Great - Thanks. Mark At 02:55 PM 5/4/2010, you wrote: >I'll send you a sample to experiment with. I've got your address, and >will ship it probably Wednesday. > >Dave > > >Mark Lerman wrote: > > > > > > Hi Dave, > > > > Thank you VERY MUCH for the recipe! This may indeed be the missing > > piece, though I really have no problem printing directly on the > > copper - My problem is distributing the charge on the board. I tried > > to buy some of your stuff, including the coating, a while ago, but > > you told me it was out of stock Do you have more? If so, can I buy a > > bottle to try - I can pay via Paypal at your regular site. > > > > Mark > > > > At 01:32 PM 5/4/2010, you wrote: > > >Greetings. Thought I'd throw in my 2 cents here. > > > > > >If you apply a water soluble coating to the copper, you shouldn't need > > >to modify your laser printer to be able to print directly on the copper > > >(except perhaps to compensate for the thickness of the board). > > > > > >We sell such at coating at www.laserpcb.com, and I thought I'd "open > > >source" the recipe for everyone. > > > > > >1 cup water > > >1 cup isopropyl alchohol > > >4 tablespoons Carbomer 940 > > > > > >We buy our Carbomer 940 here: > > >http://www.snowdriftfarm.com/emulsifiers.html > > <http://www.snowdriftfarm.com/emulsifiers.html> > > > > > >Blend REALLY well. I use a hand-held immersion blender as found at: > > >http://www.target.com/KitchenAid-Immersion-Blender-Onyx-Black/dp/ > B00008GSA4 > > > <http://www.target.com/KitchenAid-Immersion-Blender-Onyx-Black/dp/B00008GSA4> > > > > > >Instructions for applying the coating can be found at: > > >http://www.laserpcb.com/coating.php <http://www.laserpcb.com/coating.php> > > > > > >Hope this helps. > > > > > >Dave > > > > > > > > >------------------------------------ > > > > > >Be sure to visit the group home and check for new Links, Files, and > > Photos: > > >http://groups.yahoo.com/group/Homebrew_PCBsYahoo > > <http://groups.yahoo.com/group/Homebrew_PCBsYahoo>! Groups Links > > > > > > > > > > > > > > > > >[Non-text portions of this message have been removed] > > > >------------------------------------ > >Be sure to visit the group home and check for new Links, Files, and Photos: >http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links > > >
Message
Re: [Homebrew_PCBs] Re: direct laser PCB
2010-05-04 by Mark Lerman
Attachments
- No local attachments were found for this message.