Re: My first ARSG, or a Dangerous Design?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" <Dwight.Crider-at-regulusgroup-dot-com>






One possible refinement that could provide a level of confidence that the
rod could be kept in place. Continue the motor shaft drilled hole
completely through the block. cut a section of steel or brass rod of the
same diameter at lease 5/16 longer than the diameter of the tungsten rod.
Then drill a hole for the tungsten rod near one end and through the
diameter of the steel or brass.  Then center drill and tap for a set screw
from the opposite end. Insert the unit into the block aligning the holes
for the tungsten, and with the set screw at the top. Mark the center of the
tungsten rod. Press the tungsten rod through the block and unit until the
mark is at the center of the set screw hole. Insert and tighten the rod
with the set screw. If the RSG spins with no vibration, you are already
balanced and it should be ready for mounting. If there is vibration,
final balance can be obtained be holding a marker close to the ends of the
rod while running. Do not expose this to any part of your body. The end
that has the greater mass will swing toward the marker which can be
identified. A small amount of grinding (With filter mask )should achieve a
vibration free spin.

Dwight Crider