To mount the Led modules, I need spacers, so I made them with the laser cutter. The cad program is QCad and to vectorize, I use Inkscape.

Today I started to build the twenty grow lights. They are for my primeval code experiment. My eyes are no longer the bests for soldering work, so I do the work with a microscope. And 14 of 20 are ready for today.  

I want to build a nice integrated keypad for a project, so I'm testing a few methods to create buttons. This one seems to have potential. Two laser cut parts, one is the number keypad and the other one is glued under this one. A small mechanical button and the thing is ready.

My plant light works. The first seed starts to grow. I've done a timelaps video over the day, with one picture every 60 seconds. Playback rate is 25 frames per second. I've slightly zoomed in and I layed a green filter over the video to remove the maximum of the pink light. https://youtu.be/iFm6XJoxbwE https://youtu.be/qQiarYeKXeg

I need a Mount for my Action Cam. So I designed a simple cad in Sketchup 8. The 2d graphic has been drawn in qcad   Power on the laser cutter, et voila   Gluing the parts together   Finishing the Camera Mount   And the result  

My idea to stack the led modules works. On the one on the left, I replaced two blue led's with a white and an UV one.

So now that the Led's are here. With the laser cut mask I can place them all together with the resistors on the PCB and solder them.    

For my plant grow experiment I need a few high voltage circuits. I've got these four for 4 $ on Ebay. I think this is a good price. They have an output between 80-500 V witch is more than enough for the first experimental series.