As you might know, in order to have a good microscope, you first need to have a steady base. That way, your "column-sight" eye->phone->lens->sample will not be shacky. You also need to have a source of light since photonic microscopy is based upon the fact that photons (transmitted or reflected) by your sample will excite your photosensitive cells of your retina, sending neural impulses to your brain making you "seeing" the object. That's why we designed this piece under Inkscape and used CoreIdraw to lasercut it afterward.
drawing2 This is the vectorial drawing of our base
The two small holes are fixing two threaded rods of diameter 8mm and the hole in the middle is supposed to let the light get through. But it wasn't steady enough (especially because of the lamp we were using) that's why we decided to consolidate with a second base and making a holder for the lamp.
drawing3 Vectorial drawing of the second base/light holder
As you can see the middle hole is slightly smaller than in the drawing2 fixing the lamp for once and for all ! :) For the build, drawing2 is on top of drawing3.
We had a last problem to tackle considering the light... the lamp was too powerful. That's why we thought of adding a diaphragm (the same as in a camera) to regulate the amount of light. But it didn't succeed very well and we didn't have the time to think about it so we are using a blank paper right now to have a diffused light. But here are the 3D printed diaphragm plans found on Thingiverse.com.
Time to start the sample holder !