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Step 14Thats it!
Well, thats it!
***UPDATE!***
You may need to diffuse the light using some milky acetate or white transparent plastic as sometimes it gives over/under exposure on the board edges but not too bad. Exposure time has a sweet spot of around 4 mins using standard board.
****************
You should have a nice neat and portable exposure unit. There are several improvements you could make to your unit such as:
Interlock switch so the lamps come on after the lid is closed.
Electronic timer?
An IEC mains inlet so you can disconnect the mains lead.
More tubes!
Maybe white tubes on another switch to help with alignment?
You could also make this a double sided exposure unit with another box.
This box literally cost me no more than £30 to make. The nearest commercial equivalent is £150 so quite a saving!
I hope you have success with this box if you use it, you can make really good PCBs with the correct equipment and good quality fibreboard.
Enjoy!
- Sam.
***UPDATE!***
You may need to diffuse the light using some milky acetate or white transparent plastic as sometimes it gives over/under exposure on the board edges but not too bad. Exposure time has a sweet spot of around 4 mins using standard board.
****************
You should have a nice neat and portable exposure unit. There are several improvements you could make to your unit such as:
Interlock switch so the lamps come on after the lid is closed.
Electronic timer?
An IEC mains inlet so you can disconnect the mains lead.
More tubes!
Maybe white tubes on another switch to help with alignment?
You could also make this a double sided exposure unit with another box.
This box literally cost me no more than £30 to make. The nearest commercial equivalent is £150 so quite a saving!
I hope you have success with this box if you use it, you can make really good PCBs with the correct equipment and good quality fibreboard.
Enjoy!
- Sam.
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Jan 28, 2010. 8:34 AMrpcook
says:
Nicely done! Thank you.
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Feb 1, 2010. 3:05 PMTvmender (author)
says:
Thank you too for viewing my first instructable! Glad you liked it.
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