Re: magnet location
J Chris Johnston (James.C.Johnston@lerc.nasa.gov)
Thu, 17 Dec 1998 16:09:47 -0500
By the way, our AM 300 has the Hollow ("Zurich") base - the one with the
lip under the outside edge,, which is the base that Bruker has vibration
dampers for. Our AC 200 has the solid ("US") base. If anybody is
interested, I came up with a design for a set of new support brackets which
let us convert a set of "tire" dampers for the lipped base to the solid
one. I can supply a set of drawings if people need them. The one "gotcha"
in the whole thing is that the solid base needs to be blocked up to get the
clearances to be right. The dampers themselves can be attached with the
magnet energized but the blocks are best attached before the magnet is
assembled. I suppose that you could hoist an energized magnet enough to
remove the feet, put in the spacers and reattach the feet if you had to,
but you would need enough clearance to get the bolts in.
Chris
J. Chris Johnston
Polymers Branch, Materials Division (216)433-5029
NASA Lewis Research Center (216)977-7132(fax)
21000 Brookpark Rd MS 49-3 James.C.Johnston@lerc.nasa.gov
Cleveland, Ohio 44135
http://polly.lerc.nasa.gov/MDWeb/5150/Polymers.html
Resistance is Futile!