Re: assembly board houses ?
2004-04-13 by Dave Mucha
... house ... that ... easy bake group? got a url ?
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Re: ETCH TANK'S [COST EFFTIVE]
2004-04-13 by rmustakos
... ... Denny OK, with my 3% h2o2, sounds like outgasing won t be an issue, just over dilution. It is also my intention to, post-etch, bubble it back
Re: New file uploaded to Homebrew_PCBs
2004-04-13 by dkesterline
... 30% Muriatic Acid ... 20Etching/DrugStoreHardwareStoreEtchant.html ... Geezee, if I d known I was creating somthing that was going to be kept, I might have
Re: [Homebrew_PCBs] assembly board houses ?
2004-04-13 by Leon Heller
... From: Dave Mucha To: Sent: Monday, April 12, 2004 5:53 PM Subject: [Homebrew_PCBs] assembly board
Re: [Homebrew_PCBs] assembly board houses ?
2004-04-13 by Ron Amundson
... I have 95% of my assemble prototypes built at Auscon. http://www.ausconinc.com/ They don t seem to complain about building as few as two boards, although
New file uploaded to Homebrew_PCBs
2004-04-12 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File : /Acid
Re: [Homebrew_PCBs] help!!! my ammonium persulphate doesent work!!!!!!!!!!
2004-04-12 by Adam Seychell
Can you describe more of what you are seeing ? Is the copper changing appearance ? Copper that has been rubbed down with a mild abrasive like Scotch Brite
[Homebrew_PCBs] cucl - effects of heating
2004-04-12 by Stefan Trethan
What effect has heating on CuCl etchants? Both, H2O2 and air regenerated are interesting to know. i would assume it may be faster, but have no idea if it will
Re: assembly board houses ?
2004-04-12 by wheedal99
... That kind of run might be tough for a commercial board stuffing house to commit to and still charge you a reasonable rate. You might feel out the easy bake
Re: help!!! my ammonium persulphate doesent work!!!!!!!!!!
2004-04-12 by Phil
the container I have says 250 g/Liter H20 so you should have used 500g. I d expect you to have a strong etching action with that temp and concentration. Phil
Re: ETCH TANK'S [COST EFFTIVE]
2004-04-12 by dkesterline
... the ... Just to point out, the 3% will work, but it s too weak for long term use to regenerate. ... much Well, that may be true, but from my
assembly board houses ?
2004-04-12 by Dave Mucha
Hi all, I have a few boards that I am starting to make as both kits and finished products. As you can imagine, I do not want to be an assembly line worker and
Re: [Homebrew_PCBs] help!!! my ammonium persulphate doesent work!!!!!!!!!!
2004-04-12 by Dean Thompson
... I get good results with ammonium persulphate, I use 1 part crystals to 5 parts hot water (75 deg C) as per the directions on the bottle I have. Your
Re: [Homebrew_PCBs] help!!! my ammonium persulphate doesent work!!!!!!!!!!
2004-04-12 by Leon Heller
... From: mumin55555 To: Sent: Monday, April 12, 2004 12:57 PM Subject: [Homebrew_PCBs] help!!! my
help!!! my ammonium persulphate doesent work!!!!!!!!!!
2004-04-12 by mumin55555
i tried for the first time to use ammonium persulphate instead of ferric chloride. i built a nice etcing tank with a heater at about 50 degree celcius and an
Re: ETCH TANK'S [COST EFFTIVE]
2004-04-11 by Richard Mustakos
Phil I think you forgot to mention that there is a built in heater! Don t show that around too much, it will take away the manufacturing edge you just got! I
Re: ETCH tank's [Cost Efftive ]
2004-04-11 by steve muirfield
RE CEREAL keeper s for etch tank s I can do 7 x 7 in board [In old money ] 180mm x 180mm Takes about 3 1/2 Leta s of etching or striper OK for quick prototype
Re: [Homebrew_PCBs] Is tehre anybody who can etch with H2O2 and HCl
2004-04-11 by Stefan Trethan
... then you use too much H2O2. there should only be tiny bubbles if any, not huge mounts of gas. you should not be able to smell chlor in the room... at least
Is tehre anybody who can etch with H2O2 and HCl
2004-04-11 by mikezcnc
without extensive fumes? Just resently someone reported that it was the case because when I etch my thoughts go to Auschwitz. Mike
Re: ETCH TANK'S [COST EFFTIVE]
2004-04-11 by dkesterline
... sewer ... White sewer pipe is PVC plastic, the black stuff is ABS, butI don t know anything about it s chemical reactivity. ... for ... I m guessing, but
Re: ETCH TANK'S [COST EFFTIVE]
2004-04-11 by Phil
Oh, yeah!?! well here is MY next etch tank. Built in recirc pump and bubbler and includes a custom cover. I can do a a 7 x7 board in it. Anyone know a good
Re: ETCH TANK'S [COST EFFTIVE]
2004-04-11 by Richard Mustakos
I went out yesterday to Staples and got a letter sized Rubbermaid hanging folder holder, and to a pet shop and got an air pump, heater, hose and air stone. It
Re: [Homebrew_PCBs] Re: ETCH TANK'S [COST EFFTIVE]
2004-04-11 by John Johnson
I was in The Container Store today. They had a few suitable items. One was a magazine slipcover. A collector s box for cereal boxes would be a nice fit too. I
Cheap etch tank
2004-04-10 by grantfair2001
I use a Coleman cooler, about 40 L, half full of CuCl. For air agitation I use a Think and Tinker style sparger , and a used vacuum pump. Works great! Grant
Re: [Homebrew_PCBs] Re: ETCH TANK'S [COST EFFTIVE]
2004-04-10 by Jeremy Taylor
I use a Cooler, Holds 12L, I fill it with 8L. I use a 150 Watt fully submersible heater on the bottom of the tank, resting on a piece of sealed PVC filled with
Re: [Homebrew_PCBs] Re: ETCH TANK'S [COST EFFTIVE]
2004-04-10 by David P Harris
Hi- Thanks for the link, they have several: *Low Cost PCB Etching System(416ES) - no heater **LOW COST ETCHING
Re: [Homebrew_PCBs] Re: ETCH TANK'S [COST EFFTIVE]
2004-04-10 by Stefan Trethan
... I consider making one of glass... I would get the glass for free, plexiglass not. I reckon gluing with silicone glue on both sides would be a good idea. It
Re: ETCH TANK'S [COST EFFTIVE]
2004-04-10 by Phil
oops, sorry about the URL - here it is again. ... anything ... be ... under ... probably ... a
Re: ETCH TANK'S [COST EFFTIVE]
2004-04-10 by Phil
That s not a bad solution at all. What s the capacity of the tank (both in terms of etchant and size of PCB)? I couldn t find anything that held 1 L (or
ETCH TANK'S [COST EFFTIVE]
2004-04-10 by steve muirfield
HI all ETCH TANK S I have used corn flaks containers from the hard ware store these have a sealed lid to keep continence dry made of white polythene and are
Re: [Homebrew_PCBs] Re: tqfp package with TT?
2004-04-09 by Stefan Trethan
... The bubbles came afer 15 minutes... It seems the first dose of H2O2 stays in without bubbling because there is no metal solved. no bubbles where to be seen
[Homebrew_PCBs] 300DPI resolution limits...
2004-04-09 by Stefan Trethan
damn... just noticed the posts i wrote the last week didn t show up at all... (at least is seems so..) i used the wrong adress i think, you will get them all
Re: tqfp package with TT?
2004-04-09 by mikezcnc
Stefan, I never added cupric chloride and I always use fresh mix due to safety reasons. I always have lighting fast etching and I always have fumes and lot s
Re: test..
2004-04-09 by Phil
stefan, its not on your end, its yahoo. ... provider?
Re: [Homebrew_PCBs] My experiences with Ammonium Persulphate
2004-04-09 by Rick C.
Thank you for affirming my contentions. I will never go back to FeCl even if I run out of A.P. Once the solution is spent, I dump it into a 5 gallon pail in my
Re: test..
2004-04-09 by stefan_trethan
damn, didn t get through... I hate gmx... i have changed to my student adress, which should work now. you can send to the old adress too, at least now. i don t
[Homebrew_PCBs] test..
2004-04-09 by Stefan Trethan
my damn mail provider says causes trouble, yahoo says mail undeliverable - bouncing mails (or something similar). i missed several messages and have to read
My experiences with Ammonium Persulphate
2004-04-09 by Phil
There was a bit of discussion about AP a while ago and now that I have had about a month of experience with it, I thought I d report back. I had a number of
Re: [Homebrew_PCBs] Re: horizontal etch - bottom side way faster
2004-04-09 by David Hopkins
Gentlemen, have a look at
Re: [Homebrew_PCBs] horizontal etch - bottom side way faster
2004-04-09 by Leon Heller
... From: Stefan Trethan To: Sent: Thursday, April 08, 2004 1:09 PM Subject: [Homebrew_PCBs]
Re: messless pcb holder
2004-04-09 by ballendo
Hello, How about the three rod holder Markus Z uses in his THP setup? That seems to me to be a really great design... Hope this helps, Ballendo ... rest the
Re: tqfp package with TT?
2004-04-09 by javaguy11111
... A few months back I did an experiment with a 555 time in a micro 8 package. My first project to experiment with some 0201 components as well. The 0201 s
a DIY PCB holder
2004-04-08 by Adam Seychell
Hi, I ve recently made some acid resistant PCB holders using a 10 mm perspex sheet cut into 16 mm wide strip. Here are two pictures
Re: [Homebrew_PCBs] Re: horizontal etch - bottom side way faster
2004-04-08 by Jeremy Taylor
Think n Tink is not HCL... it Sulfuric, and it works very well. . JT ... From: rmustakos To: Sent:
Re: [Homebrew_PCBs] messless pcb holder
2004-04-08 by Stefan Trethan
hi again... at you can see a pcb holder like bungard makes them. (Please not that this page may contain
Re: tqfp package with TT?
2004-04-08 by wheedal99
... some TT stuff. I m not ready to etch, yet, but I ... a ... limits ... I d probably try something on the order of 10-12mil at first --those are fairly
Re: horizontal etch - bottom side way faster
2004-04-08 by rmustakos
I m thinking about the same, and I remember seeing plastic letter and/or legal file containers that had snap on/off hinged lids, maybe Orffice Despot. If I
Re: tqfp package with TT?
2004-04-08 by wheedal99
... Yep, the first reply took 4.5 hrs to post, the 2nd reply beat the first one by a couple of hours. --Strange, must be an artifact of the clustered
Re: horizontal etch - bottom side way faster
2004-04-08 by Phil
You could just flip the board half way through. there are several plans/designs on the internet for vertical tanks. I used
Re: tqfp package with TT?
2004-04-08 by rmustakos
That s interesting - 300 dpi should give you 3&1/3 mil pixels, right? Is there anything in the driver that might be effecting it? Unless it is _really_ trying