Sometimes you need to get creative to adapt things to something that already exists. That's part of the fun of a project like this and it generates plenty of ideas for even better designs in the future. I'm sure you have picked up on similar thoughts with our 5' Falcon project.Hagoth,
Still watching and learning. Creating the mechanical movement desired in your model certainly requires some trial and error. Part of the design process. A credit to your demonstrated ability to persist and find solutions. My father in law was an airframe engineer on the F-14. He helped with maintenance issues on its innovative, at the time, swept wing mechanism.
Yeah, so am I. Work is in the way of my special interest. Or should I say my special interest is distracting me from work?Really nice tests! Eager to see a vid of those folding wings
Yeah, so am I. Work is in the way of my special interest. Or should I say my special interest is distracting me from work?
Glued the wires down with a dot of super glue to the remains of the wire leads pad last night since solder makes a very poor structural element. Seems to have worked really well. Can hardly wait till 5:30 tonight.
Thanks Wayne!Excellent Job Hagoth.
Thanks! Very pleased with how everything operates. The motion should get even better not having to bounce my fingers back and forth on manual buttons in rhythm to keep the motion constant.very smooth operation!
Great motor & actuator photographs Hagoth. Especially sharing the dual rack and pinion design. I have to stop watching this thread. Gives me too many ideas. Again, thanks for providing the past motor resource location.Success!
Took a lot longer to get everything put together than I planned. Super glue didn't stick well to the wire strip on motors. Need to figure out something else. Maybe a two part epoxy. Wired everything up and then realized I needed to take if all apart again to put it in the motor mount and the model hull. Powered it up and discovered that when the unit is in the body I need to drive the motors at 6V instead of 4.5 when they are nominally rated for 5. Still using my manual stepper driver so things move slow but in the end it worked. With the parts just dry fit together there is some backlash evident that will be eliminated when the parts are glued but the concept has been proven to work. I did get a video of the wings opening and closing but will need to edit it for posting to Youtube and then I can link to it here.
At any rate here are some pictures.
Wired up and placed in the lower hull.
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Still shots of closed and opened. First powered test.
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Second powered test with the fuselage top half in place. This is what I shot the video of. The backlash shows up when the wings close again.
(Edit - turns out the video was without the top fuselage on the model)
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Full video will be coming soon. I will probably speed up the frames since it took 5 min of button pushing to open and then close the wings with a manual stepper driver.
Thanks for sticking around to see the progress!