Re: Etchiing with CuCl2 + O2 ?
2005-02-21 by grantfair2001
I built an autotitrator with a chemistry student some years back. It used a syringe pump driven by a stepper. We were dropping NaCl solution into silver
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Re: [Homebrew_PCBs] Re: Etchiing with CuCl2 + O2 ?
2005-02-21 by Adam Seychell
... A simple float might be done with a block of polyethylene plastic with a small stone tied to it somehow. But the S.G is fairly slow changing and doesn t
Re: Etchiing with CuCl2 + O2 ?
2005-02-21 by grantfair2001
Hi Adam - An automated process would take the tedium and time out of it. But do you know of sensors up to the job? A SG sensor might not be too hard to
Re: [Homebrew_PCBs] Re: Flexible circuit question
2005-02-20 by Rob Frohne
I ll try to explain. ... The reason we print twice is so that you make sure you are getting what you want before printing on the circuit board material. It
Re: [Homebrew_PCBs] Re: Flexible circuit question
2005-02-20 by Rob Frohne
We have done some of each, but find single sided using all surface mount components is easiest. Rob ... -- Rob Frohne, Ph.D., P.E. E.F. Cross School of
Re: Flexible circuit question
2005-02-19 by curt_rxr
... Hi Rob, I wonder if you could expand on your instructions? You print twice, once on card stock and again on the PCB material taped over the first plot. Is
Re: [Homebrew_PCBs] Re: Etchiing with CuCl2 + O2 ?
2005-02-19 by Adam Seychell
... Thanks for the info. Its just that I ve seen wide variations in etch performance with this etchant, so I m just trying to nut out what makes it work. It
Re: [Homebrew_PCBs] Flush Ink Cartridges
2005-02-19 by JanRwl@AOL.COM
Hypodermic needle (preferably with sharp point ground off) and rubber bulb with water. [Non-text portions of this message have been removed]
Flush Ink Cartridges
2005-02-19 by gmanca101
I was wondering what would be the best method of flushing ink out of a cartridge? I am going to start expermintation with etch-resistant inks and I want to
Re: Etchiing with CuCl2 + O2 ?
2005-02-19 by grantfair2001
A short PS to my last poat. When I started using this etchant in May 2003 the SG was 1.245; as noted last post it is now 1.262. Gramt ... Just
Re: Etchiing with CuCl2 + O2 ?
2005-02-19 by grantfair2001
Hi Adam- I have been using the CuCl you helped me to get going over a year ago. I have not modified the original solution at all, other than by etching boards.
RE: Scratch & Etch Progress
2005-02-18 by onenastyviper
Hi guys, more progress info... I found a simple PWM circuit using a 555 timer (I had the spares to hand) and used proteus to check the circuit operation and
Re: Flexible circuit question
2005-02-18 by Phil
This looks pretty interesting. Are you doing single sided or double boards this way?
Re: [Homebrew_PCBs] Re: Flexible circuit question
2005-02-18 by Rob Frohne
Here are the details: http://www.wwc.edu/academics/departments/engineering/students/classes/ engr357/index.htm We can do some pretty fine surface mount parts,
OZO Diversified Automation
2005-02-18 by ednspace
I just started working at a University and found this great, depaneling machine mothballed in the back of a small warehouse. There does not seem to be any
Re: Flexible circuit question
2005-02-18 by javaguy11111
... board ... to ... for ... Can you provide a few more details on this. Looking at the specs it looks like the Xerox Phaser is a solid ink printer. Do you
Re: [Homebrew_PCBs] Flexible circuit question
2005-02-18 by Rob Frohne
You can get from circuit board manufacturers just one layer of board that they make into multi layer boards. We use a Xerox Phasor 840 to print on these
Re: [Homebrew_PCBs] pentalogix viewmate
2005-02-15 by Stefan Trethan
On Tue, 15 Feb 2005 06:09:00 -0800 (PST), guja ... thanks a lot... ST
Re: [Homebrew_PCBs] pentalogix viewmate
2005-02-15 by guja
http://www.apcircuits.com/resources/downloads/downloads.html Stefan Trethan wrote: Hi, i would most appreciate if anyone having the
pentalogix viewmate
2005-02-15 by Stefan Trethan
Hi, i would most appreciate if anyone having the software would send it in a off list mail. It is free, and i registered, but it doesn t give me the file in
Re: [Homebrew_PCBs] effect of etchants on stainless steel?
2005-02-13 by Brian Clancy
G day Anthony & Leon Saw on eBay where a chap was selling magnetically coupled stainless steel centrifigal pumps. He said he was using one to pump Ammonium
Re: [Homebrew_PCBs] effect of etchants on stainless steel?
2005-02-12 by Leon Heller
... From: Anthony Shipman To: Sent: Saturday, February 12, 2005 12:16 PM Subject: [Homebrew_PCBs]
Re: [Homebrew_PCBs] si-prog pcb layout
2005-02-12 by Leon Heller
... From: tibi_vornic To: Sent: Saturday, February 12, 2005 7:42 AM Subject: [Homebrew_PCBs] si-prog
Re: [Homebrew_PCBs] effect of etchants on stainless steel?
2005-02-12 by Stefan Trethan
On Sat, 12 Feb 2005 23:16:34 +1100, Anthony Shipman ... You can find chemical compatibility pages in the links section, i think in the
effect of etchants on stainless steel?
2005-02-12 by Anthony Shipman
Is stainless steel safe with any of the common etchants such as ferric chloride or ammonium persulphate? -- Anthony Shipman Elektrichore -
Re: [Homebrew_PCBs] Re: Etchiing with CuCl2 + O2 ?
2005-02-12 by Adam Seychell
... If bubbles don t regenerate then your out of acid because ; 2CuCl + O + 2HCl - 2CuCl2 + H20 note HCl is needed for regeneration. If you see signs of
Re: [Homebrew_PCBs] CuCl2 tricky?
2005-02-12 by Adam Seychell
... Having used the etchant for few months now, I would agree with everything said above. A hydrometer, and a some droppers will get you out of the dark when
si-prog pcb layout
2005-02-12 by tibi_vornic
Hi guys, do you know of a place to download the PCB layout for si-prog(hardware interface for ponyprog)? If not, i ll do it myself, but being such a common
Re: [Homebrew_PCBs] CuCl2 tricky?
2005-02-12 by Stefan Trethan
... It is harder than just mixing FeCl, but not that much. It depends on how you like to work. If you are a person that likes to do stuff by gut feeling then
Re: Etchiing with CuCl2 + O2 ?
2005-02-12 by Phil
... Just ... My CuCl is about 1.2 SG and is still pretty slow. no amount of bubbling regens it. H2O2 make all the difference but its still taking abourd 40
CuCl2 tricky?
2005-02-12 by Bob_xyz
Having read up a bit on CuCl2 etching, I can see that there are quite a few advantages to using it, especially versus FeCl. I m wondering, though, about how
Re: [Homebrew_PCBs] Etchiing with CuCl2 + O2 ?
2005-02-12 by Adam Seychell
... That could be true, although I have not tested for upper limit for CuCl. It is possible that the etchant rate may be maximum when operating at saturation,
Re: [Homebrew_PCBs] Etchiing with CuCl2 + O2 ?
2005-02-11 by Stefan Trethan
On Sat, 12 Feb 2005 09:50:24 +1100, Adam Seychell ... Yes, i understand that the same way. when i started with my etchant it took long until the S.G. was high
Re: [Homebrew_PCBs] Etchiing with CuCl2 + O2 ?
2005-02-11 by Adam Seychell
... All references I ve seen for hobby etching with CuCl2 is S.G
Re: [Homebrew_PCBs] PCB beginner
2005-02-11 by JanRwl@AOL.COM
In a message dated 2/11/2005 12:03:12 A.M. Central Standard Time, naveedguy2@yahoo.com writes: or is there any other technique to transfer the PCB to the
Re: [Homebrew_PCBs] Etchiing with CuCl2 + O2 ?
2005-02-11 by Stefan Trethan
On Sat, 12 Feb 2005 08:31:08 +1100, Adam Seychell ... Of course, more CuCl means more etching, i guess it is the same with any etchant. I do use H2O2, but i
Re: [Homebrew_PCBs] Flexible circuit question
2005-02-11 by Stefan Trethan
... Maybe you get away by peeling a single glass layer with copper from standard board, it works quite well. I think the one i tried with is no real FR4 but
Etchiing with CuCl2 + O2 ?
2005-02-11 by Adam Seychell
Anyone here etch with CuCl2 but only rely on air for regeneration ? Just wondering what other peoples experiences are with this etchant. I m using HCl + CuCl2
Flexible circuit question
2005-02-11 by rwferr1
Hi, I ve been a member awhile but haven t posted before. I ve reviewed the previous posts on flex circuits and have a few questions. Can surface mount
Re: [Homebrew_PCBs] Re: PCB direct print to board
2005-02-11 by vattern
On Fri, 11 Feb 2005 07:36:54 -0000, Iulian Demetrescu ... Take a look at the stuff that ribbonsoft does. Qcad can be compiled from source to do dxf and the
Re: PCB direct print to board
2005-02-11 by ralucas4277
Iulian, You have obviously got this project planned to a higher level than I had anticipated. In theory, I can see no reason why a home brew piezo DOD can t be
Re: [Homebrew_PCBs] PCB beginner
2005-02-11 by Leon Heller
... From: Naveed Alam To: Sent: Friday, February 11, 2005 5:59 AM Subject: [Homebrew_PCBs] PCB
Re: PCB direct print to board
2005-02-11 by Iulian Demetrescu
... with EMC ... tell, only ... generated by ... Well turbocnc does the same. expects a g-code file as input and does all the motor control. But i plan to
Re: PCB direct print to board
2005-02-11 by Iulian Demetrescu
... well actually there are several ways to do the orifice one is drilling it with some technology like drill bits of 0.10 mm or go to a laser marking company
Re: PCB direct print to board
2005-02-11 by Iulian Demetrescu
... here you are right. i am currently experimenting with diffrent piezo elements ready made in the wild. i will post the success stories as they come along...
PCB beginner
2005-02-11 by Naveed Alam
I am a beginner and I intend to etch the PCD usind ferric chloride. I want to know whether | should use marker to draw my PCB connections or is there any other
Re: [Homebrew_PCBs] Re: Scratch & Etch, WHY?
2005-02-10 by Stefan Trethan
... Of course, CuCl is cheaper, and much better as it doesn t stop working some day, you can see progress through it, and it doesn t stain that bad (well, you
Re: [Homebrew_PCBs] Re: PCB direct print to board
2005-02-10 by Ed Okerson
... Does TurboCNC do tool path planning? I currently have a machine with EMC on it, it does not do any path planning. EMC, as near as I can tell, only
Re: PCB direct print to board
2005-02-10 by ralucas4277
... I am also very interested. However, I think the biggest problem will be manufacturing the knife edged orifice, and I am not sure that glassware is needed,
Re: [Homebrew_PCBs] PCB direct print to board
2005-02-10 by Cristian
... I m interested. Cristian