Re: Copper plating material(s) for a neophyte - tinning brush
2006-01-10 by Steve
... For those of us in the US, I believe you mean what would be called denatured alcohol here. It is primarily ethanol (grain alcohol, therefore drinkable by
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Conformal Coating - PCB protectant ("PCB varnish"): Info and U.S. sources.
2006-01-10 by dyadic_cyclone
After quite a bit of searching on Google for PCB varnish & PCB lacquer , getting hits from every country except the USA. I finally stumbled on a good
Re: Copper plating material(s) for a neophyte
2006-01-10 by Dave
... It really depends upon the application. If he s designing a circuit for microwave frequencies, then it may be desirable to Silver plate everything (while
Re: [Homebrew_PCBs] Re: Copper plating material(s) for a neophyte
2006-01-10 by lists
In article , ... I suspect anyone not in the chemical industry would have a great deal of difficulty getting hold of it anyway.
Re: [Homebrew_PCBs] Eagle > Drill Sizes & Files for Gerber?
2006-01-10 by Stefan Trethan
I do not use eagle, but i do the following: My library parts have the diameters i want to use set correctly already, usually, because i drew them. Then, when
Eagle > Drill Sizes & Files for Gerber?
2006-01-10 by scratch_6057
I hope I m presenting this question in a manner in which it can be understood. My question is in regard to Gerber File creation in order to send files to a PC
Re: Copper plating material(s) for a neophyte - tinning brush
2006-01-10 by dyadic_cyclone
Does colophony really create a hard coating similar to laquer? I know flux removers are commonly available, and I have used them after using rosin core
Re: [Homebrew_PCBs] Re: Copper plating material(s) for a neophyte - tinning brush
2006-01-10 by Stefan Trethan
Alan, as i said it is mainly colophony resin (the same flux used in many solder wires) and alcohol. I know people who simply mix solid chunks of colophony
Re: Copper plating material(s) for a neophyte
2006-01-10 by alan00463
... colophony ... it all ... resistance ... At low ... Adam, you re right--I DON T KNOW WHAT I M DOING. That s probably why I sounded contradictory and
Re: [Homebrew_PCBs] Re: Copper plating material(s) for a neophyte
2006-01-10 by Stefan Trethan
... There s a much easier option. Buy a can of solder laquer spray. It is a laquer made mostly of colophony resin and alcohol. It takes a while to dry, but
Re: [Homebrew_PCBs] Re: Copper plating material(s) for a neophyte
2006-01-10 by Adam Seychell
... Plating the copper traces with another metal would cause no measurable increase in resistance, between an connection interface consisting of
Re: Copper plating material(s) for a neophyte
2006-01-09 by kilocycles
Alan, I have the
Re: Copper plating material(s) for a neophyte
2006-01-09 by alan00463
... step altogether so you have fully copper coated fiber glass material ? ... copper tracks with a conductive material since copper is already quite
Re: [Homebrew_PCBs] Copper plating material(s) for a neophyte
2006-01-09 by Adam Seychell
Sounds kind of odd to want to make an entire pre etched PCB, back to being conductive over its entire surface. Why not skip the etching step altogether so you
Re: [Homebrew_PCBs] Copper plating material(s) for a neophyte
2006-01-09 by Stefan Trethan
the cheapest is solder paste, probably. cool amp siver is expensive, but a little goes a long way. ST
Re: [Homebrew_PCBs] Copper plating material(s) for a neophyte
2006-01-09 by guja
Electroplating requires negative artwork (photo or tt) or interconnected tracks. alan00463 wrote: Next, I need to get a conductive
Re: Copper plating material(s) for a neophyte
2006-01-09 by idaho_huckleberry
Be very carefull with Ag, Silver loves to form dendrites if there is any moisture present (humidity or otherwise). Dave Miller ... electroplated. ... and a ...
Copper plating material(s) for a neophyte
2006-01-09 by alan00463
Next, I need to get a conductive substance to plate the copper board with, after etching. Either immersion or wipe-on or electroplated. I am guessing
Re: [Homebrew_PCBs] Re: Odd Soldering Tip Behavior
2006-01-07 by Stefan Trethan
... I have never gotten a tip dirty enough to need any of that. There can be several reasons why a tip doesn t wet well: If you run at high temperatures the
Re: Odd Soldering Tip Behavior
2006-01-07 by soffee83
... Bob, I figured you knew all that simple stuff already. ;) Stefan, what are you cleaning a really dirty coated tip with? Is a soft extra fine steel wool OK?
Re: Odd Soldering Tip Behavior
2006-01-07 by bob_ledoux
I bought the iron about 15 years ago at the Tektronics surplus store in Beaverton, OR. Since then it has been my primary circuitboard iron. It heats in 40
Re: [Homebrew_PCBs] Odd Soldering Tip Behavior
2006-01-07 by Stefan Trethan
On Sat, 07 Jan 2006 01:35:42 +0100, bob_ledoux ... No, the tips are stil made to hold solder. The crome plate doesn t, but that should
Re: [Homebrew_PCBs] Odd Soldering Tip Behavior
2006-01-07 by Leon Heller
... From: bob_ledoux To: Sent: Saturday, January 07, 2006 12:35 AM Subject: [Homebrew_PCBs] Odd
Free use autorouter program..
2006-01-07 by Kim Currier
Hi everyone... Is there a free auto-router program that I can download to do my complex boards? I can do simple ones myself, but complex boards are getting
Re: Odd Soldering Tip Behavior
2006-01-07 by soffee83
Bob, I m no iron expert, but that does sound like a pretty low wattage. I think my general duty weak one is a 23W. Could it be anything in the melting point
Odd Soldering Tip Behavior
2006-01-07 by bob_ledoux
I just purchased a new tip for my Antex 15 watt soldering iron. I can t get the tip to tin. It melts solder well but solder won t stick to the tip.
Re: WAS: CUCL Temperature , etch time ?????
2006-01-06 by Bob_xyz
... wrote: ... Excellent. That sounds much better than the hair bleach with its significantly lower percentage. Now I ve just got to find a hydroponic
WAS: CUCL Temperature , etch time ?????
2006-01-06 by Bruno St-Laurent
... ... gas. ... 30 ... that ... Ok guys , I finally found %35 H2O2 , and finding it was a lot easier that i tough , so guys if you need it
Re: Solder Mask Home Brew
2006-01-06 by Mike Phillips
One of the most useful parts of this soldermask experiement is to make the most pro looking microstip antennas for 900 mhz thru 2.4 ghz around. Most
Re: Solder Mask Home Brew
2006-01-06 by Mike Phillips
I only have pdf files, so the photo section would not accept them. Now they are deposited in the files section under Mike P s stuff. Mike ... work.
Re: [Homebrew_PCBs] Re: Solder Mask Home Brew
2006-01-06 by Henry Carl Ott
... I see what you are trying to do. Toner does melt pretty easily. It also blobs up a bit and traps flux. I can see three reasons for a solder mask (I m sure
Re: Solder Mask Home Brew
2006-01-06 by lcdpublishing
... Sorry but it appears as though the photo is gone. I just checked through both places and I can t find it so I must have deleted it. Give it a try, you
Re: Solder Mask Home Brew
2006-01-06 by Mike Phillips
I uploaded the top copper layer and also the reverse image of the soldermask layer into my Files folder called Mike P s stuff. These pdf files might make more
Re: [Homebrew_PCBs] Re: Solder Mask Home Brew
2006-01-06 by Stefan Trethan
On Fri, 06 Jan 2006 19:01:39 +0100, Mike Phillips ... i plan to try for ages, but keep forgetting. will make many boards tomorrow
Re: [Homebrew_PCBs] Re: Solder Mask Home Brew
2006-01-06 by Stefan Trethan
On Fri, 06 Jan 2006 18:31:52 +0100, Mike Phillips ... i really don t know. On E_101 maybe. It was not very sharp i believe. ST
Re: Solder Mask Home Brew
2006-01-06 by Mike Phillips
Even with no toner on the component pads, the nearby toner would melt? I m not thinking of just a blanket coating of toner over everything, but of using a
Re: [Homebrew_PCBs] Solder Mask Home Brew
2006-01-06 by Henry Carl Ott
... My experience with this is that the temperature of the soldering iron will melt away the toner, defeating the purpose of the solder mask. I used to not
Re: Solder Mask Home Brew
2006-01-06 by Mike Phillips
Good point about the stepping over the traces. That can be tested with just my b/w laser at home. I d like to see Chris s photo. Where can I find it? Mike ...
Re: [Homebrew_PCBs] Solder Mask Home Brew
2006-01-06 by Stefan Trethan
Chris showed a photo of a novel component legen a while ago - he printed the real world view of his PCB out and transferred that. So you can put legend
Solder Mask Home Brew
2006-01-06 by Mike Phillips
While wishing that I had made a prototype first, mostly because it s a good idea and a lot of fun, I came up with an idea for soldermask. Since we can use
Re: Stereo zoom/boom microscope
2006-01-06 by derekhawkins
... Thanks Leon.
Re: [Homebrew_PCBs] Re: Autorouters & meter
2006-01-06 by Stefan Trethan
On Fri, 06 Jan 2006 11:45:45 +0100, Leon Heller ... Yes, i know that now. i just couldn t believe you d use more vias than needed, esp. when it is so obvious.
Re: [Homebrew_PCBs] Re: Autorouters
2006-01-06 by Leon Heller
... From: Stefan Trethan To: Sent: Friday, January 06, 2006 10:18 AM Subject: Re: [Homebrew_PCBs] Re:
Re: [Homebrew_PCBs] Re: Autorouters
2006-01-06 by Leon Heller
... From: Stefan Trethan To: Sent: Friday, January 06, 2006 10:10 AM Subject: Re: [Homebrew_PCBs] Re:
Re: Autorouters
2006-01-06 by leon_heller
... Thanks, Bob, for spotting that. I ve just redone those two tracks. Leon
Re: [Homebrew_PCBs] Re: Autorouters
2006-01-06 by Stefan Trethan
On Fri, 06 Jan 2006 10:49:08 +0100, Leon Heller ... When you do pours, do you not route the ground connections at all? I route them just the same, cause i m
Re: [Homebrew_PCBs] Re: Autorouters
2006-01-06 by Stefan Trethan
On Fri, 06 Jan 2006 09:52:11 +0100, leon_heller ... That s a tough one! I ve taken them and put green circles over things that caught my eye, which i would
Re: [Homebrew_PCBs] Re: Autorouters
2006-01-06 by Leon Heller
... From: Bob_xyz To: Sent: Friday, January 06, 2006 9:33 AM Subject: [Homebrew_PCBs] Re: Autorouters
Re: Autorouters
2006-01-06 by Bob_xyz
My guess is that the autorouter did the elsie1 layout and you did elsie2 manually. In the elsie2 layout, there appears to be two unnecessary vias under
Re: [Homebrew_PCBs] Re: Autorouters
2006-01-06 by Les Newell
Autorouters aren t an instant solution. Don t expect to hit a button and instantly get a perfect layout. They only obey the rules they are given. To get a good