I think that Chris has a great idea for using ink on a Helicorder.   I =
appreciate it and will experiment with this approach.
James Allen
  ----- Original Message -----=20
  From: ChrisAtUpw@..........
  To: psn-l@.................
  Sent: Saturday, October 24, 2009 6:54 PM
  Subject: Re: TELEDYNE-GEOTECH HELICORDER


  In a message dated 24/10/2009 22:44:00 GMT Daylight Time, =
paleoartifact@......... writes:
    Perhaps Geotech might have such as Al Hrubetz suggests...but being =
as ink stylus writing went out long ago...one may have to resort to =
other (surplus...read: junk or unknown condition substitutes) brands.
  Hi James,

      It's just an idea, but I can still buy ink drawing pens for =
technical drawing. They have plastic push on ink cartridges which can be =
refilled and the ink is available in 250 ml and 23 ml bottles. The ones =
which I am familiar with are UNO and Rotring. The Rotring Isograph nibs =
are available separately from 0.1 to 1.0 mm.=20
      Note that you can also buy fine stainless steel tube in a wide =
range of sizes. I use fine piano wire for cleaning blocked pens with the =
special cleaning solution. Hot Fairy washing up liquid also breaks down =
the ink quite well.
      Note that hot wires are usually spot welded on. I would expect the =
wire to be Nichrome.

      Regards,

      Chris Chapman







I think that Chris has a great idea for using ink on a=20
Helicorder.   I appreciate it and will experiment with this=20
approach.
James Allen

  
----- Original Message ----- 
  From:=20
  ChrisAtUpw@....... 
  
To: psn-l@.............. 
  
Sent: Saturday, October 24, =
2009 6:54=20
  PM
  
Subject: Re: TELEDYNE-GEOTECH=20
  HELICORDER
  


  

  
In a message dated 24/10/2009 22:44:00 GMT Daylight Time, paleoartifact@.........=20
writes:
  
    
Perhaps Geotech might have such as Al Hrubetz suggests...but =
being as=20
    ink stylus writing went out long ago...one may have to resort to =
other=20
    (surplus...read: junk or unknown condition substitutes)=20
  brands.
  

  
Hi James,
  
 
  
    It's just an idea, but I can still buy =
ink=20
  drawing pens for technical drawing. They have plastic push on ink =
cartridges=20
  which can be refilled and the ink is available in 250 ml and 23 ml =
bottles.=20
  The ones which I am familiar with are UNO and Rotring. The Rotring =
Isograph=20
  nibs are available separately from 0.1 to 1.0 mm. 
  
    Note that you can also buy fine stainless =
steel=20
  tube in a wide range of sizes. I use fine piano wire for cleaning =
blocked pens=20
  with the special cleaning solution. Hot Fairy washing up liquid also =
breaks=20
  down the ink quite well.
  
    Note that hot wires are usually spot =
welded on. I=20
  would expect the wire to be Nichrome.
  
 
  
    Regards,
  
 
  
    Chris Chapman
  
    . =