Homebrew PCBs

Bengt wrote:
> 
> Hi Adam & all
> Under the table is the way to go and to make a simple projection box 
> out what ever is also good. If you want to put your money on CCD 
> camera and TV screen you can work in good daylight as the other 
> solution is good when dark around you. Have been working with a pro 
> driller with projection box, PITA to change tooling but if you are 
> smart and have a big part of the table removable and indexed it will 
> work nicely.
> 
> Why are you putting all this effort and money on things like this? It 
> is far more easier to fix a small CNC driller to do the job.


Maybe but its a matter of pure luck that any given person comes across 
one of these small drill machines your talking about. And spending 
$1000's on a brand new drill machine is just not an option. Building a 
CNC machine from scratch is a mammoth task compared, to building a 
manual drill press. I knew of a small PCB fabrication shop that 
primarily produces prototype quantities and they manual drill ALL their 
boards, while the CNC machine sits in the corner gathering dust. When I 
asked why don't they use this machine, the owner said its too slow.


 From what I understand the only attractiveness towards CNC for hobby 
use is drill accuracy. With some clever thinking, a manual drill press 
should be able to be improved and reduce mental fatigue of trying to get 
each hole close as possible on target.

Stefan sounds like he is on a good idea using projection.