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Diaphragm and peristaltic pumps

Diaphragm and peristaltic pumps

2013-09-20 by Robin Whittle

If anyone is looking for diaphragm pumps, such as for vacuum hold-down
of flexible PVC sheet to press a phototool to a PCB for UV exposure, or
maybe for spraying etchant, this eBay seller in Hong Kong has quite a
selection.

The seller's categorized listing is:

  http://www.ebay.com/sch/haruyr_kb/m.html

but it can be hard to find the pumps.  By using the search facility on
this page, for "pump":

  http://stores.ebay.com/haruyr-kb/

quite a variety of pumps can be found:

  http://stores.ebay.com/haruyr-kb/_i.html?_nkw=pump&submit=Search

I bought one of these:

  http://www.ebay.com/itm/400569532731
  Diaphragm Pump Water/AIR Pump 12V DC 400L/H 1.2MPa for Aquarium Fish tank

I haven't tried it for a PVC flexible phototool hold-down system, but I
think it would be suitable.  I am only doing small PCBs and with the new
small source UV LED light source, I am happy using glass with foam
behind the PCB.

A search of eBay for "diaphragm pump" turns up 2,525 results and most of
them are too big and expensive for this application:


http://www.ebay.com/sch/i.html?_trksid=p2047675.m570.l1313&_nkw=Diaphragm+Pump&_sacat=0&_from=R40



  - Robin

RE: Diaphragm and peristaltic pumps

2013-09-20 by <andrewm1973@...>

bought one of his $17 vacuum pumps to make a new frame a while ago. Looks the part but have not used it in anger yet



--- In Homebrew_PCBs@yahoogroups.com, <homebrew_pcbs@yahoogroups.com> wrote:

If anyone is looking for diaphragm pumps, such as for vacuum hold-down
of flexible PVC sheet to press a phototool to a PCB for UV exposure, or
maybe for spraying etchant, this eBay seller in Hong Kong has quite a
selection.

The seller's categorized listing is:

http://www.ebay.com/sch/haruyr_kb/m.html

but it can be hard to find the pumps. By using the search facility on
this page, for "pump":

http://stores.ebay.com/haruyr-kb/

quite a variety of pumps can be found:

http://stores.ebay.com/haruyr-kb/_i.html?_nkw=pump&submit=Search

I bought one of these:

http://www.ebay.com/itm/400569532731
Diaphragm Pump Water/AIR Pump 12V DC 400L/H 1.2MPa for Aquarium Fish tank

I haven't tried it for a PVC flexible phototool hold-down system, but I
think it would be suitable. I am only doing small PCBs and with the new
small source UV LED light source, I am happy using glass with foam
behind the PCB.

A search of eBay for "diaphragm pump" turns up 2,525 results and most of
them are too big and expensive for this application:


http://www.ebay.com/sch/i.html?_trksid=p2047675.m570.l1313&_nkw=Diaphragm+Pump&_sacat=0&_from=R40



- Robin

Re: [Homebrew_PCBs] RE: Diaphragm and peristaltic pumps

2013-09-20 by Todd F. Carney / K7TFC

Go to Instructables and search for "vacuum pumps." There's a lot of projects for various type of pumps, including a reversible tire-pump like piston pump, and a DIY diffusion pump for pulling a very hard vacuum (like interplanetary space kind of vacuum). Lots of different ideas for and sizes of pumps.

Todd
------------------------------------------------------------------------------------
K7TFC / Medford, Oregon, USA / CN82ni / UTC-7 (PDT)
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Show quoted textHide quoted text
On Fri, Sep 20, 2013 at 8:31 PM, <andrewm1973@...> wrote:

bought one of his $17 vacuum pumps to make a new frame a while ago. Looks the part but have not used it in anger yet



--- In Homebrew_PCBs@yahoogroups.com, <homebrew_pcbs@yahoogroups.com> wrote:

If anyone is looking for diaphragm pumps, such as for vacuum hold-down
of flexible PVC sheet to press a phototool to a PCB for UV exposure, or
maybe for spraying etchant, this eBay seller in Hong Kong has quite a
selection.

The seller's categorized listing is:

http://www.ebay.com/sch/haruyr_kb/m.html

but it can be hard to find the pumps. By using the search facility on
this page, for "pump":

http://stores.ebay.com/haruyr-kb/

quite a variety of pumps can be found:

http://stores.ebay.com/haruyr-kb/_i.html?_nkw=pump&submit=Search

I bought one of these:

http://www.ebay.com/itm/400569532731
Diaphragm Pump Water/AIR Pump 12V DC 400L/H 1.2MPa for Aquarium Fish tank

I haven't tried it for a PVC flexible phototool hold-down system, but I
think it would be suitable. I am only doing small PCBs and with the new
small source UV LED light source, I am happy using glass with foam
behind the PCB.

A search of eBay for "diaphragm pump" turns up 2,525 results and most of
them are too big and expensive for this application:


http://www.ebay.com/sch/i.html?_trksid=p2047675.m570.l1313&_nkw=Diaphragm+Pump&_sacat=0&_from=R40



- Robin


Re: [Homebrew_PCBs] RE: Diaphragm and peristaltic pumps

2013-09-25 by David Pickering

Thanks Andrew
Just ordered one from your last entry for just over £6, cant go wrong at that price.
Going to mod a manual pump chamber
will let you know results
Regards




________________________________
Show quoted textHide quoted text
 From: "andrewm1973@..." <andrewm1973@...>
To: Homebrew_PCBs@yahoogroups.com 
Sent: Friday, 20 September 2013, 21:31
Subject: [Homebrew_PCBs] RE: Diaphragm and peristaltic pumps
 


  
bought one of his $17 vacuum pumps to make a new frame a while ago.  Looks the part but have not used it in anger yet 


--- In Homebrew_PCBs@yahoogroups.com, <homebrew_pcbs@yahoogroups.com> wrote:


If anyone is looking for diaphragm pumps, such as for vacuum hold-down
of flexible PVC sheet to press a phototool to a PCB for UV exposure, or
maybe for spraying etchant, this eBay seller in Hong Kong has quite a
selection.

The seller's categorized listing is:

http://www.ebay.com/sch/haruyr_kb/m.html

but it can be hard to find the pumps.  By using the search facility on
this page, for "pump":

http://stores.ebay.com/haruyr-kb/

quite a variety of pumps can be found:

http://stores.ebay.com/haruyr-kb/_i.html?_nkw=pump&submit=Search

I bought one of these:

http://www.ebay.com/itm/400569532731
Diaphragm Pump Water/AIR Pump 12V DC 400L/H 1.2MPa for Aquarium Fish tank

I haven't tried it for a PVC flexible phototool hold-down system, but I
think it would be suitable.  I am only doing small PCBs and with the new
small source UV LED light source, I am happy using glass with foam
behind the PCB.

A search of eBay for "diaphragm pump" turns up 2,525 results and most of
them are too big and expensive for this application:


http://www.ebay.com/sch/i.html?_trksid=p2047675.m570.l1313&_nkw=Diaphragm+Pump&_sacat=0&_from=R40



- Robin

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