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Add math functions to get pitch diameter of gears / sprockets / pulleys #52

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PChild opened this issue Nov 27, 2024 · 2 comments · May be fixed by #72
Open

Add math functions to get pitch diameter of gears / sprockets / pulleys #52

PChild opened this issue Nov 27, 2024 · 2 comments · May be fixed by #72
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@Samson560915
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good first issue Good for newcomers

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@PChild
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PChild commented Nov 27, 2024

We sometimes need to know the pitch diameter of a sprocket or pulley when we're converting from rotational motion to linear motion (like in the offseason elevator).

It would be nice to have functions that return a Distance so you could do something like sprocket25Diameter(16) to get the pitch diameter of a #25 16 tooth sprocket.

Pitch diameter equations:

  • 3mm pitch pulley (in mm): 3 * teeth / pi
  • 5mm pitch pulley (in mm): 5 * teeth / pi
  • RT25 pulley (in inches): 0.25 * teeth / pi
  • #25 chain sprocket (in inches): 0.25 / sin(pi / teeth)
  • #35 chain sprocket (in inches): 0.375 / sin(pi / teeth)
  • 20DP gear (in inches): teeth / 20
  • 32DP gear (in inches): teeth / 32
@PChild PChild added the good first issue Good for newcomers label Nov 27, 2024
@jkleiber
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jkleiber commented Dec 1, 2024

@aidnem can you assign this to one of the new members?

@aidnem
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aidnem commented Dec 1, 2024

@Samson560915 I think this will be a good introduction because you can learn how we write code in our projects without having to do anything insanely complex.

@Samson560915 Samson560915 linked a pull request Dec 12, 2024 that will close this issue
Converts the teeth amount of a gear to the pitch diameter. #72
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@jkleiber jkleiber linked a pull request Dec 13, 2024 that will close this issue
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Converts the teeth amount of a gear to the pitch diameter. team401/coppercore
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@PChild @jkleiber @aidnem @Samson560915