TechnicalKid

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

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

thanks

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

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!

Thanks, i'llhave to check them out

Thank you

Thank you. I'm glad to hear, that I could Inspire someone to get out and build something. If you want, I would love to see the finished product in the comments. Good luck!

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

That's also a way of doing it, I just had to do it quick so I decided to take the cap off and rinse the bearing in acetone :)

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

Yes i think so too thank you

Great idea!

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

thank you

the circular traces are a experiment. I´ve tried to make a small heating element (wich actually works ;) ) I´ve made them with the on pcb coil designing tool of eagle.

Hi, thats a bit difficult because I bought most of the chemicals and tools in local shops.Are there any tools or chemicals you dont know how to get in your country ? I could do some research for you

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

Thank you

depending on the rectifier module you use

Thank you !

I understand ;)

What do you mean with "???"

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

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.

yes you have to use a relay :)