| High
Speed Auxiliary Mill
Spindle Plans |
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An easy to make
auxiliary high speed spindle
that will allow you to utilize
very small diameter end mills
without a high probability of
breakage. Spindle RPM's of
most home shop milling
machines are simply too slow
for end mills smaller than
around 1/16" (1.6mm).
Depending on the motor used
and the pulley ratio, speeds
of 8,000 RPM and much higher
are available. The spindle is
designed to accept 3/16" shank
diameter end mills which is
common for end mills from
1/32" to 3/16" diameter. The
spindle body is mounted in a
standard 3/4" or 7/8" R-8
cullet. The drive belt is a
standard low cost "O" ring.
The unit is adaptable to a
wide range of modifications to
suit any user. The plans set
also includes an oversize
computer grade precision lower
ball bearing, a high quality
upper ball bearing and a
bearing preload wave washer.
The plans set consists of 5
sheets of drawings, 1 sheet of
helpful notes (spindle
bearings & preload washer
included with mail order ONLY)
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"Your
drawings and
instructions are
very clear and
concise. My
background was in
aviation and
aerospace
manufacturing and I
really appreciate
prints that are
clearly
presentable." - Jim
Headberg, Headberg
Aviation
(Wellington,
Florida)
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