Re: [ATM] LWT setup questions

["Nils Olof Carlin" <nilsolof.carlin@telia.com>]

Don,

> I would suggest replacing ball bearings with stiction-free flexure pivots
> and using a bowed flexure for moving the "wire". Compliant flexure type
> mechanisms will give higher precision and the more reproducible results
than
> ball bearing type mechanisms.

I know that you claim this quite frequently - however, I haven't seen any
good reason to believe that the ball bearings I use are inferior to anything
within reason. These ball bearings are of a precision needed for positioning
the R/W heads of hard-disks, and there is no play at all in them - and no
measurable stiction. Also, I have no such problem at all with my
remote-controlled tester, relying on two such sets of ball bearings.

Nils Olof

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