Synth-DIY Yahoo! Groups Archives

PCB by Photosensitive method

2013-11-19 by Ameer Khan

Dear friend,

I have been making PCB for my prototypes and test projects using Laser print & heat transfer method.

I was able to make PCBs using this method successfully , for tracks with good width.

now I propose to make PCB with some fine tracks, for which this method is not so successful and I propose to shift to photo sensitive method.

Here in India photo sensitised blakn PCB is not available or to get sensitising spray from abroad is not posible.

Can any one suggest from where I can get a detailed information for making the PCB photo sensitive, using easily available chemicals.

Thank you members

73

VU3SQM

Ameer khan

Re: [Homebrew_PCBs] PCB by Photosensitive method

2013-11-20 by James

Hi Ameer, Dry Film Photoresist is available on eBay. It's not very expensive and just a film sheet/roll so no trouble to send in the post.

In fact, here is a seller of it who is located in India for you...
http://www.ebay.in/itm/10X-Dry-Film-Photoresist-Developer-Resist-Remover-for-PCB-and-metal-etch-/231091995146?pt=LH_DefaultDomain_203&hash=item35ce28020a&_uhb=1#ht_1520wt_1141

I have written a document about how to use it easily without special equipment:
http://sparks.gogo.co.nz/dry-film-tips.pdf

It's quite easy and gives good results.

All you need is a clothes iron, and some sodium carbonate (Washing Soda) which you will find in some product in almost any grocery store in India I am sure, it is used for washing clothes.

Hope that helps!

On 20/11/13 04:26, Ameer Khan wrote:

Here in India photo sensitised blakn PCB is not available or to get sensitising spray from abroad is not posible.

Re: [Homebrew_PCBs] PCB by Photosensitive method

2013-11-20 by Ameer Khan

Dear James and other members,

Thank u very much for the quick response and information, especially the link to the seller of the dry film sheet in India.

Will keep you informed about the developments in this regard.

Thank u once again,

73s

VU3SQM

Ameer khan

----- Original Message -----

From: James

To: Homebrew_PCBs@yahoogroups.com

Sent: Wednesday, November 20, 2013 10:31 AM

Subject: Re: [Homebrew_PCBs] PCB by Photosensitive method

Hi Ameer, Dry Film Photoresist is available on eBay. It's not very expensive and just a film sheet/roll so no trouble to send in the post.

In fact, here is a seller of it who is located in India for you...
http://www.ebay.in/itm/10X-Dry-Film-Photoresist-Developer-Resist-Remover-for-PCB-and-metal-etch-/231091995146?pt=LH_DefaultDomain_203&hash=item35ce28020a&_uhb=1#ht_1520wt_1141

I have written a document about how to use it easily without special equipment:
http://sparks.gogo.co.nz/dry-film-tips.pdf

It's quite easy and gives good results.

All you need is a clothes iron, and some sodium carbonate (Washing Soda) which you will find in some product in almost any grocery store in India I am sure, it is used for washing clothes.

Hope that helps!

On 20/11/13 04:26, Ameer Khan wrote:

Here in India photo sensitised blakn PCB is not available or to get sensitising spray from abroad is not posible.

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