?v=KLzSlPYd9MY.
Usually the adjustment of the mirrors is very difficult and time demanding for a rotated mirror based laser projector. With this 3D-printed mirror wheel every mirror can be simply adjusted with a screw. It allows to use one or more lasers but the arduino I used isn't fast enough for more than two laser. The character size could be up to 12x8 dots even I use in my program only 8x5.
For the initial adjustment the program incorporates with http://www.thingiverse.com/thing:480487 but there are of course other possibilities. The projector has a large container on top this can be filled e.g. with coins in order to give it the necessary weight otherwise it starts to "walk around"
| BOM.pdf | 133.1KB | |
| Bottom.stl | 2.1MB | |
| Button.stl | 94.6KB | |
| laserholder1a.stl | 32.0KB | |
| laserholder1b_opt.stl | 31.5KB | |
| laserholder2_opt.stl | 30.7KB | |
| Laser_arm1_opt.stl | 202.0KB | |
| Laser_arm_2_opt.stl | 21.3KB | |
| Load_container.stl | 2.2MB | |
| Load_container_bottom.stl | 2.2MB | |
| Load_container_cover.stl | 382.7KB | |
| mirror_weel.stl | 1021.9KB | |
| Motor_holder.stl | 728.6KB | |
| Pole.stl | 107.0KB | |
| POV_Display_1_0.ino | 14.4KB | |
| POV_Display_1_0a.ino | 14.4KB | |
| Sensor_cover.stl | 94.8KB | |
| Side_cover.stl | 222.9KB | |
| Switch_holder.stl | 454.0KB | |
| Wiring_Diagram_POV.pdf | 83.4KB |
