Align Trex 600 / 700 Foam Bladeholder Stay

thingiverse

The foam blade holder of my Align Trex 700N kept popping off when I lifted it to a table or put it in the car. The electrics didn't have this problem - maybe the oil on the boom was causing it, or possibly the CG with no fuel?? It didn't matter what caused it. This foam blade holder stay fixes the issue right away. Note: This fix is for the older Align 600 blade holder, part number AGNH60085, which also fits the 700 just fine. There's no reason why it shouldn't work on newer or wider blade holders. However, the drill template provided needs to be manually centered on the boom cutout. If you're using a different model or class, you may have to adjust the position of the stay on the boom so that it rides against the boom supports. I designed this stay for the blade holder to be placed 390mm from the front-most exposed part of the boom. Place your ruler on the boom and mark where it hits the front tailbox as zero. On my V1 700 Pro Nitro, 390mm is the rear of the middle pushrod guide. I place the blade holder directly behind the guide and the stay fits snugly. Check out this video for positioning and function: https://youtu.be/ZXFKarMl8f0 Use the provided template to drill 21/64" holes in your foam blade holder by placing it along the bottom edge of the blade holder, covering the boom cutout (see attached photo). Then, drill the foam. Note that this is designed to be drilled with a 21/64" bit, but anything close should be fine. This is foam with a lot of wiggle and give, so use caution when drilling. If you're going to use another bit, use a smaller one. A larger bit may not allow enough friction for the device to stay in place while being used. The stay is designed to swing out of the way under the boom supports and control rod to remove from the heli (see attached photos).