Homebrew PCBs

Hi Derek,
          It costs me $10 to make a 4" X 6" board drilled. I sell
them for $30. The bit is $7, the board is $2 and the drill is 
$1. In business you mark things up three times.  I don't charge
for the design or the idea. Thanks for your offer!

                                        John  


--- In Homebrew_PCBs@y..., "High Tech" <hightechsystems@a...> wrote:
> 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@a...
> 
> 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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