In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Tony Leyland wrote:

Hi,

My current project has outgrown the ROM space of the SX28 and I'm therefore developing on the SX48.

I'm now in a position to produce a prototype PCB (1 or 2 units). I'd like to do this myself rather than
use a PCB production company and I realise I could use a Parallax SX48 ProtoBoard, but I enjoy a
challenge and I will be needing to produce other working projects based around the SX20 surface mount
device, so any experience gained will be put to good use !

I'm a DIY engineer, but my company has allocated a budget of $500-$1000 for purchase of any
necessary PCB production tools.      
 
I know this is a little off-topic, but I would like to ask if anyone has experience making a double sided
PCB that can incorporate an SX48 ? I've read with interest in other threads on this forum about soldering the SX48 in
place, but looking at the fine pad spacing and the track width needed, is it at all possible to produce such a PCB
by hand rather than by machine ?  

The tools I would be using (but have not purchased yet) will be:-

PCB UV exposure box.
Etching tank

I currently have the following tools:-

EaglePCB
High quality Laser printer (1200DPI) for artwork.
PCB drill + stand

As I say, I'm sorry it is a little off-topic, but if anyone can tell me if it's possible and point me in the right direction 
regarding the suitable PCB exposure/etching tools that will produce the fine detail of the
SX48 pads and tracks, I would be very appreciative.

Thanks in advance for any help.

Tony

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