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Subject: Re: [Homebrew_PCBs] Re: flexible shaft for minidrill as spindle

From: JanRwl@...
Date: 2004-11-24

In a message dated 11/23/2004 8:33:32 PM Central Standard Time,
stefan_trethan@... writes:

i don't think it is normal for bbs to get significantly warm?<<
What is "significant"? Turning 20,000 RPM or more, if grease-lubricated as
usual, BB's will get hotter'n [deleted]!







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