bio extruder

[fractional@willmar.com]

Hello S.C. Bhattacharya,

  You mentioned that you had detailed construction  information on the
extruder presses your agency was distributing.  Picked that up off a
post in the stoves list from last fall.  I did e-mail you over a week
ago but perhaps the address was wrong or has changed since this fall.
My mail doesn't always seem to connect either, never sure what to
expect.

   Have there been any further experiments with steel types or surfacing
compounds for the screw or barrel?  From the looks of the screw I wasn't
sure how a thrust bearing was applied.

Thank You,

Alan