Re: New guy, looking for process improvement help
2013-01-20 by w9ran
... Thanks very much for sharing your experience and suggestions. Just knowing the melting point puts a different light on things -- I d mostly been concerned
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Re: Adobe's older CS2 programs now free
2013-01-19 by jackinnj
I have to chuckle as that s the version I am using now. I got the Lite version free with an Epson Scanner in the 1990 s, and managed to get all the upgrades
Re: Homemade pcb
2013-01-18 by Jim
... You can try laser toner transfer. I have not done anything as fine as TQFP but you can see my double sided board project last summer using toner transfer
Re: Homemade pcb
2013-01-18 by tda7000
If you want to do very fine pitch with toner transfer, you will need good transfer media like Pulsar pro paper or Vinyl as was mentioned in some topics here
Re: [Homebrew_PCBs] Homemade pcb
2013-01-18 by Mitch Davis
... Hello Hari, welcome to the group. Here is the way I make PCBs at home. It works well and I can make PCBs in an hour:
Re: [Homebrew_PCBs] Homemade pcb
2013-01-18 by Leon Heller
... http://forums.parallax.com/showthread.php/137896-Making-PCBs-at-home Leon -- Leon Heller G1HSM
Re: [Homebrew_PCBs] Homemade pcb
2013-01-18 by Hari Hendaryanto
hi vincentm thanks for reply i think i ll give a try on toner transfer since the materials is not too hard to find. is it good for very tiny traces/pads?
Re: [Homebrew_PCBs] Homemade pcb
2013-01-18 by Vicent Colomar Prats
You can do a laser print and toner transfer way. Or, if you have acces to positive sensitized boards and muriatic acid, print in transparencies and develop
Re: [Homebrew_PCBs] Eagle PCB board layout
2013-01-18 by Boots Hughston
In Eagle you have to place your components yourself. Once you have done that then you can run the auto router. Order of performance: Design your circuit. Run
Re: [Homebrew_PCBs] Adobe's older CS2 programs now free
2013-01-18 by David Mitchell
Interesting... Maybe not so free after all, despite all appearances:
Homemade pcb
2013-01-18 by Hari Hendaryanto
hi, first of all, i d like to thank to moderator for approving me joining here :) my name is hari, i live in indonesia, jakarta, i work for telecommunication
Re: [Homebrew_PCBs] Adobe's older CS2 programs now free
2013-01-17 by lists
In article , ... Thanks for the link, very useful stuff. -- Stuart Winsor Only plain text for emails
Adobe's older CS2 programs now free
2013-01-17 by Robin Whittle
I understand that the programs of the Creative Suite 2 are now available for free: http://www.adobe.com/downloads/cs2_downloads/index.html These are for
Re: PDF editor Question.
2013-01-16 by tda7000
I had to do this just the other day. I used GIMP to flip the image and then print it. GIMP is free and I already had it installed. Neither Foxit, Sumatra or
Re: PDF editor Question.
2013-01-16 by smilingcat90254
If you have a gerber file then translating to bmp file or something else, then you might want to consider using a product called ViewMate. I like it. I can
Re: New guy, looking for process improvement help
2013-01-16 by smilingcat90254
Hi Bob, In my quest to find a repeatable and accurate imaging and to make a reasonable PCB, I ve tried numerous photographic paper with toner transfer. I ve
Eagle PCB board layout
2013-01-16 by AJ
I am completely new to PCB design, I put together a schematic for a class project for a SMD FM transmitter. Everything looked great but when I switched over
Re: [Homebrew_PCBs] PDF editor Question.
2013-01-16 by Boots Hughston
If you use Eagle you can Mirror in the print section Sent from my iPhone ... [Non-text portions of this message have been removed]
Re: [Homebrew_PCBs] PDF editor Question.
2013-01-16 by Robin Whittle
PDF viewers and print-to-PDF printer drivers for Windows. Hi Keith, Thanks for pointing out: http://www.cutepdf.com I have been using the free (as in free
Re: [Homebrew_PCBs] PDF editor Question.
2013-01-16 by Robin Whittle
Hi Mike, I suggest using the Inkscape vector graphics program. It is open-source, runs on Windows, Linux, Mac etc. http://inkscape.org I have also used a
Re: [Homebrew_PCBs] PDF editor Question.
2013-01-16 by kabowers@...
... Get CutePDF; it s free. Installs as a virtual printer. When you are ready to print, select CutePDF as the printer. Select printer properties = Advanced =
Re: PDF editor Question.
2013-01-16 by Randall Morgan
Try pdfsam, pdf editor, or open office. Or Just google Open Sourc e PDF Editor. -- If you ask me if it can be done. The answer is YES, it can always be done.
PDF editor Question.
2013-01-16 by michael tenore
Hi! Does anyone know of a Freeeware or cheap PDF editor that I can use to flip the file contents to convert the image to Mirror image. My prnter driver does
Re: [Homebrew_PCBs] Re: No HASL
2013-01-15 by Norm
... The plumber s flux is cleaned with water (and scrubbing!). I don t think alcohol will touch it. On the other hand, alcohol is required for rosin flux.
Re: No HASL
2013-01-15 by Mars Bonfire
I believe plumber s flux is typically based on zinc chloride. I always have to laugh when I pick up my tin of it from my plumbing kit and the can is labelled
RE: [Homebrew_PCBs] Re: No HASL
2013-01-15 by Rick Sparber
Wanliker, I m trying to understand where the flux ends up after soldering. I scrub the bare copper with a 3M pad to remove oxides, brush it with plumber s
New guy, looking for process improvement help
2013-01-14 by w9ran
Just joined this list, but I ve made PC boards (of varying degrees of crudeness)over most of my nearly 50 years as a ham. My interests are primarily fairly
Re: [Homebrew_PCBs] photoresist application
2013-01-14 by Todd F. Carney
Jeff, Well, I think some brave soul should experiment with it. Oxidation is only a problem prior to exposure. If the cover film were removed a few seconds
Re: No HASL
2013-01-14 by wanliker@...
I have been reading comments abut plating circuit boards and types of fluxes used. I have always been told, and firmly believe that the only flux to ever be
Re: [Homebrew_PCBs] Patent, storage & other info - Riston & negative dry film photoresists in general
2013-01-14 by Robin Whittle
Addenda: Jeff Heiss in the photoresist application thread mentioned the site which recommended leaving the polyester sheet in place for a while after
Patent, storage & other info - Riston & negative dry film photoresists in general
2013-01-14 by Robin Whittle
* 1969 US patent for Riston and the like. * Explanation of the role of the protective sheets. * Too narrow a light source may cause uneven exposure. * Delaying
RE: [Homebrew_PCBs] photoresist application
2013-01-14 by Jeff Heiss
The SEM images are great. I m left wondering what the time frame is regarding the oxygen exposure to resist. Minutes, hours? I suppose the oxygen
RE: [Homebrew_PCBs] Re: What size drill bits?
2013-01-14 by Rick Sparber
Chris, Yes, the second picture really helps. Thanks, Rick ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of chris
RE: [Homebrew_PCBs] Re: What size drill bits?
2013-01-14 by Rick Sparber
Chris, It would be really cool if it could be gyro stabilized. Rick ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of
RE: [Homebrew_PCBs] Re: What size drill bits?
2013-01-14 by Rick Sparber
Chris, Damn impressive! Rick ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of chris Sent: Sunday, January 13, 2013
Re: What size drill bits?
2013-01-14 by chris
and a quick video.. of the counterbalanced pulley mounted drill http://youtu.be/flufbYNz48c you can see the slight wobble that would be damped by a longer
Re: What size drill bits?
2013-01-14 by chris
Sorry second pic added.. in photos ... spiyda drill2 it just hangs like a plumb bob Chris
Re: [Homebrew_PCBs] photoresist application
2013-01-14 by Todd F. Carney
... Sorry, Folks. Wrong URL for the DuPont document. Here s the right one: http://www2.dupont.com/Imaging_Materials/en_US/assets/downloads/techtalk/TT1207.pdf
Re: [Homebrew_PCBs] photoresist application
2013-01-14 by Todd F. Carney
The cover sheet protects the resist from oxygen and from oxidizing the free radicals on which the photo-polymers depend. Here is an excellent document from
photoresist application
2013-01-13 by Jeff
Photoresist is shipped with a clear protective covering film on the top and bottom. The covering film is removed by the user before the photoresist is
RE: [Homebrew_PCBs] No HASL
2013-01-13 by Rick Sparber
Todd, I really like mopping the bare board with Solder Wick and my soldering gun. Goes fast and seems to work well. Of course, now that I have perfected my
RE: [Homebrew_PCBs] Re: What size drill bits?
2013-01-13 by Rick Sparber
John, I only recently started to use these tiny tungsten carbide end mills. They work much better than twist drills and I ve been told that they don t dull
RE: [Homebrew_PCBs] No HASL
2013-01-13 by Rick Sparber
ST, Do you mean like these? http://www.use-enco.com/CGI/INPDFF?PMPAGE=491&PARTPG=INLMK3&PMITEM=428-9020 Rick ... From: Homebrew_PCBs@yahoogroups.com
RE: [Homebrew_PCBs] No HASL
2013-01-13 by Rick Sparber
Eldon, Very good write up. Thanks, Rick ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Eldon Brown Sent: Sunday,
Re: [Homebrew_PCBs] No HASL
2013-01-13 by Andrew Leech
I used to make a lot of pcb s in-house at my last work, and for tinning them I had a frypan and one of the little portable gas stoves that works on disposable
RE: [Homebrew_PCBs] Re: What size drill bits?
2013-01-13 by Jeff Heiss
I would like to understand your setup but I am confused too. I viewed the picture. Is the drill/pole on a slide? Or is it just hanging from the pulley like
Re: [Homebrew_PCBs] No HASL
2013-01-13 by Eldon Brown
This what I posted to my blog in 2009, and have been using ever since. http://wa0uwh.blogspot.com/2009/11/tin-plating-with-solder.html Regards, Eldon Brown 73
Re: [Homebrew_PCBs] No HASL
2013-01-13 by Stefan Trethan
I m looking for a drill vice like that which can be used on it s side! All the ones here seem to have ears with slots to clamp them. You could put down lumps
Re: What size drill bits?
2013-01-13 by thb201
Rick: I take it then you approve of my selection of sizes ;-) Sorry, I should have mentioned in my post that I have several Dremels plus the small Dremel drill
RE: [Homebrew_PCBs] Re: What size drill bits?
2013-01-13 by Rick Sparber
Chris, I looked at the picture and am now more confused. Can you take the set up from the side? Thanks, Rick ... From: Homebrew_PCBs@yahoogroups.com