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You said you were interested in the arms 215 mm long. Is it the total length of the arm or part of arms coming out of the frame. Can you make a sketch and send it to me in the mail ... I want to create a model of the arm for 215 mm, to compare the weight ... at the same time, if we can continue...

P. S. I looked at the attached links, my approach is that it is important that the entire structure of arms and frames must be as light as possible. Course and must be strong enough. It is better that arm vibration-free, because supplements only increase the weight.

Thanks for the compliments , just working on the design of the entire frame , I think it will be something special . At this point the weight of the entire frame is less than 200 grams . Dimensions are 550 x 550 mm . As for the engine mount to arms , it's something unique for now . The whole...

Thank you for your response. Really useful advice. How did you think that you can solve the vibration, which method do you think. For the arm attachments to the frame there are holes for screws.

The price is 20 Euro per arm. Shipping price is not known at this time, but I'll try not to be too expensive. It is possible to create different lengths, for which length you interested? Can you tell me, what's your opinion on this arm?

Hi guys. I am from Croatia, and this is my first post. I am a mechanical and structural engineer. Recently, I designed some arms for quadcopters. ( For my friend ) After several weeks of prototyping, on the 5 axis cnc machine, I finally managed to get a fantastic mechanical and static results...