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Old 12th October 2012, 02:05 PM   #3421
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Originally Posted by boyet0173 View Post
Hi abetir,

What paper did you use to transfer the toner in the pcb?

Regards,
Boyet
Ideally ( some) people use printer photo paper . But there are several types and you should be sure you are printing on the correct side. Some low cost photo paper works very well.

Next best inexpensive option is shiny paper used to print leaflets for products/promotional brochures and glossy magazine pages. The paper should not be too thin.
You will need to test the paper. If it works well and comes from a glossy magazine then reserve it for all your pcb printing needs !

Paper should be typically 70 to 80 gsm ( like most paper used for normal printing).

Nothing is cast in stone. Try out what ever is available. Something will work !
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Old 12th October 2012, 09:20 PM   #3422
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Perfect DIY...well almost...
Nothing stops you to assemble on the copper side, it will work as well and anybody looking inside your box would think it is double sided.
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Old 12th October 2012, 10:13 PM   #3423
shaan is offline shaan  India
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Yeah!

That's true!
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Old 12th October 2012, 11:13 PM   #3424
abetir is offline abetir  Philippines
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Nothing stops you to assemble on the copper side, it will work as well and anybody looking inside your box would think it is double sided.
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Old 13th October 2012, 01:15 PM   #3425
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Nothing stops you to assemble on the copper side, it will work as well and anybody looking inside your box would think it is double sided.
Do anybody thoughts deeply change the way sounds your system ?
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Old 15th October 2012, 03:18 AM   #3426
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Originally Posted by abetir View Post
..pretty close Shaan..
It's actually an A4 copy paper wrap.

boyet,

I was told the A4 size stickers being sold at National Bookstore is ideal for use on toner transfer method (you won't be needing the sticker of course just take the "backing paper"), better yet check on the "Staples" brand. I dunno' if you can find the "wrapper" that I've used, it was actually for office use, but I guess any glossy type paper that can tolerate heat without peeling off, should be good enough for the job.

In laserjet toner transfer method, "practice makes perfect"
Hi abetir,

Thank you for the info. I will checked on the National Bookstore your recommendation. Thanks Again.

Regards,
Boyet
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Old 15th October 2012, 03:23 AM   #3427
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Originally Posted by ashok View Post
Ideally ( some) people use printer photo paper . But there are several types and you should be sure you are printing on the correct side. Some low cost photo paper works very well.

Next best inexpensive option is shiny paper used to print leaflets for products/promotional brochures and glossy magazine pages. The paper should not be too thin.
You will need to test the paper. If it works well and comes from a glossy magazine then reserve it for all your pcb printing needs !

Paper should be typically 70 to 80 gsm ( like most paper used for normal printing).

Nothing is cast in stone. Try out what ever is available. Something will work !

Hi ashok,

Thank you for answering my query.

Regards,
Boyet
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Old 15th October 2012, 05:01 AM   #3428
shaan is offline shaan  India
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Default SSA with servo...

This is my plan. Please comment...
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File Type: png SSA_SERVO.PNG (380.8 KB, 447 views)
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Old 15th October 2012, 06:30 AM   #3429
naf is offline naf  Indonesia
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This is my plan. Please comment...
Shaan, please fix bd 139/140 silkscreen component (rectangular symbol for metal surface) , for skilled builder this is easy but for newbie like me this will make hell...this happen to me. Wrong ECB pin just by following bd139/140 silkscreen component
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Old 15th October 2012, 06:42 AM   #3430
shaan is offline shaan  India
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Hi naf.

The only problem I think is when one doesn't know the pin alignments of the TO126 package, which happened in your case too. That is why I pointed the "E C B" to each of them. Knowing the pins of the BJTs is a basic requirement and I think if one places the transistors following the E C B as situated in the silkscreen then all will be well.

The rectangular symbol is for TO220 not TO126 coz my stupid PCB software don't have it. The picture is just to show what the final think will look like. I will remove the rectangles in the final version(which I am going to build myself too).
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