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!!
Thread
Spray Etcher
Re: Spray Etcher
2012-08-22 by cunningfellow
> David wrote: > > Hi All, > > Has anyone tried making this? > > http://www.instructables.com/id/Printed-Circuit-Board-PCB-Sprayer-Machine/?ALLSTEPS > > It looks very interesting!! > 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 pressure pump is pressure relived AFTER going outside the tank with tiny little flimsy connectors. See http://www.prototrains.com/etch2/etch2.html Where his spray etcher had an accident with large barbed fittings and hose clamps. and imagine how much fun it would be to have that image at 3 min 21 sec into the video on the OUTSIDE of the tank. If you are going to spend 100s of $ on building one, follow Adams build. You will get good results with the fan nozzles and motorised PCB. If you only want small boards and spending $40 sounds like more fun, just be patient. I am working on my write up.
Re: [Homebrew_PCBs] Re: Spray Etcher
2012-08-24 by lists
In article <k13l1h+40pi@...>, cunningfellow <andrewm1973@...> wrote: > I would advise against it. > Acrylic is not suitable material with CuCl. > (PE,PP, PVC are all OK) That's interesting because an awful lot of designs seem to use acrylic but I was advised against it by a supplier when I was looking to build a new tank (Still haven't built it) -- Stuart Winsor Only plain text for emails http://www.asciiribbon.org
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 storage. Petcock for drain into proper container. Kevin ________________________________
Show quoted textHide quoted text
From: lists <Stuartlists@...> To: Homebrew_PCBs@yahoogroups.com Sent: Friday, August 24, 2012 2:57 AM Subject: Re: [Homebrew_PCBs] Re: Spray Etcher In article <k13l1h+40pi@eGroups.com>, cunningfellow <andrewm1973@...> wrote: > I would advise against it. > Acrylic is not suitable material with CuCl. > (PE,PP, PVC are all OK) That's interesting because an awful lot of designs seem to use acrylic but I was advised against it by a supplier when I was looking to build a new tank (Still haven't built it) -- Stuart Winsor Only plain text for emails http://www.asciiribbon.org [Non-text portions of this message have been removed]
Re: Spray Etcher
2012-09-10 by jcarlosmor
Hi All, Any update on DIY spray ecthing systems, or at least about the suitable commercial pumps? Regards. --- In Homebrew_PCBs@yahoogroups.com, "cunningfellow" <andrewm1973@...> wrote:
Show quoted textHide quoted text
> > > > > David wrote: > > > > Hi All, > > > > Has anyone tried making this? > > > > http://www.instructables.com/id/Printed-Circuit-Board-PCB-Sprayer-Machine/?ALLSTEPS > > > > It looks very interesting!! > > > > 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 pressure pump is pressure relived AFTER > going outside the tank with tiny little flimsy > connectors. > > See > > http://www.prototrains.com/etch2/etch2.html > > Where his spray etcher had an accident with large > barbed fittings and hose clamps. > > and imagine how much fun it would be to have that > image at 3 min 21 sec into the video on the > OUTSIDE of the tank. > > If you are going to spend 100s of $ on building > one, follow Adams build. You will get good > results with the fan nozzles and motorised PCB. > > If you only want small boards and spending $40 > sounds like more fun, just be patient. I am > working on my write up. >
Re: Spray Etcher
2012-09-10 by cunningfellow
I've just built another one for the purpose of documenting it. I will finish taking photos and write up the whole thing this weekend. The whole thing takes between 5 and 10 hours to build and cost between $50 and $100. Thats for tank, motors, sprayers PCB holder - the lot. Just add FeCl3 or CuCl and a power supply. --- In Homebrew_PCBs@yahoogroups.com, "jcarlosmor" <jcarlosmor@...> wrote:
Show quoted textHide quoted text
> > > > > Hi All, > > Any update on DIY spray ecthing systems, or at least about the suitable commercial pumps? > > Regards. > > > --- In Homebrew_PCBs@yahoogroups.com, "cunningfellow" <andrewm1973@> wrote: > > > > > > > > > David wrote: > > > > > > Hi All, > > > > > > Has anyone tried making this? > > > > > > http://www.instructables.com/id/Printed-Circuit-Board-PCB-Sprayer-Machine/?ALLSTEPS > > > > > > It looks very interesting!! > > > > > > > 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 pressure pump is pressure relived AFTER > > going outside the tank with tiny little flimsy > > connectors. > > > > See > > > > http://www.prototrains.com/etch2/etch2.html > > > > Where his spray etcher had an accident with large > > barbed fittings and hose clamps. > > > > and imagine how much fun it would be to have that > > image at 3 min 21 sec into the video on the > > OUTSIDE of the tank. > > > > If you are going to spend 100s of $ on building > > one, follow Adams build. You will get good > > results with the fan nozzles and motorised PCB. > > > > If you only want small boards and spending $40 > > sounds like more fun, just be patient. I am > > working on my write up. > > >
Re: Spray Etcher
2012-09-13 by psykhon@yahoo.com
About conical nozzles not having an uniform etch, Im not sure how much this is a problem, Bungard uses it on their splash center/xl machines and they claim a 100 microns (4mils) resolution. Just see the video. However full cone nozzles are not the same as the one used on the instructables, those produce a mist and a serious cone should produce a much greather particle size. Cunningfellow, Im looking foward to see your writeup! --- In Homebrew_PCBs@yahoogroups.com, "cunningfellow" <andrewm1973@...> wrote:
Show quoted textHide quoted text
> > > > > David wrote: > > > > Hi All, > > > > Has anyone tried making this? > > > > http://www.instructables.com/id/Printed-Circuit-Board-PCB-Sprayer-Machine/?ALLSTEPS > > > > It looks very interesting!! > > > > 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 pressure pump is pressure relived AFTER > going outside the tank with tiny little flimsy > connectors. > > See > > http://www.prototrains.com/etch2/etch2.html > > Where his spray etcher had an accident with large > barbed fittings and hose clamps. > > and imagine how much fun it would be to have that > image at 3 min 21 sec into the video on the > OUTSIDE of the tank. > > If you are going to spend 100s of $ on building > one, follow Adams build. You will get good > results with the fan nozzles and motorised PCB. > > If you only want small boards and spending $40 > sounds like more fun, just be patient. I am > working on my write up. >