Re: [Homebrew_PCBs] Re: Yet another CuCl Regeneration Scheme
2009-07-15 by Yngve
Any liquid will absorb just as much gas as it can hold. Partial pressures and all that stuff. Anything in excess of that will just bubble through. Even if
Messages
Browse messages
Page 251 of 707 · 35337 messages matched
Re: [Homebrew_PCBs] Re: Yet another CuCl Regeneration Scheme
2009-07-15 by Stefan Trethan
Yes, but how much of the oxygen is coming out too? I bet there is little difference between the air that goes in and comes out, even with nice small bubbles.
Re: [Homebrew_PCBs] Re: Yet another CuCl Regeneration Scheme
2009-07-15 by Stefan Trethan
I really didn t mean it badly. I haven t the slightest idea how much of air oxygen is used during regeneration and how much just uselessly bubbles out, so even
Re: [Homebrew_PCBs] Re: Yet another CuCl Regeneration Scheme
2009-07-15 by leon Heller
... From: Ken Stuempges To: Sent: Wednesday, July 15, 2009 3:10 PM Subject: [Homebrew_PCBs] Re: Yet
Re: Yet another CuCl Regeneration Scheme
2009-07-15 by Ken Stuempges
OK OK OK Enough already. Based on everyone s vast experience, it won t work, will never work, can t possibly work. I will cease posting anything further
Re: [Homebrew_PCBs] Re: Yet another CuCl Regeneration Scheme
2009-07-15 by Stefan Trethan
I think you can smell very low concentrations of ozone (while we are at throwing about vague statements without any numbers I might as well join in.) ST
Re: Yet another CuCl Regeneration Scheme
2009-07-15 by Ken Stuempges
I have absolutely no idea what the concentration is. What was your experience ? (concentration I mean) I have the generator and air pump enclosed in an
Re: [Homebrew_PCBs] Re: Yet another CuCl Regeneration Scheme
2009-07-15 by leon Heller
... From: Ken Stuempges To: Sent: Wednesday, July 15, 2009 2:27 PM Subject: [Homebrew_PCBs] Re: Yet
Re: Yet another CuCl Regeneration Scheme
2009-07-15 by Ken Stuempges
... What method did you use when you made ozone? I wonder since the concentration using corona discharge is quite large, although I do not know about the
Re: [Homebrew_PCBs] Re: Yet another CuCl Regeneration Scheme
2009-07-15 by leon Heller
... From: Ken Stuempges To: Sent: Wednesday, July 15, 2009 12:31 PM Subject: [Homebrew_PCBs] Re:
Re: Yet another CuCl Regeneration Scheme
2009-07-15 by Ken Stuempges
Yes - Ozone generation converts the oxygen in the air to ozone. Since oxygen is O2 and ozone is O3, and highly reactive, (it wants to revert back to O2 and O
Re: [Homebrew_PCBs] Fw: The CHIP QUIK® SMT Rework Newsletter *NEW* (An Alternative To The Solder Iron)
2009-07-15 by leon Heller
... From: AGSCalabrese To: Sent: Wednesday, July 15, 2009 1:15 AM Subject: Re: [Homebrew_PCBs] Fw: The
Re: [Homebrew_PCBs] Yet another CuCl Regeneration Scheme
2009-07-15 by Stefan Trethan
I m not familiar with ozone generation, but doesn t it just convert oxygen from air to ozone? Or do you think the ozone is more efficient in regeneration than
Re: [Homebrew_PCBs] CuCl electrolisys (was Oxygen tablets for CuCl regeneration)
2009-07-15 by Simao Cardoso
... Adam, Thanks for the high value and expert suggestions. But this all ideia don t worth your time, the time off the thousands of people that subscribe this
Re: [Homebrew_PCBs] Fw: The CHIP QUIK® SMT Re work Newsletter *NEW* (An Alternative To The So lder Iron)
2009-07-15 by AGSCalabrese
Steve Does the CHIP QUIK® work with lead based solder and does it work with through hole components ? Gus ... [Non-text portions of this message have been
Yet another CuCl Regeneration Scheme
2009-07-14 by Ken Stuempges
If air is good, can Ozone be better? I cobbled up a small Corona-type Ozone Generator, and am pumping Ozone into my etching solution, rather than plain air.
Re: [Homebrew_PCBs] CuCl electrolisys (was Oxygen tablets for CuCl regeneration)
2009-07-14 by Adam Seychell
... Stainless cathode might be ok while being plated, because the negative potential will stop oxidation. I ve heard platinum anodes are no good either in
Re: Fw: The CHIP QUIK® SMT Rework Newsletter *NEW* (An Alternative To The Solder Iron)
2009-07-14 by sailingto
I just used chipquik tonight to remove a SMD chip - it actually worked pretty good, and using desoldering wick removed all the solder from the IC pins and
Re: [Homebrew_PCBs] Fw: The CHIP QUIK® SMT Rework Newsletter *NEW* (An Alternative To The Solder Ir on)
2009-07-13 by DJ Delorie
... Ah, good to know. Thanks!
Re: [Homebrew_PCBs] Solder paste recommendation from Dorkbot Seattle
2009-07-13 by Stefan Trethan
I m wary of buying paste at any warehouse distributor. They have it in stock for who knows how long and probably not even refrigerated. I ve thrown away most
Re: [Homebrew_PCBs] Fw: The CHIP QUIK® SMT Rework Newsletter *NEW* (An Alternative To The Solder Iron)
2009-07-13 by leon Heller
... From: DJ Delorie To: Sent: Monday, July 13, 2009 5:24 PM Subject: Re: [Homebrew_PCBs] Fw: The CHIP
Re: [Homebrew_PCBs] Fw: The CHIP QUIK® SMT Rework Newsletter *NEW* (An Alternative To The Solder Ir on)
2009-07-13 by DJ Delorie
The few times I ve had to remove big SMT parts, I put a dime (or a quarter, depending on size) on my hotplate (and two off the hotplate) and place the board
Fw: The CHIP QUIK® SMT Rework Newsletter *NE W* (An Alternative To The Solder Iron)
2009-07-13 by Steve Greenfield
Solder paste, solder flux, and best of all their low temp solder alloy removal stuff. Melt it into the connections to an SMD and it forms a crumbly alloy that
Solder paste recommendation from Dorkbot Seattle
2009-07-13 by Steve Greenfield
Recent discussion on Seattle Dorkbot list about solder paste, so I ve cut-and-pasted the messages to save them. Steve The best pricing I have found for Kester
Re: [Homebrew_PCBs] CuCl electrolisys (was Oxygen tablets for CuCl regeneration)
2009-07-13 by Simao Cardoso
... I think it s more common and better approach to use a 3 titanium rods holder. The board is just pressed between the rods. The middle rod in one side and
Re: [Homebrew_PCBs] CuCl electrolisys (was Oxygen tablets for CuCl regeneration)
2009-07-13 by Adam Seychell
... Titanium is great stuff, but expensive. I made PCB holder too. Two pieces of 6mm rod cut 30mm long. One end of each rod I hack saw a slot about 20mm deep.
Re: [Homebrew_PCBs] CuCl electrolisys (was Oxygen tablets for CuCl regeneration)
2009-07-13 by Stefan Trethan
Titanium maybe? Rods are fairly cheap I made part of my PCB holder out of it. ST
Re: [Homebrew_PCBs] CuCl electrolisys (was Oxygen tablets for CuCl regeneration)
2009-07-13 by Adam Seychell
... Common graphite welding rods deteriorate as gas evolves at the surface, breaking it away into small particles. Stainless anodes will vanish in no time flat
Re: Rank amateur needs advice
2009-07-13 by Steve
... It is very much in active development, too. The programmers are very active on their mailing list. There is a Tutorial PDF, well worth reading. Steve
Re: Rank amateur needs advice
2009-07-13 by Steve
... http://groups.yahoo.com/group/diptr Steve Greenfield fresh CET, Associate and two Journeyman on one go
Re: [Homebrew_PCBs] CuCl electrolisys (was Oxygen tablets for CuCl regeneration)
2009-07-13 by Simao Cardoso
... Forgot to say that graphite and maybe lead can be used as anode and maybe stainless steel can also be used as cathode.
Re: [Homebrew_PCBs] CuCl electrolisys (was Oxygen tablets for CuCl regeneration)
2009-07-13 by Simao Cardoso
... I don t think you get copper plated from the CuCl, just some removable wet deposit around the cathode. But i want to say something about chlorine gas use
Toner transfer & GBC H215...
2009-07-12 by Nick de Smith
Hi, Is this combination likely to work? I ve been given a NIB GBC H215 and I know GBCs are liked by toner transfer folk, but the H215 is a high speed model...
Re: [Homebrew_PCBs] Re: Rank amateur needs advice
2009-07-12 by Steve
Will do. Thank you. Steve K8JQ ... -- Read The Patriot Post hppt://PatriotPost.US/Subscribe/ Vetitas vos Liberabit
Re: [Homebrew_PCBs] Re: Rank amateur needs advice
2009-07-12 by Wayne Topa
... Also a Yes. Go to their site and Download the PDF manual (User Guide). It walks you through the whole process. Overall it is one of the best manuals I
Re: Rank amateur needs advice
2009-07-12 by Ben
The one that I would recommend is Dip Trace, it is not Free, Well think they might offer a Free Version with some limits. Ben
Re: [Homebrew_PCBs] Re: Rank amateur needs advice
2009-07-12 by Steve
One more off the wall question . . . can DipTrace print a mirror image of a PCB layout? Thanks. Steve K8JQ ... -- Read The Patriot Post
Re: [Homebrew_PCBs] Re: Rank amateur needs advice
2009-07-11 by Wayne Topa
... Yes diptr@yahoogroups.com Wayne wa1bbb
Re: [Homebrew_PCBs] Re: Rank amateur needs advice
2009-07-11 by Steve
Is there a yahoo group or similar support group for Diptrace? Steve K8JQ ... -- Read The Patriot Post hppt://PatriotPost.US/Subscribe/ Vetitas vos Liberabit
Re: Rank amateur needs advice
2009-07-11 by Steve
Diptrace is free for non-commercial use, up to 250 pins. http://www.diptrace.com After you install it, email them and tell them you are on the Homebrew_PCBs
Re: Tape for toner transfer
2009-07-11 by evaine23
Thanks for the quick replies. I picked up some 3M Blue painters tape just because it was the easiest to find and I didn t need to order it, so I ll give that a
Re: Tape for toner transfer
2009-07-11 by Steve
Check the Tshirt transfer sites. There is a black masking tape made to withstand the heat without leaving sticky goo in fabric or on ceramics. However, many on
Re: [Homebrew_PCBs] Re: Oxygen tablets for CuCl regeneration
2009-07-10 by Stefan Trethan
How about electrolysis? I experimented with etchant regeneration by electroplating before (carbon welding rod electrodes) and got copper plated from the CuCl,
Re: [Homebrew_PCBs] Rank amateur needs advice
2009-07-10 by DJ Delorie
... Actually, it has two autorouters now: http://wand.net.nz/~amb33/toporouter/ I m one of the gEDA/PCB developers, and hang out here. Also, there s a
Re: Oxygen tablets for CuCl regeneration
2009-07-10 by Ken Stuempges
Yes, they do release Oxygen, in the form of bubbles, when placed in water (normally a live bait tank for minnows). I made a small airtight container with a
Re: [Homebrew_PCBs] Re: Oxygen tablets for CuCl regeneration
2009-07-10 by Daniel Johnson
I agree that new ones would not work much better. I expect this has been covered but why not get a O2 cylinder and regulator ? ... From: Ken Stuempges
Re: [Homebrew_PCBs] Re: Oxygen tablets for CuCl regeneration
2009-07-10 by Stefan Trethan
Are they supposed to release oxygen in gaseous form? Maybe they work differently. ST
Re: Oxygen tablets for CuCl regeneration
2009-07-10 by Ken Stuempges
Well - I had to try it at least . . . The Oxygen tabs I tried did not generate enough oxygen to make many bubbles in the tank. Perhaps the tabs were old, but
Re: [Homebrew_PCBs] Rank amateur needs advice
2009-07-10 by Dylan Smith
... gEDA is both free and Free. There is a learning curve involved, of course. It does have an autorouter. Quite a few people here use it.
Rank amateur needs advice
2009-07-10 by Andrew Deschenes
Hi there! I m trying to teach myself to design and etch PCBs and I was wondering what software should I start with? I ve been messing around with FreePCB and