Archive of the former Yahoo!Groups mailing list: Homebrew PCBs
Subject: Re: 500 buck PCB mill/drill revisited
From: PDJ <pdj@...>
Date: 2005-11-07
Hi All,
You can not buy or sell the machine I want for $500. RATS!
I have been working with point to point wiring for years:(. During this
time I always wished for a better way. A CNC machine seemed like a good
idea because it would do the work fast, cheap, and could do many other
things as well as PCBs. A few years ago I started looking for an
affordable CNC machine for PCBs and general use. I have seen just about
everything the web has to offer.
I considered building my own but what I really wanted to spend my time
on was using a CNC. Once I had a few bucks saved up I placed an order
for one, a little 12X12X3 machine from a web page for about 3K. But the
machine was never delivered. After a few months I went to the bank to
get my money back.
After this I started looking on Ebay for used CNC's. There are many
posts and some of the machines were new. It was quite a mix of different
designs. There were even machines made of MDF using all thread - very
cool. The range was inexpensive to very expensive.
One day while on Ebay I saw a buy it now for a new machine. The cost was
several K, but today was the day I was changing the way I do things.
When the machine arrived I went right to work. After I abused it for
about a year I thought I would give it an overhaul. While putting it
back together I saw a few things I would do differently and many things
I would not change.
One day I was reflecting back. I was thinking about the machine that I
was originally looking to purchase. I was looking for a precision
desktop model for around 1K. This machine was not available but I
thought if it's possible then go for it.
I tried to put a design together for under 1K - target price was around
800. However, I found the price for the raw components to be very
expense, even in volume. The finished design uses Baltic Birch for the
frame to save a bit. I have worked many years building museum exhibits
out of this material and it is a very impressive hard plywood. It is
also used in many machines and jigs around the shop.
Anyway, I need to have $1150 minimum for this machine however, this
price does not include the steppers, driver, power supply, and spindle.
Those items add another $400 or so to the total. I invite all to take a
look this CNC. This is both a shameless plug and an invite for your
feedback. You don't need to tie up this group form with your feedback;
you can reach me directly via email.
Please visit www.pdjinc.com and let me know what you think!
Thank you for your time,
Phil