PSN-L Email List Message

Subject: Re: Seismograph
From: Marchal van Lare vanlare@..............
Date: Tue, 6 Jul 1999 12:25:42 -0400


Hello Meredith, Angel and others,

Thank you for your recommendations.

Yes, I use the original Lehman knife edge design, since its
quite unstable, I am gonna try to use Angel's version.

Tomorrow I will check a local machine tool store, to find out
if they have some surplus materials.

I am thinking of a 20-30 cm wide frame, to get it as stable as
possible.

I will let you know more tomorrow.

Thank you for your help.

Best regards,

Marchal van Lare





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Larry Cochrane <cochrane@..............>