Homebrew PCBs

actually, I was asking if your dad might know of a non-water based 
solvent for dextrine in the hope that the solvent would not wrinkle 
the paper.  I wasn't asking if he could run off a batch of paper for 
us.

I doubt that pulsar pays even $0.10 per sheet, maybe the solution is 
to find their source.

--- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...> wrote:
> Phil,
> 
> He cannot, that's the point. They use water based dextrines and 
> machine weaving the paper are the size of a small city block. The 
> pressure on the paper tape 20+ feet wode and miles long keeps it 
> straight until it makes its routs thru different drums. Temp and 
> humidity control is the key and such papers being for special 
purpose 
> are not cheap either. The only dextrine based paper that works is 
> from pulsar at $1 a sheet, then I tried couple other special 
purpose 
> papers for transfer of T-shirt images-expensive. the cheapest paper 
> for that worked for me in H200 is that Staples paper we talked 
> already about. I mean, it costs 50c for the lucky ones in US. 
> I've been baking bread since 1989 and it is after 13 years when I 
> started getting a grip on baking. What can be simpler: water, 
flower 
> and yeast. There are million books on the subject and 99% are not 
> worth paper they are printed on. I'll stick to H200 with Staples 
for 
> now (0.032"_.
> 
> Mike
> 
> 
> -- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> > Maybe your dad could help on this - is there a non-water based 
> > solvent for dextrine?  It seems like water was the problem.
> > 
> > --- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...> 
> wrote:
> > > 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