Thanks for all the help you guys!Here are a few:
Very very impressive. Did you guys find any modifications to the FFM kit to be helpful, or were you able to get a 3 minute time without modding the original plans?
1. Don't put any CF Tow on the horizontal spreaders.
2. Sand down ribs as much as possible.
3. Sand down the edges on the plastic pieces (they weigh a lot more than you might expect).
This very quickly gets you closer to 3.0-3.1 grams.
Is not putting CF on the horizontal spreaders safe? Really don't want a near 3.0g helicopter that you spend so much time and effort into to snap right as you're trying to transfer the rubber from the winder to the helicopter
We were able to get to 3.0g using 1k tow on the spreader bars. I can't speak to whether it was necessary (I never tried without), however I will say that our helicopter still was bending considerably even with the tow due to the torque of the rubber band.
A couple other things about weight: we realized there was quite a bit of variation in the weight of Ziggy's parts. I'd recommend weighing all the parts and picking the lightest. Some parts varied by almost .1g
We also cut the tips of the triangles that hold the carbon fiber together on the blades. This cuts about .06g