Folding Prop setback

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JohnOSullivan
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Joined: Wed Oct 01, 2008 9:50 pm
Location: Dartmouth, Nova Scotia
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Folding Prop setback

Unread post by JohnOSullivan » Fri May 01, 2020 2:50 pm

I 3D printed motor mount, Folding Prop spinner base, spinner and tailplane mount for my new Mayfly 2m electric sailplane. Everything went fine until it came to testing the Prop Base and spinner. At about 2/3 throttle, the Prop Base disintegrated. Obviously 3D printed PLA is not strong enough for a propeller base. Lesson learned!!
Attachments
Tail mount for Mayfly
Tail mount for Mayfly
Tailplane mount for triangular fuselage and tailpane platform
Tailplane mount for triangular fuselage and tailpane platform
Prop base showing offset blades which allow closer folding of prop against fuselage.
Prop base showing offset blades which allow closer folding of prop against fuselage.
Failed Prop Base
Failed Prop Base
John
MAAC #5401 L
MACI (Ireland) IRL#26