Making Keyways: Difference between revisions
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=Broach= | =Broach= | ||
*Arbor press and broach is the industry standard. | *Arbor press and broach is the industry standard. | ||
*Keyway broaches are expensive - $40 for a single broach [https://www.amazon.com/HHIP-2006-1022-Inch-Keyway-Broach/dp/B00N40EO4G/ref=asc_df_B00N40EO4G/?tag=hyprod-20&linkCode=df0&hvadid=312350375896&hvpos=&hvnetw=g&hvrand=4709610837156548769&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9023315&hvtargid=pla-567472093390&psc=1] | |||
=Parting Tool= | =Parting Tool= | ||
Revision as of 00:35, 29 March 2021
Grinding Exterior Keyway
Use cutoff grindger wheel and guide, then use a dremel to clean up:
Brute force with grinder:
Summary of grinder route:
- Use cutoff grinder wheel with guide to make the sides. Use a guide clamped on the shaft. This provides the straight, vertical edge
- Use a larger grinder wheel to bore out between the sides.
Internal with Grinder
For 2" or larger: doesn't really exist.
Use a reciprocating broach, or parting tool blade if you don't have a broach
Broach
- Arbor press and broach is the industry standard.
- Keyway broaches are expensive - $40 for a single broach [1]
Parting Tool
Universal Axis
- Simply mount a needle file on a Universal Axis - based reciprocator, and let it CNC all night long to make a perfect keyway very slowly. With 10 micron step size, this should not be a problem. Working out functional parameters would be a good project for a student. Needle files: [2]
- The above is inspired by this: