Re: [Homebrew_PCBs] Re: Immerse tinning solution
2005-09-18 by tony tecson
hi, i have done ecthing using ferrric chloride for a lot of years using tap water with good results! ... wrote: ... Several possibilities come to mind:
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Re: Immerse tinning solution
2005-09-18 by Bob_xyz
... wrote: ... Several possibilities come to mind: It s possible that your local tap water may contain minerals or other impurities which could prevent
Immerse tinning solution
2005-09-18 by Andrew Mawson
Along with my multi tank system I acquired some Mega (Seno) 600-021 immerse tinning solution - it s rather old but I ll try it anyway ! On the bottle it says
Use of Mega PB720 multi tank system
2005-09-18 by Andrew Mawson
I m lucky enough to have acquired a secondhand Mega PB720 7 tank pcb processing system. (Develop / wash / etch / wash / Resist strip / wash / immerse tin). It
Re: [Homebrew_PCBs] Re: CuCl etchig web page
2005-09-16 by Russell Shaw
... The msds says FeCl3 6H2O is crystals, so the liquid stuff you buy must be mixed with water anyway. Maybe it etches faster with the extra dilution just
Re: [Homebrew_PCBs] Re: CuCl etchig web page
2005-09-16 by Adam Seychell
... yep, 5~6 minutes sounds ok for FeCl. But I didn t think AP at 45°C wouldn t be that fast as Phil is finding, maybe at 70°C however. ... Thats a good link
Re: [Homebrew_PCBs] Re: CuCl etchig web page
2005-09-16 by Russell Shaw
... ... ... Ferric chloride works faster if it is diluted with water (to 1 part or 2 parts water). A properly cleaned 35um copper pcb should etch in 5 minutes
Re: CuCl etchig web page
2005-09-16 by Phil
I can tell you for sure I m using 1/1 oz material because I have weighed it out. I also have a bunch of .5/.5 and it is noticably lighter. Haven t etched it
Re: [Homebrew_PCBs] Re: CuCl etchig web page
2005-09-15 by Adam Seychell
Thats interesting your experience were different than what I measured in my test. The bubbles agitation for my test was very vigorous, so maybe that had
Re: CuCl etchig web page
2005-09-15 by Phil
Very nice site! It would have been very helpfull when I was trying CuCl. One question, you have a chart that shows AP as generally having about 1/4 the
Re: [Homebrew_PCBs] CuCl etchig web page
2005-09-15 by Les Newell
Hi Adam, Very good work. Thanks for that very informative article. Definitely one to add to my bookmarks. Thanks, Les
CuCl etchig web page
2005-09-15 by Adam Seychell
Hello, I have finally got around to writing up a web page describing the things I ve learned about cupric chloride etching at home (also having fun with my
Re: [Homebrew_PCBs] flexible air bubble hose ?
2005-09-14 by Stefan Trethan
On Wed, 14 Sep 2005 11:33:33 +0200, Adam Seychell ... Better take it out alltogether, if you have a leak it will eat the lead and probably upset your hose with
Re: [Homebrew_PCBs] flexible air bubble hose ?
2005-09-14 by Adam Seychell
... Thanks for that. I ll try removing the lead wire or put a piece of heatshrink tube over it. I know what your saying about the more air delivery the better
Re: [Homebrew_PCBs] flexible air bubble hose ?
2005-09-14 by Stefan Trethan
On Wed, 14 Sep 2005 03:14:29 +0200, Adam Seychell ... I have one very identical to the one in the picture, only black. I took the lead wire out, and then glued
Re: [Homebrew_PCBs] flexible air bubble hose ?
2005-09-14 by Russell Shaw
... How about a block of porous carbon or charcoal? Glue a half-section of pvc pipe along its length for the air-supply. Another way is to drill 10mm holes in
Re: flexible air bubble hose ?
2005-09-14 by Phil
I use an hdpe tube (used for ice-makers or some such) and drilled the smallest possible holes (.024 - about .6 mm). by trial and error I found that if I space
flexible air bubble hose ?
2005-09-14 by Adam Seychell
Does anyone know if those flexible air bubble hoses used for fish tanks are any good for ferric or CuCl etch tanks ? see,
Re: Reminder about pictures
2005-09-13 by Steve
You make a lot of good points (if I ignore the snippy stuff at the end). : P It s a huge pain to try and make backups of a Yahoogroup, although the messages
Re: [Homebrew_PCBs] EDM enclosure -- suggestions?
2005-09-13 by Stefan Trethan
On Tue, 13 Sep 2005 01:53:21 +0200, lists ... yes i know, i was more or like meaning the same, making sure nobody is really using expensive half sizes. I
Re: EDM enclosure -- suggestions?
2005-09-13 by Phil
... pictures of. ... think of ... consists of ... sort of ... I some times go to local industrial auctions - shears and brakes come up fairly regularly. The
Re: [Homebrew_PCBs] Re: Reminder about pictures
2005-09-13 by Alan King
... Pretty meaningless, all points on the net are about the same work away. Heck the primary group itself has a more secondary files access method than a real
Re: [Homebrew_PCBs] EDM enclosure -- suggestions?
2005-09-12 by lists
In article , ... Actually I don t use /any/ metric screws by choice. I was referencing the nearest equivant metric sizes to
Re: [Homebrew_PCBs] EDM enclosure -- suggestions?
2005-09-12 by lists
In article , ... I don t have a case I m currently working on ATM, I can take pictures of. I am very fortunate in
Re: [Homebrew_PCBs] Flex circuit material
2005-09-12 by guja
single sided flex laminate: http://export.farnell.com/jsp/endecaSearch/partDetail.jsp?SKU=4137978&N=401 info: http://www.farnell.com/datasheets/38596.pdf Bill
Re: [Homebrew_PCBs] EDM enclosure -- suggestions?
2005-09-12 by Stefan Trethan
... I use two pieces of angle iron in a vice, and a piece of wood to help hammer the sheetmetal over. But then i only made rather small enclosures this way
Re: [Homebrew_PCBs] Flex circuit material
2005-09-12 by Stefan Trethan
On Mon, 12 Sep 2005 20:18:27 +0200, Bill P @ PEARL ... Do you need plastic foil or does thin FR4 do the trick? If it isn t bent repeatedly and like 5cm radius
Re: [Homebrew_PCBs] EDM enclosure -- suggestions?
2005-09-12 by Stefan Trethan
On Mon, 12 Sep 2005 20:26:48 +0200, lists ... Yes, Al angle is neat. You can rivet it for the connections that stay . Please do the world and yourself a
Re: [Homebrew_PCBs] FhCl -- AP -- CuCl - advantages dissadvantages......
2005-09-12 by lists
... I ve always used it and never anything else. Mind you, I didn t know about the alternatives until I started reading this group about a year ago. Typically
Re: [Homebrew_PCBs] Re: Reminder about pictures
2005-09-12 by Stefan Trethan
... Well, it s certainly much less secondary than a different webspace at a different provider owned by a different person. It s a yahoo group, just like
Re: [Homebrew_PCBs] European Components for PCB's
2005-09-12 by lists
In article , ... We have the same problem the other way round :-) And sometimes with other european countries. I for one would be
RE: [Homebrew_PCBs] EDM enclosure -- suggestions?
2005-09-12 by Joe Xerox
Hi, I m interested in this way of building enclosures. Can you post some pictures? An how do you bend the AL and make straight and nice looking corners?
Re: [Homebrew_PCBs] EDM enclosure -- suggestions?
2005-09-12 by lists
In article , ... Sounds similar to the methods I use - 1/4 x1/4 Al along the seams and drill and tap 6BA (6BA tapping is
Flex circuit material
2005-09-12 by Bill P @ PEARL
Hi All: Can anyone tell my where I can buy some flex circuit material. I d like to find two-sided stuff, but single-sided will do just fine. Thanx Bill
Re: [Homebrew_PCBs] Re: Reminder about pictures
2005-09-12 by Alan King
... Standard web indexed FTP files and folders are even more familiar and just as easy, and even less hurdles logging in and jumping around. Direct links
Re: [Homebrew_PCBs] Re: Reminder about pictures
2005-09-12 by Alan King
... Well things like that get a bit obtuse, I ve seen it done before and the percentage of use is usually very low on secondary outlets.. ... like it s a big
Re: [Homebrew_PCBs] Re: Reminder about pictures
2005-09-12 by Stefan Trethan
I agree with you Steve. I d also say it is more reasonable for all members interested to join the other list than anything else, as it provides a already
Re: [Homebrew_PCBs] Re: solderpaste tinning
2005-09-12 by Stefan Trethan
... It might be better, i noticed the same thinness but if it protects the copper from corrosion that would be enough for me. I had the same thoughts about the
Re: Reminder about pictures
2005-09-12 by Steve
... Yahoo ... I already started another Yahoogroup just for files, but only a few have joined it. For that matter, I d rather keep control of any URLs, etc.
Re: solderpaste tinning
2005-09-12 by Kevin Morgan
I tried this recently, and noticed something similar. In my experiment I used a lead free acid based plumber s paste, and an old clothing iron at the highest
[Homebrew_PCBs] solderpaste tinning
2005-09-11 by Stefan Trethan
Hi, tried it today, with mixed results (but definitely worthwhile). A few things i noticed: There seem to be two stages of tinning. Where the heat of the
Re: [Homebrew_PCBs] Re: Reminder about pictures
2005-09-11 by Alan King
... With hosting plans at $10 or $15 per year now, maybe we should have a dollar drive (everyone who can mail in $1) and not be stuck with Yahoo on the files
Re: [Homebrew_PCBs] Re: Reminder about pictures
2005-09-11 by Dave Hylands
Hi Steve, ... Whoops - my apologies - I missed that you were talking about the files section. Sorry. -- Dave Hylands Vancouver, BC, Canada
Re: Reminder about pictures
2005-09-11 by Steve
... can see. You trimmed out a lot of that. I was concentrating on the Files section. ... That whole section was talking about the Files section. There is no
Re: Through hole rivets
2005-09-10 by Radra
I fabricate RF boards and consequently employ a lot of rivets for grounds. I use solder coated rivets from International Eyelets. Used to carefully crimp them
Re: [Homebrew_PCBs] Ferric Chloride powder - keeping it dry?
2005-09-09 by Adam Seychell
... Ferric chloride is one very hygroscopic see http://en.wikipedia.org/wiki/Iron(III)_chloride Seal in air tight container if you want don t want it any
Ferric Chloride powder - keeping it dry?
2005-09-09 by lcdpublishing
Hi all, When I bought the Ferric Chloride, I bought 2 pounds, enough to make a gallon, however, my tank only holds a half gallon. So, I mixed up a half gallon
Re: [Homebrew_PCBs] Reminder about pictures
2005-09-09 by Dave Hylands
Hi Steve, ... Yahoo automatically resamples eveything to fit into 300x400. So either you or the original poster can remove the hires version (which only the
Reminder about pictures
2005-09-09 by Steve
I know I keep reminding everyone about not uploading larger than about 300x400 in the Photos section. And not to upload files that are available on their own
Re: [Homebrew_PCBs] Through hole rivets
2005-09-09 by JanRwl@AOL.COM
In a message dated 9/9/2005 3:12:51 P.M. Central Daylight Time, andrew@mawson.org.uk writes: I d be interested to hear peoples experiences of using rivets for