Posted by Rick Faust on February 03, 1999 at 10:04:47:
In Reply to: Deburring plastic & nylon posted by Bill on January 01, 1999 at 11:41:02:
I would suggest if the chamfer is minimal to use a
sharp stanley blade. With your left hand hold the
gear and pull the burrs back with your index finger.
Pull the burrs toward the face of the gear and away
from the od. Slide the blade parallel to the gear
face cutting from the od toward the id. Cut the
burrs off moving in a counterclockwise direction.
If you do it right your gear will come perfectly
clean. As for gears with a large chamfer there is
hope. You will need to purchase a media blaster
machine. I suggest you use finely milled corn
cobbs that are close to the appearance of course
sand. This time deburr the burrs from the id
towards the od. This will remove the heavy burr.
Now all you have left is the burr on the chamfer.
Take the gear to the blaster and blast off the
remaining burr. Do not blast in one spot too long.
It is better to move around in a swift motion. I
like mounting a steel arbor in the blaster and
putting the gear with its aluminum or steel
bushing on top of a small steel or aluminum back
up plate. This enables me to spin the gear with
the media and produces a nice deburring job. All
that is left to do is blow off the dust!
I have 20+ years hobbing & shaping nylon gears.
Unfortunatly my shop went under due to downsizing.
If you are ever looking for help you know my
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