Re: [Homebrew_PCBs] Homemade PCB holders for etcher
2003-04-15 by luther m stroud
I tried verticle etch with cucl and it was t even faster near the bubbles from the bottom that at the top . stainless steel may not last in the etchant .
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Re: Homemade PCB holders for etcher
2003-04-15 by rolanyang
I used an all-plastic clip similar to one of those potato chip bag clips (except smaller). Here is a pic: http://www.techfreakz.org/cucl2/?slide=7 ~Rolan
Re: [Homebrew_PCBs] Eagle Software Users
2003-04-15 by Dell Gillispie
Ned and Hans: Thanks. I think this solves the problem. I don t mind making several copies. This seems to work. Dell ... From: Ned Konz To:
Homemade PCB holders for etcher
2003-04-14 by Dwayne Reid
... I ll see if I can verbally describe what I use. I ll also see about posting pictures in that folder on YahooGroups (later). 3 raw materials used for my
Re: [Homebrew_PCBs] Eagle Software Users
2003-04-14 by Hans Wedemeyer
Dell, Many people have problem with that.. :-) Here s how 1) Drag a group over the item/items 2) Select CUT 3) RIGHT Click somewhere in the group The items are
Re: [Homebrew_PCBs] Eagle Software Users
2003-04-14 by Ned Konz
... Just open the board file, as this won t back-annotate. If the schematic opens, close it. Now you can turn on all layers, group all, cut/go, paste. -- Ned
Eagle Software Users
2003-04-14 by Dell Gillispie
Thanks: Ned, Derek, and John. I think one solution would be to group the whole drawing and then copy and paste it. Can t get the Group command to work.
Re: [Homebrew_PCBs] Eagle Software Users
2003-04-14 by John Greene
Hi Don, I use Eagle and Press -N- Peel. I first print out the output of Eagle on a standard sheet of paper. I then cut a piece of Press-N- Peel slightly larger
RE: [Homebrew_PCBs] Eagle Software Users
2003-04-14 by Derek B.
Dell, You can make multiple copies of your drawing, paste them on a single paper and use a photocopier to transferee to PNP blue. I just saw today is a new
Re: [Homebrew_PCBs] Eagle Software Users
2003-04-14 by Ned Konz
... Yes, there s a panelize ULP that you can run to do this. -- Ned Konz http://bike-nomad.com GPG key ID: BEEA7EFE
Re: Starting CuCl etchant from scratch
2003-04-14 by grantfair2001
Thanks for the quick response. The temperature here is just starting to warm up a bit; it was below freezing last week. Spring has not quite arrived yet. So it
Re: [Homebrew_PCBs] Re: Starting CuCl etchant from scratch
2003-04-14 by Adam Seychell
Opps, I forgot of mentioned that the reaction needs lots of atmospheric air !. keep the container open. Copper doesn t react with HCl acid by its self. There
Re: Starting CuCl etchant from scratch
2003-04-14 by rolanyang
I took the easy way out and just bought CuCl2 powder. But if I were to do it the way you re doing, I would imagine that bubbling air through the solution would
Eagle Software Users
2003-04-14 by Dell Gillispie
Hi: I am attempting to make a couple boards using Eagle software and Press-N-Peel. The smallest paper that I can feed my printer is 3 X 5 . Even at that
Re: Starting CuCl etchant from scratch
2003-04-14 by grantfair2001
Hi Adam- I was not feeling mislead, I just did not know what to expect. The copper has only been in the acid for 18 hours. The acid still looks clear, as it
Re: [Homebrew_PCBs] Starting CuCl etchant from scratch
2003-04-14 by Adam Seychell
You should put full 1.8kg of the wire in. I takes about 24 hours for the acid to really start going dark and cuprous/cupric chloride mix to be produced. The
Re: [Homebrew_PCBs] Re: Starting CuCl etchant from scratch
2003-04-13 by Stefan Trethan
yes, thanks, i read the page several times. my problem isn t understanding the particular process, i have a severe lack of common chemistry knoweledge. i do
Re: Starting CuCl etchant from scratch
2003-04-13 by grantfair2001
Hi Stefan - I really don t understand the chemistry; Adam is quite knowlegeable about it. There is some information on the chemistry in this article:
Re: [Homebrew_PCBs] Starting CuCl etchant from scratch
2003-04-13 by Stefan Trethan
If you have followed my last posts you may have read the H2O2 adding method is somewhat similar to what you want to do. It may be helpful in making the
Starting CuCl etchant from scratch
2003-04-13 by grantfair2001
Last night I added 1 litre of HCl (30.5%) to 2 litres of distilled water to make 12 litres of 10% etchant (to start off with) in my plastic Coleman cooler
Re: [Homebrew_PCBs] HCl and H2O2 versus CuCl
2003-04-13 by adam Seychell
... Color is a good way of checking if too much cuprous ions are presents. Cuprous is not very soluble and will form film on copper being etched and slow down
Re: [Homebrew_PCBs] HCl and H2O2 versus CuCl
2003-04-13 by Stefan Trethan
I see... Thanks for the explaination. I already had the idea that basically the same might happen after writing the post. But i don t fully understand why all
Re: [Homebrew_PCBs] HCl and H2O2 versus CuCl
2003-04-12 by adam Seychell
Well, the CuCl2 etching is basically what is happening in your solutions, the difference between the etching technique discussed recently on this group and the
HCl and H2O2 versus CuCl
2003-04-12 by stefan_trethan
First Hi to all, as you may guess I m new to this Group. If I don t regard any rules or common behavoir suggestions please point it out. To the question: I
Copper analysis chemicals
2003-04-11 by grantfair2001
It also appears that copper analysis chemicals might be easy to find- ammonium hydroxide is available as household ammonia, (though I don t know at what
Re: updates on cupric chloride etching. part 2
2003-04-11 by grantfair2001
Hi Adam - well this is quite timely, since the source I hoped could provide methyl orange, Cole Parmer (LabCo in Canada) does not sell chemicals and to date,
Re: [Homebrew_PCBs] Re: updates on cupric chloride etching
2003-04-09 by Adam Seychell
... Just think 5 liters of etchant at 150g/l of dissolved copper then you ll need to 4.4 pounds of CuCl2.2H20 or 5 pounds cost you 5*$39 = US$195 if you buy
Re: [Homebrew_PCBs] Re: updates on cupric chloride etching
2003-04-09 by Adam Seychell
... thats what I paid :) ... thanks, you can use kitchen scales to measure out the copper wire. Sometimes copper wire strands are coated with lubricants and
Re: [Homebrew_PCBs] updates on cupric chloride etching. part 2
2003-04-09 by Adam Seychell
Grant, There is some interesting reading inside the technical section on http://www.oxfordvue.com/
Re: [Homebrew_PCBs] Re: updates on cupric chloride etching
2003-04-09 by Adam Seychell
... The price here in Australia for basic class B burette is about AUD$55
Re: updates on cupric chloride etching
2003-04-09 by grantfair2001
Yeah, and my tank will hold up to 34 litres, and the Canadian chemical supplier I found will sell me CuCl for $175/lb. Even 5 litres worth would be beyond my
Re: updates on cupric chloride etching
2003-04-09 by rolanyang
Umm.. you can buy Copper Chloride powder and mix it with water+HCl. It s a lot easier and you can obtain a more accurate concentration right away.
Re: updates on cupric chloride etching
2003-04-09 by grantfair2001
The price for my Grade B, teflon stopcock 50 mL burette was $48.00 Canadian, which equals AUD$55. I was thinking about buying a used burette from an internet
Re: [Homebrew_PCBs] updates on cupric chloride etching
2003-04-08 by Adam Seychell
I found that higher copper gives faster etch. Currently I get around 15 minutes etch time at 20°C for 35 um copper, bubble agitation with a solution composed
Re: updates on cupric chloride etching
2003-04-08 by grantfair2001
Wow, you have been hard at work. Congratulations on your findings. I just bought a new Grade B burette on the weekend and it shipped today . (I had decided
Re: [Homebrew_PCBs] modifying etchant recipe for milder HCl
2003-04-07 by Adam Seychell
Not sure yet. I m still experimenting as we speak. Sorry I can t give you anything definite yet. The two recipes I can compare are from
modifying etchant recipe for milder HCl
2003-04-06 by grantfair2001
Hi Adam- the HCl I have is 20 deg. Baume or about 31.5% HCl, how should I modify your recipe (in message 1367 - Preparation of cupric chloride etchant)? Grant
air sparger completed
2003-04-06 by grantfair2001
I have completed and air sparger described on the Think and Tinker website. It sits in the Coleman cooler. I drilled a 9/16 hole in the lid so a piece of 1/4
Re: Coleman cooler as etchant tank?
2003-04-06 by rolanyang
El Cheapo Hydrometer Here is an idea: Use a small test tube with a few lead fishing weights at the bottom for a hydrometer. Seal the top, drop it in the
Re: old pcb layout to win31
2003-04-06 by rolanyang
Try EasyTrax from Protel. It run in DOS, but should be mighty fast, even on an old machine. Search Easytrax on google and you should have no problem finding
Re: [Homebrew_PCBs] Coleman cooler as etchant tank?
2003-04-06 by adam Seychell
Yes. Polypropylene, and polyethylene are the two most common plastics for containers and packaging and are have very good chemical resistance. I ve been
RE: [Homebrew_PCBs] old pcb layout to win31
2003-04-05 by luis emilio
hi thank you for you repply where i can find pclogic 1.1 ? regards muale Derek B. wrote:Hi, Any Dos software will work with Win
Re: [Homebrew_PCBs] Coleman cooler as etchant tank?
2003-04-05 by Ned Konz
... Polyethylene is a good choice for caustic and acidic liquids. -- Ned Konz http://bike-nomad.com GPG key ID: BEEA7EFE
Coleman cooler as etchant tank?
2003-04-05 by grantfair2001
I bought a plastic Coleman cooler to hold my cupric chloride etchant. The manufacturer says this is made of polyethylene. Is this likely to stand up well, or
RE: [Homebrew_PCBs] old pcb layout to win31
2003-04-05 by Derek B.
Hi, Any Dos software will work with Win 3.1 as it is running on top of Dos. Pclogic use to have a Dos program ver 1.1 that was pretty good. You can still find
old pcb layout to win31
2003-04-05 by luis_emilio2
hi i looking for one software, schematic and pcb layout to rum on old windows 3.1 help please best regards muale
Re: [Homebrew_PCBs] hai guys
2003-04-04 by Steve Greenfield
This would be on topic for lists such as Electronics_101 and Advanced_Electronics. http://groups.yahoo.com/group/Electronics_101
hai guys
2003-04-03 by bhaskaran chidambaram
i want info about oscillators and their functioning.if anyone has the material pls send it tnx Catch all the cricket action. Download Yahoo! Score tracker
Re: [Homebrew_PCBs] Re: air sparger for cupric chloride etchant and supplies
2003-04-03 by Adam Seychell
... don t know about shelf life, its from my chemistry set that I got when I was a kid (~ 20 years ago) and its works fine. The indicator solution I use is
Re: air sparger for cupric chloride etchant and supplies
2003-04-03 by grantfair2001
Thanks for the additional info, Adam. What kind of methyl orange are you using - aqueous? What percent, 0.1% or....? (MO seems to be more readily available