Cessna 172 Throttle and Mixture knobs

Ah man, a few days earlier and I could have helped you, I can always ask a friend of mine but that might take a few weeks before he gets a chance to measure it.

Not conveniently no…unfortunately…

I drew up some samples from pics on the net…

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I think the ribs need to be a little bigger.

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You’re in luck, I happen to work with Cessnas almost every day.


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This forum is magic.

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You can be my @wingman1387, anytime! Thanks! :slight_smile:

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Did you pull @wingman1387 out from a hat…?

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In my experience the throttle isn’t so tapered, it’s basically a cylinder. Though I haven’t see all models.

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With the amazing stuff you’ve been building @Troll, “No, you can be mine.”
Anyway, one of the photos didn’t attach

Like @Andrew116 said it’s more cylindrical with a roundish end and a slight tapering.

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I think troll has got the tapering down to be honest. Might be a bit off but not much.

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The CAD 3D view doesn’t show the perspective. The taper is only 10%. But I think the taper perhaps should be slightly curved…? I’ll draw up a test…

This doesn’t look better to me, although I don’t have much of a comparison with the real thing.

The “customer” is satisfied. Mission complete.
Thanks for the input and help!

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Hi, Troll!
Would you be so kind to share your 3D models of Cessna knobs?
I am building DIY TPM controls and would be very happy to 3D print your knobs for my project.
Thank you!

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Sure! Happy to!
Post pics… :slight_smile:

https://www.dropbox.com/sh/3ch98u8th4yhxif/AABkSFujVjipNDxCpuSDQglea?dl=0

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Thanks for instant response! I am still waiting for controller from UK, once put everything together I’ll update the pics :slight_smile:

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