Homebrew PCBs

Hi Jim,

Thanks for the tips.  Your wire idea sounds good.

We have excellent results fixing the toner by running it through the 
re-flow oven.

Again, thanks!

Rob

On 06/06/2011 02:04 PM, Jim wrote:
>
> Rob,
> I also use a E260 to directly print to the PCB.
> I solder a small wire to the blank PCB and connect it to ground. I use a
> card stock carrier. As the PCB gets bigger (more square inches), I
> sometimes connect the PCB to an adjustable 0 to 500 volt power supply
> through a 3 to 5 meg resistor. I found the best voltage to be about +350
> volts.
> Cleaning the PCB with acetone is a must.
> Search the archives for the words "acetone fix toner" for my method of
> "fixing" the toner to the PCB without ANY heat.
> Jim KI6MZ
>
> On 6/6/2011 11:40 AM, Rob Frohne wrote:
> > Hi All,
> >
> > We are using a modified E260, but are having difficulty getting the
> > toner to consistently stick to the board, especially on larger boards
> > with large ground planes. We have found some improvement by adding
> > another larger piece of board in electrical contact with the one to
> > print, but results are still inconsistent. Do you have any hints for me
> > and my students?
> >
> > Thanks,
> >
> > Rob
> >
>
> 

-- 
Rob Frohne, Ph.D., P.E.
E.F. Cross School of Engineering
Walla Walla University
100 SW 4th Street
College Place, WA 99324
(509) 527-2075			 http://people.wallawalla.edu/~rob.frohne



[Non-text portions of this message have been removed]