Homebrew PCBs

On Wed, 05 Apr 2006 10:02:53 +0200, Kamal Shankar  
<kbshankar2000@...> wrote:

> I knew about TonerTransfer method using laser printer
>
> (just bought some glossy paper and printed the traces,
>
> iron and done)
>
>
> But does this work for Inkjet too ?
>
>
> Since you have done it, can you please tell me what
>
> brand of special paper you use ?
>
>
> Also, how consistent are the results and what's the
>
> minimum track width & clearance you can manage using
>
> the inkjet ?


No it doesn't work with inkjet printers. The inkjet paper is used only  
because it has a special coating, in a laser printer.


The results are very consistent once you know how to do it. (consistent  
enough so that i can be confident every board will be a success.)

The minimum width i can reliably make is 6.66mil. Below that traces will  
break up due to underetching, transfer itself will work lower (e.g for  
text as component legend). Gap width can be 6.66mil too, but the closer  
the traces are together the more attention you must put into removing the  
paper - it will easily remain in those small gaps unless you rub there  
with a sponge or your finger. I usually use 10 mil clearance which does  
not need special attention. For most boards i will also use 10mil minimum  
trace width because there is plenty of space.


ST