TechnicalKid

congratulations, you now have certainly a new (interested) follower -- NSA --...

thanks

does the panel get black when a beam of laser hits it or do you have to fill the engraving with color?

well I've got a sponge and a dry cleaner. I prefer the sponge but when I'm too tired to go to the bathroom in order to wet the sponge I use the dry cleaner :)

No, all the voltages have the same ground potential, if you try to wire them in series you effectively short them out.

hey, looks great! I like it

Because it looks cool

WOW ! that's nice

Thanks, i'llhave to check them out

I can't precisely tell you how much it costs, I used old bearings I had lying around, The epoxy cost about 5 $ but you can use it over and over again!

Thank you

Jea, that's my point of view as well, you can buy things for a couple of bucks on ebay, but you can also take some time and have fun building it. !

I left the cap on in order to protect the clean bearing from any dust that may fall into it during the built. Read the notes on the pictures. I mentioned that

I used what I had at home and washing the bearing just takes 5 - 10 minutes

I´ve only printed the top layer with a laser printer, the film for the solder stop mask got printed on an inkjet printer.usually I only use an inkjet printer and it works as well.

In German also is like so. An because It is apart from the other text I thought that you mean " so the capacitor...." beacuse I thought so i´ve totally forgotten about the english word also :)

Mistakes fixed :)by the way are you german? because you wrote Also

Great idea!

Yes but i´ve got acetone at home and it works quick and clean so I use it

Yes i think so too thank you

thank you

Thanks

you can buy the printable films on amazonfor inkjet printersfor laser printers

Thank you, but i´m actually just a teenager who likes to experiment with all kind of electronics ;)

That´s the reason why I have decidet to start etching with sodium persulfate

depending on the rectifier module you use

I understand ;)

What do you mean with "???"

Thank you !

Posted it on Google+https://plus.google.com/116527196500823463195?hl=de

Nice Job

hi, can you upload the board files?

I´m sorry, I have not seen your comment.I´ve added the schematic in step 2

yes you have to use a relay :)

The power of an Arduino wont be enough, In your case I would use something like a Lithium Batterie which can deliver the needed current.