Comments for Arcol blog

Comment on Laser etching by casainho

casainho — Sat, 04 Sep 2010 22:19:07 +0000

I ended up not understanding. Did you paint the board with black paint and later used the laser on it?

What did laser for the paint? did it removed/burned the paint?

So the acid aren’t able to remove the paint from the board?

How did you do the holes for vias?

What minimal size for tracks can you get? 0.25mm? 0.1mm?

Thanks for sharing!! Good work!!

Comment on Laser etching by nophead

nophead — Sat, 04 Sep 2010 17:23:15 +0000

So did you laser etch the black paint?

Comment on Laser etching by Laszlo

Laszlo — Sat, 04 Sep 2010 16:40:52 +0000

I painted the boards in a factory where they paint electrical motors using spray and compressor.

I dont know the exact specification, and will not know before 28 of september due the “painting guy” is on vacation.

I will write it here, once I know myself too.

If you read on the net, others suggest simple black paint spray. We tried some more, but this one worked the best.

Sorry, I cant answer currently your question.

Best regards,
Laszlo

Comment on Laser etching by Spacexula

Spacexula — Sat, 04 Sep 2010 16:27:29 +0000

In the final process, how did you apply the black paint to the copper clad? I am missing something there, but WOW those boards look awesome. Please share more about the final process.

Comment on Heated bed controller by Laser etching « Arcol blog

Laser etching « Arcol blog — Sat, 04 Sep 2010 15:07:11 +0000

[...] I built my heated bed controller, it was time to create a PCB for it. Especially, because people had trouble to build the [...]

Comment on Heated bed controller by Arduino Mega & a character LCD. | Capolight Electronics Projects.

Arduino Mega & a character LCD. | Capolight Electronics Projects. — Thu, 12 Aug 2010 14:43:41 +0000

[...] such as displaying information about a heated bed. A good example and guide is can be found at Arcol’s blog. Also more info on the reprap wiki. I plan on eventually making something very similar but with a [...]

Comment on Mendel build progress — day 8 by tim beach

tim beach — Mon, 02 Aug 2010 22:35:01 +0000

Thank you

Comment on Heated bed controller by soapy

soapy — Sat, 31 Jul 2010 22:59:05 +0000

Where did you get the solid state relay from that handles decent current AC? I can only find 100V DC max units.

Comment on Heated bed v1.6 – Thermal insulating and more by soapy

soapy — Sat, 31 Jul 2010 22:48:14 +0000

I agree with Jacob, there are plenty of higher temperature resistant magnets around. Sure, they aren’t quite as strong as Nd but they will be stronger after a year or so of heating! Nd magnets also fail due to oxidation and exposure to water and water vapour, which is why they are coated in silver. I strongly suspect that the thermal stress will lead to that coating failing, too.

The heated bed arrangements you have done are great.

Comment on Guest Article: My heated bed modification (updated) by soapy

soapy — Sat, 31 Jul 2010 22:19:48 +0000

I’m not sure I’d use mains voltages on a heated table like that. High amperage DC gives more heating than AC, too.