Homebrew PCBs

An alternative to a regular or specialized drillpress is to buy a small air
grinder for 1/8" bits.  It has very high RPM, about 50,000 and perfect for
the carbide drill bits.  Attach it to a small linear precision slide, cheap
on eBay, and you have the basis for a very accurate and efficient system.  

I built one about 20 years ago and I added an air operated  cylinder to
drive it from a footswitch.  I also  set up a laser pointer to make it even
faster to drill.  The grinder is only about $ 22 from Harbor Freight.  See:

http://www.harborfreight.com/air-tools/grinders/1-8-eighth-inch-air-micro-di
e-grinder-47869.html

 

Bertho

======================

 

From abuakif    Sent: Monday, August 08, 2011 06:59
I did try using toner transfer technique (laminator + magazine) but my drill
stand is not really fixed. I am thinking on getting the Proxxon later. In
Malaysia, all the tools are probably a lot more expensive than the one in
the States (I used to live and studied in St Louis for almost 10 years back
in 1995 - 2001).

Anyway, I just came back from a hardware store getting a airbrush compressor
and just ordered Pebeo Vitrea 160 from Kuala Lumpur. Also, I just purchased
an oven. These few days will be focused on getting the solder mask and
silkscreen using the technique described by Retromaster.





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