I wanted my Mobius camera to pan/tilt with my head tracker, just like my FPV camera. So I picked up this mount from HK:
For pan, I got this 180 degree metal gear analog servo. For tilt, I got this standard metal gear analog servo. The servos run about $5 each and the mount is about $5, so all up, the kit cost $20 or so with shipping. I ordered an extra couple of servos just on principle. The 180 degree servo works correctly, unlike the FatShark pan/tilt mount servo, which requires a "servo stretcher" to achieve full 180 degree rotation. Because of the stress that's likely to be on this mount, I wouldn't think that nylon gear servos would last long.
I had to do some custom work to figure out how to mount the Mobius and the FPV camera at the same time. I used balsa and thick CA with accelerator to do the prototyping. I normally would have used hot glue, but I was concerned about the weight. This was my first time working with thick CA and accelerator, and I was really pleased with how well it worked.
The servo linkage in the photo is not the one that came with the kit. The kit comes with an adjustable ball linkage, but I didn't like that the balls were held on with tiny screws. I just didn't trust those screws not to come loose in flight. I swapped out the linkage for a push rod with screw clevis. This also made adjusting the length of the linkage easier. It took quite a lot of fiddling around to find the optimal geometry for the linkage. I ended up moving the servo to the front of the mount instead of the intended location in the back because that gave me more upwards travel. My ability to look down is limited by the nose of the plane, whereas I need to be able to look up so as to look into turns while the plane is banked over.
I went through many different prototype attempts to figure out how to mount the FPV camera, but ultimately what worked best was also the simplest: foam tape backed up with electrical tape.
It remains to be seen how well this will work in flight. It has a relatively substantial frontal area, and the whole thing is just hanging off of the drive gear of the pan servo, with no reinforcement or stabilization. I hope that my choice of metal gear servos will keep it from falling apart on the first hard landing... we'll see. It can't be any worse than the FatShark pan/tilt mount, with its nylon servos. And at least I'll only pay $5 to replace these servos if/when they break.
For pan, I got this 180 degree metal gear analog servo. For tilt, I got this standard metal gear analog servo. The servos run about $5 each and the mount is about $5, so all up, the kit cost $20 or so with shipping. I ordered an extra couple of servos just on principle. The 180 degree servo works correctly, unlike the FatShark pan/tilt mount servo, which requires a "servo stretcher" to achieve full 180 degree rotation. Because of the stress that's likely to be on this mount, I wouldn't think that nylon gear servos would last long.
I had to do some custom work to figure out how to mount the Mobius and the FPV camera at the same time. I used balsa and thick CA with accelerator to do the prototyping. I normally would have used hot glue, but I was concerned about the weight. This was my first time working with thick CA and accelerator, and I was really pleased with how well it worked.
The servo linkage in the photo is not the one that came with the kit. The kit comes with an adjustable ball linkage, but I didn't like that the balls were held on with tiny screws. I just didn't trust those screws not to come loose in flight. I swapped out the linkage for a push rod with screw clevis. This also made adjusting the length of the linkage easier. It took quite a lot of fiddling around to find the optimal geometry for the linkage. I ended up moving the servo to the front of the mount instead of the intended location in the back because that gave me more upwards travel. My ability to look down is limited by the nose of the plane, whereas I need to be able to look up so as to look into turns while the plane is banked over.
I went through many different prototype attempts to figure out how to mount the FPV camera, but ultimately what worked best was also the simplest: foam tape backed up with electrical tape.
It remains to be seen how well this will work in flight. It has a relatively substantial frontal area, and the whole thing is just hanging off of the drive gear of the pan servo, with no reinforcement or stabilization. I hope that my choice of metal gear servos will keep it from falling apart on the first hard landing... we'll see. It can't be any worse than the FatShark pan/tilt mount, with its nylon servos. And at least I'll only pay $5 to replace these servos if/when they break.
