by jakep_82, published
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This a torque meter for indoor free flight models. It's design is based largely on the Flite-Tork meter that was originally developed by Bill Gowen. This meter reads torque in inch/ounces.
To build the meter you need 1 of each printed part as well as a second collar. You will also need the following components:
2 - M3 x 20 socket head screws (mounting load cell)
3 - 1/8" stop collars (McMaster P/N 6432K17)
2 - 6-32 x 3/16" set screws
1 - 6-32 x 1-1/16" piece of threaded rod
2 - 6-32 nuts
1 - M4 fender washer (or washer of approximate 7/16" diameter)
1 - 2xAAA battery holder (McMaster P/N 7712K16)
1 - TBBSC 200g scale (Amazon)
1 - 1.75" long piece of 1/8" music wire or shaft (McMaster P/N 1257K83)
1 - Piece of music wire for hook
Optional - 1 piece of 1/4" OD Rulon J bearing sliced in half (McMaster P/N 6377K48)
See this thread for details on assembly. The second torque meter in the thread details assembly of the current version. Don built a torque meter with Rulon J bearings. If you don't want to use bearings, you'll need to get a #30 wire gauge drill bit. The holes in the enclosure with no bearings are drawn at 3mm (.118"). They need to be drilled out with the #30 bit (.1285") to create a good, low friction fit with the 1/8" shaft.
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Torque Meter by jakep_82 is licensed under the Creative Commons - Attribution license.
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- You must attribute (give credit) to the creator of this Thing.
- Remixing or Changing this Thing is allowed.
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