Tried the RN kludge.... at least I did not get it to work. You cannot tighten the plastic swage lock type sleeves tight enough. On operation the pressure drives the PEEK tubing out of the compression fit. Maybe if you have a jig that holds the 2 syringes in a fixed position so they cannot move apart it can work.
Best, BR -----Original Message----- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Daniel Anderson Sent: Monday, December 15, 2014 8:48 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Fabricating hamilton syringe coupler for LCP preparation Here's my addition to Jim Fairman's reply: You could use a pair of RN compression fittings (www.hamilton dot com part number 55751-01) and a segment of HPLC tubing. HPLC tubing within my field of view can have an inside diameter as small as 0.005 inch. hope that helps, Happy Merry, etc., Dan On 12/15/2014 11:09 AM, Thomas Cleveland wrote: > Hi all, > > I'm trying to put together some homemade syringe couplers following > the published instructions from the Caffrey group. I'm having a bit > of trouble with this part: > > "The stainless steel ferrule of the second needle is removed and > placed on the free end of the coupling needle such that the double > thumb nut is held symmetrically between the two steel ferrules" > > Has anyone done this, and if so, how did you remove the stainless > steel ferrule from the second needle in order to place it over the > first? The stainless steel ferrule appears to be firmly attached and > I'm having trouble removing it. > > Thanks, > Thomas Cleveland
