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Old 05-12-2017, 05:50 PM   #111 (permalink)
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Why not have the servo direct drive the shutter?

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Old 05-13-2017, 11:19 AM   #112 (permalink)
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I could definitely do that. It would just take up more space and I wanted to keep it as compact as possible.
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Old 05-13-2017, 12:54 PM   #113 (permalink)
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I would say that making it firect drive will make it more conpact. But with the big flap that is irrelevant.

Your setup is more oriented towards driving 2 or more shutters with a single servo.

Also those servos will get ruined if exposed to water. For more extreme robotics ( ones that can swim on water etc) they open them up and pack it with silicone grease. I would recommend that after the trial period.
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Old 05-15-2017, 12:37 PM   #114 (permalink)
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I'm curious as to how you would orient the servo to direct drive and not increase the size of the grill block?
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Old 05-15-2017, 01:01 PM   #115 (permalink)
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I've decided to attempt to use most of the original bits for the grill block. I printed new end pieces with holes as that is necessary to give the servo arm clearance. I also glued the frame together and the blade together. The snaps would most likely be enough, but this really stiffens it up quite a bit. Just a dab bit of superglue on each joint did the trick quite nicely.



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Old 05-15-2017, 01:29 PM   #116 (permalink)
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Are you able to slide a piece of teflon (or equivalent) tubing onto the end-shafts? It should be pretty impervious to dust & road grim that grease/oil lubricants commonly attract and hold.
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Old 05-15-2017, 01:40 PM   #117 (permalink)
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I like the balanced vane blade. Would a worm gear and a small (stepper?) motor work?
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Old 05-15-2017, 02:36 PM   #118 (permalink)
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There are many options, but the simplest would be use a piece of vacuum tube as a coupling (1-2 cm) and have the servo on the side.
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Old 05-15-2017, 02:51 PM   #119 (permalink)
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Quote:
Originally Posted by teoman View Post
There are many options, but the simplest would be use a piece of vacuum tube as a coupling (1-2 cm) and have the servo on the side.
I see what you're saying, but that would require me to make the grill block longer than it currently is. Its not a bad idea at all. I just chose to go a different route.
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Old 05-15-2017, 02:52 PM   #120 (permalink)
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Quote:
Originally Posted by Old Tele man View Post
Are you able to slide a piece of teflon (or equivalent) tubing onto the end-shafts? It should be pretty impervious to dust & road grim that grease/oil lubricants commonly attract and hold.
There may be enough space to slide something very thin over them, but there isn't too much play in there. I was not planning on sleeving it. I'll see how it wears over time.

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