Customizable M/F Shaft Coupling
by Emanresu, published
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This is useful if you want to join too shafts together. It was originally designed to couple a stepper motor to a knob through a flexible drive shaft.
Measure the two parts you want to couple.
Decide what screw size you want to use. (Default settings are for an 8-32 screw.)
Enter the information into customizer and print your model.
I recommend looking up the tap drill size and using that for the screw size.
The .scad file will also create a divot in the male shaft. The radius is the same as your screw size parameter. This is meant as the contact point for a screw, to prevent slippage.
Clean up the screw hole in the female end with the appropriate drill if need be, then thread it with the appropriate tap.
A final note, the coupling is designed to be printed in the configuration generated by the .scad file. The top, inside of the female coupling is a 45Âº cone to allow a printable overhang with no hang-offs.
I used and 8-32 nylon screw with my printed coupling and that works great. The female end is attached to the knob of a linear translation stage, which holds a sample tube. The male end is joined to the coupling of a flexible drive shaft (http://www.mcmaster.com/#flexible-drive-shafts/=mkxgvu), held in place by the drive shaft's hardware. This shaft is in turn, attached to a stepper motor, controlled using an Arduino equipped with an Adafruit motor shield. This was used as an easy, affordable way to continuously raster a photoactive sample over an excitation laser for resonance Raman spectroscopy.
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Customizable M/F Shaft Coupling by Emanresu is licensed under the Creative Commons - Attribution license.
What does this mean?
- You must attribute (give credit) to the creator of this Thing.
- Remixing or Changing this Thing is allowed.
- Commercial use is allowed.
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