MAKING YOUR OWN PC BOARDS [1 Attachment]
Bry Carling <af4k@...>
0.016" traces are quite reasonable.
We used to make PC boards designed with Tape and Light tables in the mid 1970s
and the traces were often as narrow as 0.010" or 0.015" although 0.020" was preferable as a minimum.
THAT being said, I would not want to try to solder to traces that small and that close together., Very challenging! What kind of IRON and TIP did you use?
Thanks - Bry AF4K
From: 4sqrp@... <4sqrp@...> on behalf of David Martin davemrtn@... [4sqrp] <4sqrp@...>
Sent: Wednesday, February 22, 2017 3:15 PM
To: 4sqrp@...; n5ib@...
Subject: Re: [4sqrp] Re: MAKING YOUR OWN PC BOARDS [1 Attachment]
You mentioned minimum trace width.
Playing around making a smt board for an oscilator I made this board with 0.016" (16mil) traces, and fortunately the even narrower spaces between (near the chips) did etch out ok.
The worst thing was dealing with solder bridges, so use of solder wick was required from time to time.
On 2/22/2017 12:57, n5ib@... [4sqrp] wrote:
.016 if more than reasonable when using a PCB House to make your boards.
Years ago I used the tape and mylar method for very complex boards, usually laying out the boards, with solder mask and silkscreen and all mylars were a minimum of 2x, if not 4x, requiring photo reduction prior to the film being shipped to the fab house.
ï¿½The iron I use for smt I purchased from radio shack when they still had a store here.ï¿½ If you search there website for cat # 6400215, you will see a photo of the iron.
More than the size of the iron, the diameter of the solder used will have the greatest impact on your success while soldering smt components, if you are using a roll of solder.
On 2/22/2017 16:26, Bry Carling wrote: