Homebrew PCBs

What image was sent to the printer?
I need to make some QFN .5 TOO...

IM still going to try a R300, Maybe 4 passes and 4 bakes .... don't know.

To: Homebrew_PCBs@yahoogroups.com
From: mlalonde@...
Date: Wed, 4 Jan 2012 18:57:16 +0000
Subject: [Homebrew_PCBs] Solid ink printer follow-up ...














 



  


    
      
      
      HI 



just make my first test on the Xerox solid ink printer 

(collor-cube 8570n)



that was shame , noting close to 2400dip claimed by xerox

this was same pcb image print wit dell laser printer (600DPI)

and whit the Xerox for comparaison (transparency over white sheet).. 



http://www.alphatronique.com/XEROX.JPG

http://www.alphatronique.com/dell.JPG



only good thing is that black was really black



this was also image from Xerox print on paper of a QFN 0.5mm pitch 



http://www.alphatronique.com/tqfp.JPG



some trace close up ...

http://www.alphatronique.com/trace.JPG



so i still need to find a better printer once again 



Best regard 



Marc Lalonde

Alphatronique inc.



--- In Homebrew_PCBs@yahoogroups.com, "marc" <mlalonde@...> wrote:

>

> HI 

> 

> Medical film printer i see was limited to 325DPI 

> 

> it use kind of thermal film so good process but lack of resolution ..

> 

> 

> 

> I just but a new xerox solid-ink "Wax"  printer 

> 

> 1-) True 2400DPI resolution 

> 

> 2-) ink was wax so it etch and for sure developer resist to 

>     i see on this forum many user use very thin pcb on that printer

>     for direct pcb printing whit good result 

>     but my idea was use a exposed DIAZO film (microfiche)

>     then develop it ,wax will serve as developer resist 

> so result will be 2400 DPI diazo film  just like real pcb shop ;-)

> 

> 3-) this printer use full length printing head so dot registration 

>     was perfect ,it actually print image on rotating drum then

>     transfer it to the paper ,this was made a quite low temperature

>    (65DeG c) so this may not pose problem of film shrink

> 

> 4-) it quite easy to transform it in all back printer by loading 

>     Black ink block on all 4 tray ,so by manipulate the postscrip image it possible to have 4 wax dot think by pixel ,so in theory 3  time more opaque dark 

> 

> 5-)if all above fail A4 size drum will make a perfect drum for  

>    a DIY protoplotter ,since it well balanced ,have servo motor for drive it and knot it precise position 

> 

> will post result when i receive/test the printer 

> 

> if some one was interested this was in deep explanation of how this printer work , that reading tell me that it may make real nice artwork printer for pcb ..

> 

> http://www.imaging.org/ist/resources/tutorials/solid_ink.cfm

> 

> 

> Best regard 

> Marc Lalonde

> Alphatronique inc.

> 

> --- In Homebrew_PCBs@yahoogroups.com, "clausundercover" <cclaus@> wrote:

> >

> > Has anyone tried making negatives with medical imaging printers? Those that print out x-rays.

> > I was watching some kodak dryview on e-bay and they are around 250-750 and maybe there are others, and I think maybe these printers may compete with lkpf and pro products since they print on photo film.

> > Then if it works there is a question of films, chemicals, etc...

> > 

> > --- In Homebrew_PCBs@yahoogroups.com, "Robert" <oceanartscasino@> wrote:

> > >[snip]

> >

>






    
     

    
    






  






 		 	   		  

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