Homebrew PCBs

On Sun, 05 Jun 2005 11:09:04 +0200, Philip Pemberton  
<philpem@...> wrote:

> Sounds like the Multicore Copperset system. You use a 0.9mm mechanical
> pencil to insert the eyelet, then press it into place with a modified
> automatic centre-punch and an anvil (any decent sized lump of metal  
> should
> work - an old heatsink maybe).
> There's some info on using Copperset on  
> <http://www.electricstuff.co.uk/>,
> including how to use it without the expensive "starter kit". I also  
> spotted
> some info on the Harwin via pins - Harwin P/N T1559-01, Farnell P/N  
> 143-738.
> Most decent electronics component distributors stock them.
> Later.


we discussed some time ago it might not be hard to electroplate solder  
wire with copper.
If you plan to use a CNC it could be OK to use this homemade wire, and  
some kind of side cutting pliers mounted to the machine to cut the wire  
just over the hole. i guess if the machine is strong enough you could also  
press it with it.

Still i'm not convinced these connections are reliable.

IMO it is still best to do everything to keep via count low (that is no  
autorouting). If you use component legs as vias it works out ok. I usually  
use ICs and connectors in throughhole version, and passives in SMD, this  
allows good density and enough legs for vias.
You don't really need any vias this way, usually.

ST