Homebrew PCBs

John
I still don't understand why you don't use the chemical etching method?
I have been making PCB for years that way.
Here are two reasons I use a chemical method.

Price is cheap approximately $5.00 per board 
Time it takes 25mins start to finish per board including printing, 
applying to board, etching, cleaning, solder coating, drilling.

If you want to see what it is like send me your trace drawing. 
I will make a single sided board for you for up to 5"x 5" for $5.00.
That is including everything above except for drilling your final holes.
I do batches of boards almost every week.
My email is 
Hightechsystems@...

Derek




  Hi Gang,
         My goal is to come up with a way to make
  circuit boards fast and cheap! There are PCB
  houses out there that supply a program and fast
  turnaround. For under $30 you can have a board
  in your hands in several days. So I reasoned that
  $30 was the price to beat!
         While I was making and designing simple 
  CNC machines for people to learn on, someone 
  asked me if my machine could mill circuit boards.
  My first attempt was using a Dremel steel ball mill. It
  became dull after 12" of copper. I then used a No.50
  carbide drill bit. Using just the tip of the drill
  I was able to mill a circuit board for a power
  supply. One of my customers told me about Think and
  Tinker's Mechanical Etching bits. I bought ten bits
  and the fun began.
         That was a year and a half ago. Since that time
  I have made and sold over 200 PCBs. I use a Dremel 
  MultiPro and Think and Tinker 60 degree bits. I
  sell my boards for $30 each. I would like to see that
  price come down! I will try ball mills again. This
  time they will be carbide. If I can get carbide ball
  mills in the $5 range, this will reduce my costs.
         At the moment I am working on a machine that can
  be built for under $100 in just a few days. I am shooting
  for a machine made with 90 percent hardware store parts.
  Less is more! The machine will mill circuit boards-draw
  circuit boards or cut vinyl letters. It is built and designed
  like a plotter. Instead of a belt or piano wire I am using
  that cheap 1/4-20 rod people say is no good!
         I repaired and retro-ed a Bridgeport Boss.
  That's how I got into this hobby. I know all about large
  over powered machines. Very little power is needed to mill
  circuit boards. Even with a sloppy machine a usable board
  emerges. Think FUN! Think CHEAP! It's only a hobby!

                                      John
          


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