Homebrew PCBs

I'm sorry - I should have said:
Denatured Alcohol
It's available at hardware stores in the painting section. 
JT

  ----- Original Message ----- 
  From: Brian Chapman 
  To: Homebrew_PCBs@yahoogroups.com 
  Sent: Thursday, May 27, 2004 1:49 PM
  Subject: [Homebrew_PCBs] Re: Epson C84 printer?


  Stefan, Jeremy, Steve,

  >> 1) The discussion here about "direct to plate" resist imaging, 
  using modified printers, applies only to single-sided plate 
  preparation, correct? <<

  > Not only, by using some aligning guide it could well be used for 
  double-sided etching. <

  I'll have to pursue this once a printer method is up and working.

  > I'm rather stuck with the direct inkjet printing and have no clue 
  what to try next. . . . Oh well, good that the TT is working fine. <

  Uh, TT? As you can tell, I'm pretty new at all this.

  > I use Think and Tinker film, and had a hell of time till I did: 1) 
  use a 10% methanol pre-spray, 2) got a good laminator 3) used a 
  carrier. As a last resort: Bubbles can be popped, and then put the 
  board back thru the laminator. I have not had bubbles or streaks or 
  rips since I did the above. <

  Jeremy, is methanol available over the counter at, say, a drug store? 
  Methanol and water mix? I'm using a Regal laminator, and when I 
  finally began using a carrier the resulting resist-covered plates 
  were improved. I've tried a light spray of water, but I'll certainly 
  give the methanol approach a try next time I etch.

  > Very interesting that Epson Durabrite inks stick to a laser 
  transparency. I'd have not thought it was possible! <

  With the C84, one of the "paper" options is transparency film. The 
  C84 Durabrite ink works extremely well with the LGN translucent paper 
  I mentioned. Also, the C84 resolution appears finer than the output 
  from my 1200 dpi HP laser. Is this possible?

  > power spray etching tank that I built (from Randy Gordon-Gilmore's 
  online plans) <

  >> Do you have a link? If so, it'd be great if you could put it in 
  the Links section. <<

  You bet. I put the URL in Links > Photoresist etching > Build a Power 
  Spray Etching System.

  > I just got this link from another list, it discusses printer 
  resolution and why 288 lpi is the right raster image resolution to 
  send to a printer with a stated resolution of 720dpi or a multiple of 
  that:
  http://www.rags-int-inc.com/PhotoTechStuff/Epson2200/ <

  I'm looking forward to exploring this link later today.

  Thank you all for the help. Much obliged.  -Brian   

  Brian Chapman/Cedar Rapids, Iowa

  ---







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