Re: [Homebrew_PCBs] terminology question:
2009-03-09 by DJ Delorie
What you re looking for is most likely called a ground plane flood and most EDA packages support it. In the sparkfun link, note that the GND pin in the
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terminology question:
2009-03-09 by Piers Goodhew
Hi All, What is the term for the process where your traces are simply outlined by etching, and as a result, most of the copper is left on the board, and you
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by Simao Cardoso
... The gold plating (electroplating) isn t that hard. Today it s used non hazard alkaline solutions of gold alloy in sodium thiosulfate. You can buy these
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by DJ Delorie
... A bit of googling says there s non-cyanide (i.e. high acid) processes available.
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by leon Heller
... From: DJ Delorie To: Sent: Sunday, March 08, 2009 6:19 PM Subject: Re: [Homebrew_PCBs] 1 and 3 mil lines
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by DJ Delorie
... Has anyone tried gold-plating at home? I think that would be impressive :-)
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by DJ Delorie
... PCB itself has command line options, which we use extensively in Makefiles to automate things like web pages, etch prints, and fab submissions. For
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by Simao Cardoso
Professional board houses (but not small ones) use pattern plating after negative print. They start with thin layer plain copper, leave the dry film where is
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by Stefan Trethan
I think if you plate it up afterwards it will widen again. Besides, you need to contact all traces for plating so it is impractical for real boards. Thinner
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by Adam Seychell
... What that a separate command line tool you used to generate the .grb, .drl and .pdf files from the .pcb file ?
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by DJ Delorie
... Thanks! That s one of the advantages of text-based file formats. I wrote a perl script to generate the *.pcb files from the given spacing, then used
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by Jim
... If you start out with VERY thin copper (say 1/10 the thickness of 1 oz copper) ... lay down a 1.5 mil resist and etch it ... drill holes ... activate holes
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by Adam Seychell
... That is an impressive sample of PCB testing artwork you created. I ll definitely try some of those one day.
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by Stefan Trethan
Yes i know, you already wrote at some point it s only reliable for short tracks. But even that i doubt, since the mechanics of etching shouldn t allow a track
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by Derward Myrick
... From: Adam Seychell To: Homebrew_PCBs@yahoogroups.com Sent: Saturday, March 07, 2009 2:46 PM Subject: Re: [Homebrew_PCBs] 1 and 3 mil lines . Adam this
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-08 by DJ Delorie
... Here s a bunch of spiral design files: http://www.delorie.com/pcb/spirals/ Let the one-upping begin!
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-07 by DJ Delorie
... I know with my HP laserjet and PS, when I print a line N thou across, I end up with a line N+1.67 thou across - the printer draws a row of dots
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-07 by Adam Seychell
... When PCB manufacture specifies a track/space width capability of X, then it should mean one can reliably create a PCB with any arbitrary pattern over a
Re: 1 and 3 mil lines
2009-03-07 by warrenbrayshaw
... Also the one labeld five mil ... Assuming the IC is a soic package with 0.050 pin spacing I measure the larger traces to be around 12 mil. This is the same
Re: 1 and 3 mil lines
2009-03-07 by Leon Heller
... The 3 mil and 5 mil tracks look about the same, and the 1 mil track looks about 2/3 the width of the others. Leon
Re: [Homebrew_PCBs] 1 and 3 mil lines
2009-03-07 by Stefan Trethan
Thanks for making the photo. Even allowing for the blurry image, the 1 mil line does not look one fifth of the width of the 5 mil line? I believe when you draw
1 and 3 mil lines
2009-03-07 by Derward Myrick
Stefan, Phill KAoHJBG, Leon and others that were intrested. On Monday, February 23, 2009 1:21 PM I sent the below message ... From: Stefan Trethan To:
Re: [Homebrew_PCBs] Re: CAD conversion, was Homebrewers/money
2009-03-05 by leon Heller
... From: for_si2003 To: Sent: Wednesday, March 04, 2009 11:40 PM Subject: [Homebrew_PCBs] Re: CAD
Re: [Homebrew_PCBs] Re: PCB prototyping
2009-03-05 by mlerman@ix.netcom.com
Somewhere in the $8700 range, IIRC. If you want the exact price, they will quote for you. Mark
Re: CAD conversion, was Homebrewers/money
2009-03-04 by garydeal
... Cadmover?
Re: CAD conversion, was Homebrewers/money
2009-03-04 by for_si2003
... And another button saying convert gerber to PCB. V http://referencdesigner.com
Re: New to Forum
2009-03-04 by roycepipkins
For this particular problem I recommend one-sided scissor cut boards. Etch each side separately. After you etch them, you can see through them to align them
Re: New to Forum
2009-03-04 by awakephd
... I should have added: the two parts of the process that have been least successful for me so far are aligning the top and bottom layers, and drilling the
Re: New to Forum
2009-03-04 by awakephd
... Welcome from another newcomer. Browse around through some old messages and through the various files and links, and you ll soon gather quite a lot of
Re: Do any of you homebrewers want to make some money
2009-03-04 by awakephd
... You mean yours doesn t do that?? ... Andy
About Myself
2009-03-04 by for_si2003
I live in US and design Schematics and PCBs especially high speed PCBs. I often have to design small two layer PCBs and it looks like I have landed at a good
Re: PCB prototyping
2009-03-04 by for_si2003
How much does a Accurate 360 from accuratecnc cost ? Thanks in advance Vikas
New to Forum
2009-03-03 by lineunderwaterservices
Hello Everyone, I am new to this forum and making PCBs for that matter. I know a little about electronics. I can read a schematic and solder a kit together for
Re: [Homebrew_PCBs] Do any of you homebrewers want to make some money
2009-03-03 by Adam Seychell
... I like your term turned :) Yea, it would be nice to have CAD program with a tool button saying convert schematic to Gerber file
Re: Do any of you homebrewers want to make some money
2009-03-03 by Steve
You might want to let people know approximately where you live. Which country, at least. Steve Greenfield
Re: Do any of you homebrewers want to make some money
2009-03-03 by paulstrotten
... to ... Hi email me files of list & I will see what I can do. Paul Strotten
Re: Porosity of laserjet ink...
2009-03-03 by James Newton
... Toner melts at different temperatures depending on the type of the printer. Most melt around 300 F so your 250 C hot plate should do the trick, if only
Re: [Homebrew_PCBs] Do any of you homebrewers want to make some money
2009-03-03 by Ed Smith
Let me take a look at what you need. Ed Smith w4eds@yahoo.com ... From: dvdljns Subject: [Homebrew_PCBs] Do any of you homebrewers want to
Do any of you homebrewers want to make some money
2009-03-03 by dvdljns
I have some schematics I need turned into the correct files to send to have boards made. will anyone do this. Or even make a board for me.
Re: Developer for Positive Resist
2009-03-03 by pcb.easy
Ben: Rooto is the brand that I use, and I bought it at Ace Hardware. Make sure that it is 100% Sodium Hydroxide (lye) and not the stuff that has aluminum
Re: [Homebrew_PCBs] Re: Porosity of laserjet ink...
2009-03-02 by Myc Holmes
The green film is identical to the old laser foil. It is a mylar film with a metalized fusible coating. Part of its success is just by remelting the toner
Re: Porosity of laserjet ink...
2009-03-02 by Nick de Smith
... the ... What temperature does this stuff melt at? I only ask ask we have a range cooker with a hot plate that runs about 250C - would that do? Not that
Re: Porosity of laserjet ink...
2009-03-02 by James Newton
... simple ... with ... etched ... very ... been ... note ... that ... Re-heat the PCB AFTER transfer to re-flow the toner and fill in the pinholes. --
RE: [Homebrew_PCBs] Re: Porosity of laserjet ink...
2009-03-02 by Joe Xerox
Hi, This is my first post here so I hope this works J I also use TT and I have the same problem. It isn t a big thing for me because I also use UV technique
Re: Porosity of laserjet ink...
2009-03-02 by pgdion1
Hi Nick, I haven t used the green TRF but I understand it works well. It applies an additional coating that sticks to the toner and fills the little pinholes
Re: PCB prototyping
2009-03-02 by rf33333
Hi Mark, Thank you very much for the answer – that is what I was looking for. A friend of mine (who has old LPKF C60) recommended to me Accurate 360
Re: PCB prototyping
2009-03-02 by rf33333
Hi Steve, I looked at fireballcnc, but it seems that there is no machine with even close parameters to the necessary for PCB. For DIY purposes they may be
Re: Developer for Positive Resist
2009-03-01 by Ben
The Rooto 1030 is carried by Ace Hardware Stores. It is listed as being 100% Sodium hydroxide. Maybe the Rooto will not have the metal pieces in it. Ben
Re: Developer for Positive Resist
2009-03-01 by Ben
... OK Thanks, I did find some Crystal Drano, Had thought I had seen before some drain cleaner had Sodium Hydroxide but I had looked at the liquid type before
Re: Developer for Positive Resist
2009-03-01 by pcb.easy
Red Devil no longer makes the 100% LYE crystals (THANK YOU METH HEADS) there is another brand called ROOTO crystals of Household 100% LYE drain opener this