Hi Voltan,
First of all, I congratulate you on a great idea and the work cleverness
that have made it work for you.. I agree, a 99% reliability rate is not
needed, just somewhat equal to Toner Transfer.
As part of my research chemist background, I find it is important to
identify and document all the details for repeatable results. The key is in
the details.
I've been following your work and am trying to repeat it. It is frustrating
when it fails and appears that the process has been duplicated. Until just
recently, the use of Brake Fluid to reduce surface tension and now the fact
3 sets of nozzles / cartridges are being used to correct coverage problems
has been published. It is very normal that some details the you just take
for granted are especially important and need to be mentioned.
These are the missed details that slow down the progress by others. After
all, it has been 4 months since your original post and no one yet has
successfully duplicated your results.
It could be similar to Toner Transfer, where apparently minor variations
have a major impact.
Again, I apologize if it appears that I am disparaging you efforts, but I am
trying to get a grasp on all the details to be able to repeat them.
Myc
On 7/24/06, Volkan Sahin <vsahin@...> wrote:
>
> I didn't understand you reliability question, if possible please
> explain a little bit more, what are your reliability criteria? Do you mean
> successful repeatability or reliable as TT :)? Please don't ask me to have
> 99% success rate.
>
> I could be able print on pcb without any failure, it may be because of the
> printer that I am using. The main thing is, board needs to be clean, free of
> finger print, dust, and grease like required in TT process and you need to
> use as many colors as possible to decrease the effects of clogged nozzle. I
> am always using 3 colors. I didn't do 100 pcbs with this technique but I can
> say that, at least for me, success rate is much higher than TT. If someone
> plans to do double layer PCB with CNC drill or applying solder resist then
> there is no chance to do it with TT, either he needs to use photo-resist
> /dry-film or direct inkjet.
> The curing process is the key for direct printing, you need to cure it
> until seeing some smoke on pcb, ink color becomes much darker and copper
> will be oxidized. I think after a few trials you will understand what I
> mean.
> Good luck,
> Volkan
>
> ....successfully and reliably repeated. We have only heard from Voltan
> that it is do-able, but nothing about the
>
> reliability. From Stefan's posts, his trials show a repeatability problem.
>
>
>
>
>
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