Re: [ATM] Making glass blanks.

[Leftfieldstar@aol.com]

  The practical approach would be to purchase a kiln that has all of the 
features you are seeking. Skutt and others make programmable controllers that 
provide precision temperature control. I purchased a programmable industrial 
temperature controller and solid state relays on eBay for $65.00. An electric self 
cleaning oven can be modified to slump and anneal glass.
 
 Dominic DiLeo
 
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 In a message dated 5/13/04 7:27:23 PM Eastern Daylight Time, 
poduck@poducksworld.com writes:
 
 << What I need to do is control the cooling process over a period of time.  
The
  time needs to be over a period of days or even weeks, depending on the size
  of the piece.  It needs to cool slowly at first and then can gradually cool
  faster as the piece gets closer to room temperature.  My annealing kiln will
  be electric, so what needs to be controlled is the voltage.  I've thought
  about a high wattage dimmer switch attached via gear reduction to a small
  motor with precise gear reduction would almost be perfect, but the wattage
  is higher than 1000 watts, and the highest dimmer switch I can find is 1000
  watts.  That dimmer also costs almost $50, and I'm hoping to keep the costs
  lower than that.
   >>
  >>
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