Homebrew PCBs

--- cristian <cristianbip@...> wrote:


---------------------------------

>You are welcome to my schematic in a few days on the
>basis that it is purely experimental, but it would be
>nice to collaborate with someone who also has a
desire
>to see trhis thing cutting track. I will attach the
>pic asm code when i have got it working. Do you do
>PIC's?

I own a CNC milling machine from www.bungard.de and
I'm interested to replace
milling with EDM.
Also I've just bought a high power UV led and now I'm
looking for a good 
collimator, to "CNC draw'
on a sensitized PCB, as an alternative.
Mainly I'm an electronic engineer. I've manage to PIC
some projects, but 
I'm far from a PIC guru.
Also I own a full electronic lab plus a mill and a
lathe.

Farnell is here too (Romania).
What do you think, the polypropylene cap # 400-2143 
22u/100Vdc is good ?
They don't list high current discharge caps.
All the best to you there,
Cristian


Cristian,

I have used polyprop caps, don't know what their ESR
is, but they have worked ok for trials. I may just try
the ones you list.
The SCR I have selected is TYN812 (Farnell 682-524),
on the basis that it should cope with the voltage and
current for trials. May need a higher power item as
speed, ie average current increases.

Roger




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