QAV250 dual antenna holder

I designed this for the Spektrum dual-antenna receiver on my QAV250. This was originally designed to mount behind the Lumenier Vibration Damping Camera Plate on the second set of standoffs. However, there are a number of mounting options that will work (See pics for examples):

1. It can be mounted using the screws on top of the 2nd or 3rd set of standoffs with the screws toward the front or the rear. If you're not using the camera plate, this would be your best option.

2. It can be mounted using the silicone isolators from the camera plate. In this case, the best option is to screw the isolators into the standoffs. This moves the isolators a little further out then they are supposed to be, but they're silicone so it's not an issue. I plan to use the isolators to mount the camera to the quad using the 1st and 2nd set of standoffs. The benefit to this is that you can use the 4 extra lock washers under the front isolators so that the camera won't be angled slightly down. This will level it out nicely.

This was designed for 3mm or 1/8" antenna tubes. The holes are slightly out-of-round on purpose (only by .1mm). This allows for a snug fit on the antennas but they can still be easily removed for travel or storage.

5/14/15: When I first printed this in PLA, the 3mm antenna tubes fit perfect. However, when printing this out yesterday in ABS, they were way too tight. So, I enlarged the antenna holes slightly and added a spacer for the front standoffs in case you will be mounting the camera plate on it.