Homebrew PCBs

Grant,

He thought it was crazy to attempt making a dextrine coated paper at 
home. I tried it several times and agree with that: the paper is all 
shrunk up and there is now way for a hobbyst to make it flat and 
straight. Pulling out a home made dextrine paper out of a laser 
printer is a nightmare I will never forget. I admit that idea behind 
it is simple but the problem is to dry the coated paper so it looks 
like paper you and me know. Mike

--- In Homebrew_PCBs@yahoogroups.com, "grantfair2001" 
<grant.fair@s...> wrote:
> Mike - I'm not sure why your dad thought you were crazy, after all
> someone had already made the paper with dextrin. Did he say why he
> thought you would not succeed?
> 
> I didn't realize you had already had a go at this and your 
experience
> is good to know about. What kind of Dextrin did you use?
> 
> Grant
> 
> --- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...> 
wrote:
> > Grant,
> > 
> > My father is a chemical engineer who spent 40 years in paper 
> > industry. When I found out 6 moths ago that Pulsar used dextrin 
> > coated paper I knew I would have a product. I spent time and 
money 
> > making such paper trying all kinds of tricks (my father told me 
it 
> > was insane) and came to conclusion that it cannot be made at home 
but 
> > it is a great way to quickly learn how clean the laser printer. 
At 
> > that time I decided to forget about the TT and concentrated on UV 
> > exposure with excellent results, coating my own boards. Then came 
> > along the Staples paper and the laminator and we all know the 
rest of 
> > it- I became a TT convert.
> > 
> > John Kleinbauer from www.kleinbauer.com, a small CNC machine 
site, 
> > used a fantastic comparison to baking. I like that example 
because I 
> > happen to have baked breads for more than 10 years. Yesterday I 
baked 
> > the world's worst bread! I must have been tired.
> > 
> > As far as regular TT goes, the one that requires ironing, there 
are 
> > obviously two variables difficult to control (that come to mind): 
> > temperature and pressure (we know that). But keeping pressure at 
the 
> > max allows us to vary only temperature to achieve good results.
> > I had 70% success rate when ironing and I have 100% using a 
> > laminator. Yes, I live in US and yes I took a second mortgage to 
buy 
> > the laminator at Staples...  Mike