RE: [Homebrew_PCBs] Spray etcher
2012-08-25 by Tony Smith
... ferric ... glue used ... Acrylic is welded, not glued. The glue (often acetone or MEK) causes the surface to melt and bond to each other. As you say so
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Re: [Homebrew_PCBs] Roland 3D Hobby Milling machine as PCB routing machine?
2012-08-25 by Dave Wade
... Very expensive for a 3 x 2 board which is the largest it will do. ... -- Dave Wade G4UGM Illegitimi Non Carborundum *** For the Hams on the list three
Spray etcher
2012-08-25 by D. Gareth Hughes
According to every website I have looked at, acrylic has good resistance properties to acids and alkalides, and specifically copper chloride and ferric
Re: Kepro bench top spray ectcher
2012-08-25 by psykhon@yahoo.com
Maybe a shurflo diaphragm pump?
Re: [Homebrew_PCBs] FeCl + citric acid = Edinburgh Etch; HCl is transparent?
2012-08-24 by DJ Delorie
HCl alone is transparent, but HCl alone will *not* etch copper. It needs an oxidizer. Any oxidizer will do, but H2O2 (peroxide) is dirt cheap and readily
Re: [Homebrew_PCBs] Re: Spray Etcher
2012-08-24 by Kevin Byrne
Thanks Pulsar Pro s appears to be Acrylic. Hard ware store sold me glue of industry and said if seam was tight I should not have a problem. It will not be
Roland 3D Hobby Milling machine as PCB routing machine?
2012-08-24 by Stephen Farthing
Hi Guys, Has anyone tried one of these to prototype PCBs? They cost about £600 in the UK, which is about
Re: [Homebrew_PCBs] Re: Spray Etcher
2012-08-24 by lists
In article , ... That s interesting because an awful lot of designs seem to use acrylic but I was advised against it by a supplier
Re: [Homebrew_PCBs] Re: FeCl + citric acid = Edinburgh Etch; HCl is transparent?
2012-08-23 by Kevin Byrne
Understood thanks I am not a expert but Google advise I listen to & back off. Kevin ________________________________ From: Donald H Locker
Re: [Homebrew_PCBs] Re: FeCl + citric acid = Edinburgh Etch; HCl is transparent?
2012-08-23 by Donald H Locker
Sorry to followup to my own post, but I discovered the didn t work right either. Something suspicious here. Beware. -- *Plain Text* email -- it s an
Re: [Homebrew_PCBs] Re: FeCl + citric acid = Edinburgh Etch; HCl is transparent?
2012-08-23 by Donald H Locker
The rogue link carries a trailing space character (%20) Best to enclose hyperlinks in so that the browser or email
Re: FeCl + citric acid = Edinburgh Etch; HCl is transparent?
2012-08-23 by tda7000
That would be the one http://joshuagalloway.com/pcb.html If I click the link from the post it redirects me to somewhere entirely different
Re: [Homebrew_PCBs] Etching by shaking, tumbling, turning over, ultrasonics . . .
2012-08-23 by Kevin Byrne
I have a question on this subject if I may. On U-Tube I saw a video of a bubble etchant tank simular to Pulsar Pro s. version. If I spend the time and money to
Re: FeCl + citric acid = Edinburgh Etch; HCl is transparent?
2012-08-23 by Kevin Byrne
One of links on this page produced a warning not to be ignored about hackers. Be advised Kevin [Non-text portions of this message have been removed]
回复： [Homebrew_PCBs] Etching by shaking, tumbling, turning over, ultrasonics . . .
2012-08-23 by 曹春玉
I once heard that some pcb fab houses use plastics to cover plated through holes to avoid erosion of copper layer. ... 发件人: Robin Whittle
Re: [Homebrew_PCBs] Etching by shaking, tumbling, turning over, ultrasonics . . .
2012-08-23 by Russell Shaw
... Circulation would still be good to carry away saturated chelated citric acid. I think an air-exposed system of etchant dripped or sprayed onto the pcb and
Etching by shaking, tumbling, turning over, ultrasonics . . .
2012-08-23 by Robin Whittle
For small boards, I wonder if anyone has explored placing the board in a well-sealed, clear glass or plastic food container, or perhaps something more
FeCl + citric acid = Edinburgh Etch; HCl is transparent?
2012-08-23 by Robin Whittle
In the past I used Ferric Chloride. My recent PCB-DIY adventures are just beginning. At present I am using a mixture of ferric chloride and citric acid,
Re: Spray Etcher
2012-08-22 by cunningfellow
... I would advise against it. Acrylic is not suitable material with CuCl. (PE,PP, PVC are all OK) Conical spray nozzles wont get a uniform etch. The high
Spray Etcher
2012-08-22 by David
Hi All, Has anyone tried making this? http://www.instructables.com/id/Printed-Circuit-Board-PCB-Sprayer-Machine/?ALLSTEPS It looks very interesting!!
Re: Suitability of pump for spray etching
2012-08-22 by designer_craig
I have one other idea I want to try some day. When I clean paint rollers after painting, I wash them the best I can then take them out side and hit the roller
Re: Magnetic drive pumps for spray etchers
2012-08-22 by cunningfellow
... Quite coincidental timing here really. I have just a few weeks ago finished the rotary spray etcher I started in 2006 and am almost done with my photo
Re: [Homebrew_PCBs] Re: Bag it?
2012-08-22 by Kevin Byrne
That Pulsar was Advertised at a number of places like Web sites. I am a retired RC pilot and never considered that thought.I woman s iron will not work for me
Re: Suitability of pump for spray etching
2012-08-22 by jcarlosmor
Hello Craig, Remarkable good work you did. Also, thank you for posting your drawing. I am sure that it will be helpful for many users trying to stay away from
Re: Suitability of pump for spray etching
2012-08-22 by designer_craig
I have an etcher suggestion for you. Many years back I build a spray etcher for a college class, it never really worked all that well. Spray holes would get
Re: Bag it?
2012-08-22 by John
The iron is from another hobby of mine, model airplanes. We use a small iron to put on plastic covering. I run it very hot, well over 350F as measured with my
Fw: [Homebrew_PCBs] Re: Magnetic drive pumps for spray etchers
2012-08-22 by Derward Myrick
... From: Derward Myrick To: Homebrew_PCBs@yahoogroups.com Sent: Wednesday, August 22, 2012 9:38 AM Subject: Re: [Homebrew_PCBs] Re: Magnetic drive pumps for
Re: [Homebrew_PCBs] Magnetic drive pumps for spray etchers
2012-08-22 by Derward Myrick
Andy, Several years ago I got one from a maker of medical pumps and the volume was too small. I think a large one could be made to move a larger volume and
Re: Magnetic drive pumps for spray etchers
2012-08-22 by jcarlosmor
Hello Jan, Very interesting. However, I think that the users in this forum that are interested (including me) in building a spray etching system are more
Re: Magnetic drive pumps for spray etchers
2012-08-22 by jcarlosmor
Hello Andy, Unfortunately, peristaltic pumps are not suitable for obtaining the necessary flow and pressure for spray ecthing. I had reviewed some of the
RE: [Homebrew_PCBs] Magnetic drive pumps for spray etchers
2012-08-22 by Tony Smith
... than ... thereby ... impeller ... I ve got a couple of those that I paid $20 for (http://www.ebay.com.au/itm/280877928450), mine are 24V @ 1A, and claim
Re: [Homebrew_PCBs] Magnetic drive pumps for spray etchers
2012-08-22 by Jan Kok
Something fun to think about or play around with: FeCl (and probably other etchants as well) is quite conductive. Now, conductive materials like to stay fixed
RE: [Homebrew_PCBs] Magnetic drive pumps for spray etchers
2012-08-22 by Andrew Volk
Has anyone looked at peristaltic pumps? The only thing that comes in contact to the etchant is the rubber hose that goes through the pump. I got one off of
Magnetic drive pumps for spray etchers
2012-08-22 by Robin Whittle
From the thread: Kepro bench top spray etcher : An eBay search for: magnetic pump produces hundreds of results, some of them for small pumps costing less than
Re: Kepro bench top spray ectcher
2012-08-22 by Ben L
... Take look at www.usplastics.com they list Magnetic Drive Pumps. I have never used them and prices may not be the cheapest but should give you some ideas
Re: Kepro bench top spray ectcher
2012-08-21 by jcarlosmor
Kevin, All of those pumps have stainless steel metal shafts, who impose a problem for etching. However, those units are the kind that have been used for spray
Re: [Homebrew_PCBs] Re: Bag it?
2012-08-21 by Kevin Byrne
Can that Printer devise be made with a HP brand lasar printer and if so where can I go to find help in figureing out costs, uses ect.?
Re: [Homebrew_PCBs] Re: Bag it?
2012-08-21 by Stefan Trethan
That will be a wasted effort once you buy a laminator. Ironing by hand is much more difficult to get consistently right. You can make a laminator out of a
Re: [Homebrew_PCBs] Re: Bag it?
2012-08-21 by Kevin Byrne
What kind or iron did you use, how much heat and what is the number on the box of HP paper if I may ask a question? . I am some one trying to master iron on
Re: Bag it?
2012-08-21 by John
It worked well in spite of the seepage. As long as I wear gloves and work in a glass baking dish I think it will be standard operating procedure in my shop! I
Re: [Homebrew_PCBs] Re: Kepro bench top spray ectcher
2012-08-21 by Kevin Impson
Hi Guy s, Is there any info on how the CP1-115 pump handles the different etchants? I had started to build a spray etcher and found a pump from Little Giant
Re: Bag it?
2012-08-21 by Kevin Byrne
Pulsar Pro web sit talks about bagging the board. They have a pro way of laminateing. I doubt zip lock will stand up to etchant my self due to my experiences
Re: Kepro bench top spray ectcher
2012-08-21 by jcarlosmor
It is hard to know the real amount. The spray etchers of that time only include some a few specifications. The Kepro BTE-202 and BTE-201 used a Little Giant
Bag it?
2012-08-21 by John
Well, I decided to make a simple proto type board, no fuss, no muss, minimum effort. Thomas Gootee put a imqage in the public domain around here somewhere.
RE: [Homebrew_PCBs] Re: Kepro bench top spray ectcher
2012-08-20 by Andrew Volk
What is the volume of etchant that has to be pumped, say in Gal/Min? From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of
Re: [Homebrew_PCBs] Re: Kepro bench top spray ectcher
2012-08-20 by Stefan Trethan
PP is difficult to glue, weld it instead. ST
Re: Kepro bench top spray ectcher
2012-08-20 by jcarlosmor
Hello Tom, Thank you very much for your detailed information. I agree with you that the pumps in this unit get damaged very soon, and need continous
Re: Kepro bench top spray ectcher
2012-08-20 by jcarlosmor
Hello Jean-Francois, Thank you for your reply. Yes, I already know that Dalpro continue with all the former line of products of Kepro. However, the spray bars
Re: [Homebrew_PCBs] Re: Kepro bench top spray ectcher
2012-08-20 by Roland Harriston
In other words, the holes are staggered . If I recall correctly, virtually every part of the Kepro sysems can be described as general hardware...off the
Re: Kepro bench top spray ectcher
2012-08-20 by twb8899
In my last message I tried to show how the spray manifold drill pattern would look but it didn t post correctly. This time I ll add some hyphens so it spaces