From kjliu at snf.stanford.edu Thu Jun 28 05:51:03 2001 From: kjliu at snf.stanford.edu (kjliu at snf.stanford.edu) Date: Jun 28, 2001 5:51:03 PM Subject: Problem afm2 2001-06-28 17:51:00: pin broken on head Message-ID: one of the pins on the head is broken off From griffin at plumb.Stanford.EDU Thu Jun 28 18:11:37 2001 From: griffin at plumb.Stanford.EDU (Peter Griffin) Date: Thu, 28 Jun 2001 18:11:37 -0700 (PDT) Subject: Problem afm2 2001-06-28 17:51:00: pin broken on head In-Reply-To: <200106290051.f5T0p9t22282@leland3.Stanford.EDU> Message-ID: This is because people "lever" the tip holder off the column. It causes more problems than just a break, it first bends the pins so that there is not a solid connection between the tip holder and the column, ruining the resolution for weeks before the pin eventually gets broken off. Push the tip holder straight on and ease it straight off - don't lever or rock it to get it off. Peter Griffin On 28 Jun 2001 kjliu at snf.stanford.edu wrote: > one of the pins on the head is broken off > > From kliu at molecularreflections.com Thu Jun 28 22:21:31 2001 From: kliu at molecularreflections.com (Kelvin Liu) Date: Thu, 28 Jun 2001 22:21:31 -0700 Subject: Problem afm2 2001-06-28 17:51:00: pin broken on head In-Reply-To: Message-ID: <000601c1005b$5bcefbc0$3806c43f@lapkl> Last night the pins were bent but all four were still intact. This evening one of the pins was broken off already when I got there. Kelvin Liu Staff Engineer Molecular Reflections 6330 Nancy Ridge Drive Suite 107 San Diego, CA 92121 Ph: (858) 623-0259 Fax: (858) 623-0331 kliu at molecularreflections.com -----Original Message----- From: Peter Griffin [mailto:griffin at plumb.Stanford.EDU] Sent: Thursday, June 28, 2001 6:12 PM To: kjliu at snf.stanford.edu Cc: afm2-pcs at snf.stanford.edu Subject: Re: Problem afm2 2001-06-28 17:51:00: pin broken on head This is because people "lever" the tip holder off the column. It causes more problems than just a break, it first bends the pins so that there is not a solid connection between the tip holder and the column, ruining the resolution for weeks before the pin eventually gets broken off. Push the tip holder straight on and ease it straight off - don't lever or rock it to get it off. Peter Griffin On 28 Jun 2001 kjliu at snf.stanford.edu wrote: > one of the pins on the head is broken off > >