Re: [Homebrew_PCBs] Blackening Copper
2004-05-14 by Adam Seychell
... Thats interesting. I found this doing a google search http://doc.tms.org/ezMerchant/prodtms.nsf/ProductLookupItemID/JEM-0306-558/$FILE/JEM-0306-558F.pdf I
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Re: [Homebrew_PCBs] Blackening Copper
2004-05-14 by Stefan Trethan
... Thanks, that s worth a try.... The black i produced the other day didn t stick.... ST
Re: is $10.00 for two sheets a good price ?
2004-05-14 by Dave Mucha
... photos section under daves dr...... teh last two photos. one shows a couple boards on the back of single sided material the other shows dim lighting of a
Re: [Homebrew_PCBs] Blackening Copper
2004-05-14 by mpdickens
... How about a solution composed of NaOH and H2o2? You will get: Cu(OH) Blue in color Cu(OH)2 Black in color. If you apply heat, the Cu(OH) will be oxidized
Re: [Homebrew_PCBs] Blackening Copper
2004-05-14 by Adam Seychell
... I though sulfur was insoluble and therefore wouldn t have an effect, but I m no expert. I ve seen copper site in some 50g/L NaOH photoresists stripper
Re: is $10.00 for two sheets a good price ?
2004-05-13 by Dave Mucha
... Yup, I ll post some pics when I get back from my girls softball. Dave
Re: [Homebrew_PCBs] Re: is $10.00 for two sheets a good price ?
2004-05-13 by Stefan Trethan
... I still doubt it.. Was it really white like milk? ST
Re: is $10.00 for two sheets a good price ?
2004-05-13 by Dave Mucha
... I think that was what I had. wasted two sheets playing around with the T-Tech machine. Oh well, live and learn. Dave
Re: [Homebrew_PCBs] Re: is $10.00 for two sheets a good price ?
2004-05-13 by JanRwl@AOL.COM
In a message dated 5/13/2004 2:36:19 PM Central Standard Time, dave_mucha@yahoo.com writes: What does Teflon look like ? Skim milk, only solid. [Non-text
Re: [Homebrew_PCBs] Re: is $10.00 for two sheets a good price ?
2004-05-13 by Kevin Lavigne
Hi Dave, Check this out: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4660&item=3814427354 He s selling FR4 but says to ask if you need something
Re: [Homebrew_PCBs] Re: is $10.00 for two sheets a good price ?
2004-05-13 by Stefan Trethan
... I would expect like teflon ;-). white, flexible, very slippery surface, overall a very distinct experience. You can easily tell which is teflon from 10
Re: is $10.00 for two sheets a good price ?
2004-05-13 by Dave Mucha
... not ... much more ... seems to ... What does Teflon look like ?
Re: [Homebrew_PCBs] Re: is $10.00 for two sheets a good price ?
2004-05-13 by Stefan Trethan
On Thu, 13 May 2004 17:44:29 -0000, Dave Mucha ... Yes, there is white too. I have the impression the white stuff is much more brittle,
Re: 500 buck CNC pcb drill+ - is it ready yet ?
2004-05-13 by Dave Mucha
Hi Ballendo, we re excited, how is it comming ? Also, I went back thru the posts as I thought there was a note of a big brother, something a little larger, 18
Re: is $10.00 for two sheets a good price ?
2004-05-13 by Dave Mucha
... phenolic ... odd, my origional stuff was pure white. I m beginning to think it was not regular board material. Dave
Re: [Homebrew_PCBs] Re: is $10.00 for two sheets a good price ?
2004-05-13 by Stefan Trethan
... Yea, for milling the phenolic seems much more useful... I guess you will not be able to knock much off the price for regular buy at a shop in small
Re: is $10.00 for two sheets a good price ?
2004-05-13 by Dave Mucha
... still 5 ... supplyer. ... Yes, I have a T-Tech machine and the FR- stuff dulls the expensive bits quickly. btw, I found out that two boards is just under
Re: [Homebrew_PCBs] Blackening Copper
2004-05-13 by Stefan Trethan
... Never seen anywhere around, thought about it too... I am on to something, left it immersed in strong NaOH solution mixed with sulphur overnight. It got
Blackening Copper
2004-05-13 by Mark
Gun Blueing from your local hardware store. Very slightly dampen a corner of a cloth with it, rub briskly. You ll get a black sooty deposit if you put too much
Re: [Homebrew_PCBs] New to group and first attempt at PCB
2004-05-13 by Stefan Trethan
... Very common is eagle layout. it is a bit awkward to use but very useable. I think someone said a few days ago there is a free Protel version, check it...
New to group and first attempt at PCB
2004-05-13 by teilhardo
Hi All, I just joined this group because I am planning to make a homemade motor controller using the LMD18201 H-Drive. I am pretty new at circuit design but I
Re: (not so) off list [Homebrew_PCBs] Anyone up for making pcbs?
2004-05-13 by Stefan Trethan
On Thu, 13 May 2004 08:19:32 +0200, Stefan Trethan ... oh damn.. sorry bout that... someone forgot to change the adress line... please
Re: off list [Homebrew_PCBs] Anyone up for making pcbs?
2004-05-13 by Stefan Trethan
Do you have any offers yet? I would do it i think, but i m not sure if you have suitable methods to pay to the EU, would be high charges i guess... shipping
Re: [Homebrew_PCBs] Anyone up for making pcbs?
2004-05-13 by Stefan Trethan
... Well, i see now the schematic, but how many of these circuits need to be on one PCB? Ya also said something bout multiplexers? Do you need component
Re: [Homebrew_PCBs] Hot stations: Hakko and clones...
2004-05-13 by Stefan Trethan
... Well, then i better never throw it away... I though we are talking about some does the work on it s own magic soldering station. If you say the ersa
Re: [Homebrew_PCBs] Hot stations: Hakko and clones...
2004-05-13 by mpdickens
... Hello Leon! I ve had poor experiences with metcal equipment. When it works, it works well, but it does not hold up as well as pace. The metcal stuff has
Re: [Homebrew_PCBs] Hot stations: Hakko and clones...
2004-05-13 by Leon Heller
... From: mpdickens To: Sent: Tuesday, May 11, 2004 9:27 PM Subject: Re: [Homebrew_PCBs] Hot stations:
Re: Anyone up for making pcbs?
2004-05-13 by Steve
... couple ... specialized ... I have no problem with this, as long as replies go off-list. Steve, list-owner
Re: [Homebrew_PCBs] Anyone up for making pcbs?
2004-05-12 by Trend
Whoops, sorry: http://webpages.charter.net/trend/proto.pdf I remember people giving me price ideas before in this channel, (a couple months ago), so I didn t
Re: [Homebrew_PCBs] solder "tweezers" or hot air pencil?
2004-05-12 by Stefan Trethan
... Ok that s how i do it all the time... didn t love it too much. (there is no secret trick) thanks ST
Re: [Homebrew_PCBs] solder "tweezers" or hot air pencil?
2004-05-12 by Paul Davis
You just heat one side up until the solder melts, then heat the other side but leave the heat on for an extra half second then heat the other pad and push of
Re: [Homebrew_PCBs] Anyone up for making pcbs?
2004-05-12 by Stefan Trethan
... Lee, we do not see attachments here, we want to prevent virus attacks. please upload in the files section. To your request, this is not really what the
Re: [Homebrew_PCBs] Re: Blackening copper
2004-05-12 by Stefan Trethan
On Wed, 12 May 2004 22:37:23 +0100, lists ... thanks, don t have this one either.. guess i must buy something.. ST
Anyone up for making pcbs?
2004-05-12 by Trend
Hello, I need 2 pcbs made. Attached is the schematic my friend NED designed for me. All I would need is the pcb done, I can solder the components on the
Re: [Homebrew_PCBs] Re: Blackening copper
2004-05-12 by lists
In article , ... Pottasium Sulphide Stuart.
Re: [Homebrew_PCBs] solder "tweezers" or hot air pencil?
2004-05-12 by Stefan Trethan
... How do you do that? without ripping off the contacts? ST
Re: [Homebrew_PCBs] solder "tweezers" or hot air pencil?
2004-05-12 by Paul Davis
If all you re changing is caps and resistors you can do it with a plain soldering iron easily enough. You can remove sot-23 parts too but it s a little
Re: [Homebrew_PCBs] is $10.00 for two sheets a good price ?
2004-05-12 by Stefan Trethan
On Wed, 12 May 2004 18:59:15 -0000, Dave Mucha ... I could get them mail order for eur3,35 a piece (200mmx300mmx1,5mm). 2,91each ich you
is $10.00 for two sheets a good price ?
2004-05-12 by Dave Mucha
Hi all, As you know I have been searching for phenolic boards and am still looking. I did find some boards that are going for $10.00 for two including Priority
Re: [Homebrew_PCBs] Re: Blackening copper
2004-05-12 by Stefan Trethan
... Read about that too, same lack of idea what it is here. ST
Re: Blackening copper
2004-05-12 by Steve
... only, not ... I found something at an art store a few years ago called Liver of Sulphur which I used to blacken copper for antiquing purposes. No idea
Re: [Homebrew_PCBs] Blackening copper
2004-05-12 by Stefan Trethan
On Wed, 12 May 2004 11:04:54 +0200, Stefan Trethan ... found something: Have no sodium
[Homebrew_PCBs] Blackening copper
2004-05-12 by Stefan Trethan
Strange question, i know.. any ideas how to chemically blacken the copper on a pcb (copper only, not epoxy). For optical purposes, not electric. should be even
Re: [Homebrew_PCBs] Re: Question About PCB cleaning
2004-05-11 by Roy J. Tellason
... Hey, you left out the post-soldering machining of those joints... :-) ... It d help if they used the same size markings, too.
Re: [Homebrew_PCBs] Hot stations: Hakko and clones...
2004-05-11 by mpdickens
... If you can find a Pace that was made in the last 10 years, buy it. No other rework station even comes close to the over all dependability or ease of
Re: Question About PCB cleaning
2004-05-11 by Dave Mucha
... needs a ... You mean that when I polish and wax the copper before priming with clear pre-resist and then a post primer and then resist, then bake the
Re: [Homebrew_PCBs] Question About PCB cleaning
2004-05-11 by Stefan Trethan
st is NOT as nice as a washed off board! ... That s the point, it is not better at all, it might just look a bit better. As you say, if the one that is going
Re: [Homebrew_PCBs] Question About PCB cleaning
2004-05-11 by JanRwl@AOL.COM
In a message dated 5/11/2004 6:50:51 AM Central Standard Time, stefan_trethan@gmx.at writes: If you are able to do clean soldering and don t smear the iron
Re: Hot stations: Hakko and clones...
2004-05-11 by wheedal99
... I ve got a Atten 850 dropped shipped direct from china. Works great. You can get these in the states now fairly easy for the same price (~$150)...
Re: [Homebrew_PCBs] Hot stations: Hakko and clones...
2004-05-11 by Alexandre Souza
... I got one here in Brazil - works flawlessly. I have a Hakko at work and a Sunkko 850A at home. ... Outgoing mail is certified Virus Free. Checked by AVG