Wouldn’t it be great to have a camera that starts recording when something moves? If you look for “wildlife camera” or “camera trap” you can buy cameras that do just that. But first, they are quite expensive, and second, the image quality leaves a lot to be desired. But most cameras have a connection for a remote release. Can’t we combine that with a motion sensor?
I ordered some of these HC-SR501* infrared or PIR motion detectors from Aliexpress, a link is in the description. The sensitivity and the duration of the switching time can be set on the two potentiometers on the side, for example for a light that is to remain switched on for a certain time. That doesn’t help us, because we need a start impulse at the beginning and a stop impulse at the end of the recording. We need an Arduino for that. Now the remote shutter release on my Panasonic Lumix works measuring the resistance of whatever is connected to the socket.
When I tell people that I have a 3D printer, many of them ask something like „what on earth could you possibly want to print with that?“. The best answer would be: a lot! I have only recently startet this YouTube channel. To help me with that, I have already printed a number of things, three of which I would like to show you now.
If you work a lot with cameras, you usually also have lots of SD cards. Wouldn’t it be nice to have a little box where you can put them in? I’ll show you how I design such things with Sketchup, but of course you can also download the files on Fluxing.de.
First I need to know the dimensions of the SD card. Then I open the CAD program Sketchup. The free version will do. It is important that the unit of the model is set to millimeters.
First I draw a rectangle. I click into one corner and draw the rectangle. However, I do not click for the other corner, but I simply enter the desired edge lengths in millimeters and confirm this with the return key.
A 3D printed roller blinds – is that possible? Well, yeah – sort of.
I had the Fluxing logo printed on a tarp to hang it in front of my window as a roller blind. Unfortunately you can’t buy a roller blind with your own design, and I thought it was too expensive buy a suitable roller blind just to disassemble it, especially since I still had a chain from an old roller blind.
So I used Sketchup to reconstruct the mechanism. To explain that in detail takes too long here, but I wil happily make a Sketchup Tutorial if you want me to. Here are the files:
Have you ever watched snow melt? Or snails racing? Or grass growing?
Modern cameras usually have a time-lapse function, which allows actions that take hours to be compressed into a few seconds. But how do you get a smooth camera movement over this long time?
With a motorized dolly. And where do you get one? Build it yourself. It’s not difficult, it’s fast, and its ridiculously cheap. I’ll show you how I did it.
We need some kind of base plate first. I still had this sawn off end of a shelf lying around. I ordered most of the other components directly from Aliexpress in China. It takes forever for the parts to arrive, but everything is incredibly cheap. We need a motor controller, a very slow running motor and three furniture castors. I bought them locally and together they are the most expensive part in this project. Also a battery holder for eight AA-batteries. 8 times 1,5v results in 12V. In the description I will give you links to the parts.
The axle of one of the three furniture castors is drilled out. I’ll put the wheel on the motor for a trial. The motor gets connected to the controller. I first had to figure out what goes where, because everything is labeled in Chinese. in this case the motor connectors are left and the input voltage right.