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Old 21st January 2011, 12:39 PM   #11
viki_v2 is offline viki_v2  India
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i dont know abt any dealers, But i know one professional pcb manufacturer, And got my 70 micron single side copper layer pcb from him, very high quality. Went with the sizes i wanted and got it cut from him, If many are interested i can ask him for whole sheet and get it cut accordingly.
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Old 22nd January 2011, 04:25 AM   #12
Roushon is offline Roushon  India
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Quote:
Originally Posted by viki_v2 View Post
Well Guys,
I tried all types of pcb etching ways i found on INTERNET, so much of money spent on it, Trying to get the perfect track , But none of them was successful.

Toner transfer method is useful but not successful always. getting right type of paper is difficult, Even if you do ,purchase lot of it for future use. Then the right quality of laser print, oh god these cyber cafes never use original cartridges and then ironing .

But the best way i found is by photo resist film. It is wonderful.

No breaking sweat over improper tracks. I have etched many pcbs using this method, Even hairline tracks can be had with this method.

All it takes is 30 minutes and you have your pcb ready,
Thanks for the information. Every method of etching pcb is perfect as
long as we know the source of the raw materials and have the skill. So kindly
post the address (phone number) where the `photo resist films' are available
in Mumbai (India), that will be real help for anybody who would like to try.

Regards
Roushon.
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Old 22nd January 2011, 04:27 AM   #13
Roushon is offline Roushon  India
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Quote:
Originally Posted by viki_v2 View Post
i dont know abt any dealers, But i know one professional pcb manufacturer, And got my 70 micron single side copper layer pcb from him, very high quality. Went with the sizes i wanted and got it cut from him, If many are interested i can ask him for whole sheet and get it cut accordingly.
Once again, kindly post the address or phone number.

Thanks
Roushon.
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Old 22nd January 2011, 04:54 AM   #14
Roushon is offline Roushon  India
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Quote:
Originally Posted by viki_v2 View Post
i dont know abt any dealers, But i know one professional pcb manufacturer, And got my 70 micron single side copper layer pcb from him, very high quality. Went with the sizes i wanted and got it cut from him, If many are interested i can ask him for whole sheet and get it cut accordingly.
I am willing to purchase two single sided and two double sided copper clad
board of size 1 foot x 1 foot each . More in the future. All for personal hobby
use.

Thanks
Roushon.
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Old 22nd January 2011, 04:58 AM   #15
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Although, I am just reader this moment. I must thank you for such a great information.I have subscribed this thread.
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Old 22nd January 2011, 10:22 AM   #16
Roushon is offline Roushon  India
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Originally Posted by Aucosticraft View Post
Although, I am just reader this moment. I must thank you for such a great information.I have subscribed this thread.
Thank you very much for subscribing. Please also contribute whenever and
whatever bit of information you have. Even if you feel it is negligible but
it could be valuable for somebody else.

I am a hobbyist for more than 20 years. I know it is a real pain when one plans
on something and get hold of no (good) spare parts. Now I am in mid career
and have enough money to import and so I do. But this is not correct. I
know things are available in India, but we do not know where.

Regards
Roushon.
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Last edited by Roushon; 22nd January 2011 at 10:24 AM.
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Old 22nd January 2011, 10:47 AM   #17
viki_v2 is offline viki_v2  India
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Yes of course we can make good diy pcb's if all the needed material is available , But not all are able to to get that. And to say how many times you might have tried to master it.

Toner transfer method needs a lot of trial and error , which even i have tried.
It was time when i searched desperately for the perfect glossy paper, then the best laser print, then perfect ironing to transfer, and to say i have wasted lots of paper many prints and cleaned pcbs repeatedly truing to get a good track.

But photoresist film is used in professional manufacturing. It gives the perfect track you can dream abt.

I am telling this for many diyers who are still running for all the pieces to fall in one place, as i have done before.

About photoresist film , it is not available at any outlet or store in India.
It is imported by professional manufacturers for their use, and to say none of them would share even a sq.inch of it.

i got mine from a friend who is setteled in china, And has export business to India. I got a small quantity as sample.

But if i do ever need it again i will have to purchase a whole roll.
We can get it if we do a group buy.

And for ref my pcbs etched by photo resist method
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Old 22nd January 2011, 12:00 PM   #18
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Quote:
Originally Posted by Roushon View Post
Thank you very much for subscribing. Please also contribute whenever and
whatever bit of information you have. Even if you feel it is negligible but
it could be valuable for somebody else.

I am a hobbyist for more than 20 years. I know it is a real pain when one plans
on something and get hold of no (good) spare parts. Now I am in mid career
and have enough money to import and so I do. But this is not correct. I
know things are available in India, but we do not know where.

Regards
Roushon.
very rightly said.

there is a thread more. much alike. [INDIA] Chassis, knobs, PCB makers

also I am currently located @ pune but did my schooling from mumbai. I have lot of trouble here. trust me, here big shops too dont have good inventery of components. still all shopkeepers here go and buy from mumbai. I am also intrested in building database of component suplier from pune.

I was looking for a good quality pot and preferably resistive plastic. for long lasting. or some good brands like alps or broun. but nothing available here.

if you can also post some addresses of supplier who can courier components.
I got such one battery dealer. he caters all kind of small battery needs and rates are good too.

Dont worry I am here with you.
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Old 22nd January 2011, 12:09 PM   #19
viki_v2 is offline viki_v2  India
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Well i dont have any addresses right now but may be i can try as i know a shop at lamington rd . the owner is a good friend of my best friends father. Could try him for help. any ways i get original transistors from him, and if lucky even some valves
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Old 22nd January 2011, 04:00 PM   #20
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"......About photoresist film , it is not available at any outlet or store in India.
It is imported by professional manufacturers for their use, and to say none of them would share even a sq.inch of it......."

Visit a shop selling screen printing material. They have photo sensitive sheets and also a liquid that can be applied on pcb's. Expose it to UV light or direct sunlight and develop it in a darkroom and you should get good results.
You will need to make a negative or positive as the case might be , on lith film that he would also have. Ask them for details or search the Net. I've used that long ago but don't remember details. The photo sensitive film was called 5 Star film and was red in colour. I can't really remember what I did with it but it wasn't for pcb's.
Try to Google it.
Cheers.

Edit. I'll check it out one of these days. The shops I went to are still there.
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Last edited by ashok; 22nd January 2011 at 04:02 PM.
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