Dyne's LD-F1 (D-O concept) build

[Dyne]

I think I'd aim for the servo mounted in front going towards the rear a little. So that when it raised a little it'd be perpendicular to the shell. Eg: a little less than perpendicular as it started, then perpendicular, then a little more than perpendicular, and then by the time it didn't have any leverage most of the weight would be on the frame not the servo.

That's backwards of the initial diagram though. Of course, an artist doesn't have to consider nasty things like real physics

As it happens, I was placing it oriented that way for awhile, though not so far forward.

I'd have to check, but I suspect that the limited stroke length becomes a big constraint on getting enough lift. It's 50 mm on my servo, and while they have servos with more, that also increases the overall length. I havent seen much in this small size that improves on a 2:1 length to stroke ratio.

I'm almost inclined to build an axial gearbox at one of the lower pivots with some ridiculous gearing. Michael Rechtin (same channel as that DIY actuator video) recently posted a stackable brushless gearbox. I'm not sure on the exact size of his, but it'd likely have to be more compact to work

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