Here's a video on how to make the modifications: I managed by just glueing a piece of floppy-disc in front of the lens and it works just fine. Removing the IR-filter is not a bad idea, but not all webcams need this. The way it's described on the Free-Track site is to remove the IR-filter from the camera and glue a piece of floppy disc in front of the lens. What you need besides the IR-pointer, is a webcam that shuts out normal light and responds only to Infra-Red (You can also get it working with orange/red LEDs and a normal camera, but it gets a lot more difficult to shut out interfering light sources from your suroundings). If you connect the pointer to a headphone, you already got a wire going from your head to the computer, so it's easy to tie both together.
You can use batteries, but to prevent annoyance when you're mid-flight and your tracking goes down, I used a conntection to a USB port on my computer. A good IR-LED (as advised on the Free-Track website), is the OSRAM SFH485P.įor the circuit you'll probably need one or more resistors and on the Free-Track website is a calculator that can help you find the right resistors and a plan on how to connect them: I recommend 80-120 degrees and it might take some time to find what you're looking for. On my test model, I used LEDs with a 60 degree angle and this is not enough. If the angle is too narrow and you turn your head, the light surface gets smaller and will disappear from your webcams view. One tip for the IR-LEDs: Make sure your LEDs have a very wide angle over which they spread the light/signal. I started looking at Free-Track and build a 3-LED IR-pointer, as is described on their website: Īnd this is a direct link to all the manuals: Įverything you need to know about different models and how to construct them can be found on the Free-Track website, including lots of pictures from every model as other users build them.Īlso there is a list of advised materials and componants:
I work with P3Dv2.3 myself and for this sim I encountered a couple of issues I will explain how to overcome, but this setup can also be used for FSX with Acceleration.
Of course there are several free programs for headtracking, using different principles, from IR-pointers and clips, to face-recognition and it would be a lot of work to test and describe everything.įor my own system I build an IR-pointer and tested this with a couple fo programs and I think I found a decent working setup and for the ones interested, I'll give a step-by-step description on how I did it.
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