[Homebrew_PCBs] Fuser as Laminator - Result
2004-02-08 by Stefan Trethan
Hi all, Good news, the Fuser works perfectly. I have set it to 160 degree C (measured) and it worked not very well the first time. (i let the board through
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Re: [Homebrew_PCBs] UV Light Box Bulbs
2004-02-08 by Zoran A. Scepanovic
Zdravo kirilian2351, Sunday, February 8, 2004, 12:55:43 AM, ti rece: k I am wanting to build a UV light box. I have read as many internet k articles as I
UV Exposure lamp
2004-02-08 by twb8899
A low cost method for exposing dry film photoresist is to use a 300 watt quartz lamp. I purchased a complete fixture with lamp for less than $10 (US) and it
RE: RE: [Homebrew_PCBs] Photoresist
2004-02-08 by José
Thank you very much, I have receibe your answers. Off course, I will tell you the results. I will take me a time, because I first need the UV lamp. I have
Re: [Homebrew_PCBs] Photoresist
2004-02-08 by Stefan Trethan
... But with silver nitrate you get no resist, it is just the color . the gelatin is not washed off where there is no silver nitrate.... Ask the screen
Re: [Homebrew_PCBs] Photoresist
2004-02-08 by Adam Seychell
... Here are two introductory links on positive resists. http://dot.che.gatech.edu/henderson/introduction_to_dnq-novolac__resists.htm
Re: [Homebrew_PCBs] Photoresist
2004-02-08 by Leon Heller
... From: José To: Sent: Sunday, February 08, 2004 3:13 AM Subject: [Homebrew_PCBs] Photoresist
Re: UV Light Box Bulbs
2004-02-08 by kirilian2351
I don t know how I missed the previous discussion on this topic, but I did. It seems as if the mercury vapor and blacklight methods are the easiest to do.
Re: [Homebrew_PCBs] UV Light Box Bulbs
2004-02-08 by Adam Seychell
goto http://groups.yahoo.com/group/Homebrew_PCBs/ and search UV light sources question (without quotation marks) We has discussion recently on this. Fact is,
Photoresist
2004-02-08 by José
Dears, I have a cuestion: I would like to make my own photoresist. Someone knows a home-method? Regards, José from Argentina ... De: Ben H. Lanmon
Re: UV Light Box Bulbs
2004-02-08 by Ben H. Lanmon
I use the Sylvania F15T8/BLB Blacklite tube. In my setup I am using (4) of these tubes. My exposure time I use is about 5 mins. does work with less time. Ben
Re: [Homebrew_PCBs] UV Light Box Bulbs
2004-02-08 by Leon Heller
... From: kirilian2351 To: Sent: Saturday, February 07, 2004 11:55 PM Subject: [Homebrew_PCBs] UV
UV Light Box Bulbs
2004-02-07 by kirilian2351
I am wanting to build a UV light box. I have read as many internet articles as I could find on the subject. Some articles will recommend certain bulbs while
Re: [Homebrew_PCBs] TT testing
2004-02-07 by Stefan Trethan
well, at least one thing went pretty well today... the temperature controller is operating. just one transistor and a trimmer resistor needed, works good with
Re: [Homebrew_PCBs] TT testing (Was Model of laminator used)
2004-02-07 by Stefan Trethan
I would like to make some semi-scientific testing of this stuff. due to the more recent problems i really need to do the testing, no way around. what do you
Re: Model of laminator used
2004-02-07 by rescme1
I was going to use the photo-method as most of my stuff is in smd but ever since I got this perfected I think I m gonna stay with the toner method. The key
Re: [Homebrew_PCBs] Re: Model of laminator used
2004-02-07 by Derryck Croker
... Not at all bad - this is probably the best anyone will get with this sort of laminator. Less fiddly than the photo resist route as well, which was my
Re: Of Ink Jets and Such
2004-02-07 by pebo festus
ok intruder, maybe this link will help, http://www.media.hut.fi/julkaisut/diplomityot/1735.html?language=en
Re: [Homebrew_PCBs] Re: Of Ink Jets and Such
2004-02-07 by pebo festus
the glycerin keeps the ink from drying to fast, i would guess the glycol keeps it from freezing. would be nice if they would have given her the percentage of
Re: [Homebrew_PCBs] copper tube via's for PCB prototyping
2004-02-07 by Dwayne Reid
... We use two different products for this: Trak Pins from Harwin and CopperSet from Multi-core. The Harwin trak pins are used for vias - it is a stick of
Re: copper tube via's for PCB prototyping
2004-02-07 by Dave Mucha
... be ... used ... looking ... soldering. ... I pulled up a board I did last year and it had over 300 pins, and about 25 thru holes. I had laid it on a piece
Re: [Homebrew_PCBs] Re: Of Ink Jets and Such
2004-02-07 by IntruderSat
http://palimpsest.stanford.edu/byform/mailing-lists/exlibris/1999/08/msg00224.html --
Re: [Homebrew_PCBs] Re: Of Ink Jets and Such
2004-02-06 by IntruderSat
On one old Print Cartridge (waterproof ink) label, I find this: Contains: Glycerin 56-81-5 Isopropyl alcohol 67-63-0 Any idea what that mean ? Why Glycerin ?
Re: [Homebrew_PCBs] copper tube via's for PCB prototyping
2004-02-06 by Dick Ballard
Many years ago Tektronix used this method in a small (3 inch?) rack mount scope module. There were many intermittent failures due to differential thermal
Re: [Homebrew_PCBs] copper tube via's for PCB prototyping
2004-02-06 by JanRwl@AOL.COM
In a message dated 2/6/2004 6:22:56 AM Central Standard Time, boyerj@uah.edu writes: What I m looking for are small copper tubes which are intended to be used
Re: [Homebrew_PCBs] Re: copper tube via's for PCB prototyping
2004-02-06 by Stefan Trethan
... I use the pins of old computer cpu sockets for this. they have a hell lot of pins and are of no good use anyway (if you don t need a cpu on your board).
Re: copper tube via's for PCB prototyping
2004-02-06 by Dave Mucha
... be ... used ... looking ... soldering. ... I have some of a similar pin as T-Tech SIP Sockets on order from Digi- key. They press into the DIP holes and
Adding Links
2004-02-06 by Steve
Please, everyone, feel free to add to the Links page. Try to add it within the appropriate folder (I ve already set up a bunch) or add one if there isn t
Re: copper tube via's for PCB prototyping
2004-02-06 by Steve
You should add these to Links under Plated Through Holes. Steve
Re: [Homebrew_PCBs] multiple emails
2004-02-06 by Stefan Trethan
On Fri, 6 Feb 2004 07:00:12 -0800, Dave Hylands ... me too... I really wonder why this is. Sometimes i get 3 copies of a group mail.
RE: [Homebrew_PCBs] copper tube via's for PCB prototyping
2004-02-06 by Dave Hylands
Hi Stefan, ... I got two copies of the original email, but only one copy of each reply. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/
Re: [Homebrew_PCBs] copper tube via's for PCB prototyping
2004-02-06 by DHC
And another one: http://www.contacteast.com/product/group.asp?parent_id=6804 ... From: DHC To: Homebrew_PCBs@yahoogroups.com Sent: Friday, February 06, 2004
Re: [Homebrew_PCBs] copper tube via's for PCB prototyping
2004-02-06 by Stefan Trethan
... Did only I get the mail two times or all? i regularly get group mails 2 or three times the exact copy, wonder if this is a fault on my side or on the far
Re: [Homebrew_PCBs] copper tube via's for PCB prototyping
2004-02-06 by DHC
How about: http://www.t-tech.com/materials/throughhole/ Cheers, Darcy Australia ... From: Ande_3 To: Homebrew_PCBs@yahoogroups.com Sent: Friday, February 06,
copper tube via's for PCB prototyping
2004-02-06 by Ande_3
All, I m trying to track down a PCB prototyping item and need some help. What I m looking for are small copper tubes which are intended to be used for PCB vias
copper tube via's for PCB prototyping
2004-02-06 by Ande_3
All, I m trying to track down a PCB prototyping item and need some help. What I m looking for are small copper tubes which are intended to be used for PCB vias
Re: Model of laminator used
2004-02-06 by rescme1
I use the toner transfer method with magazine paper and it works pretty decent. I use an unmodified GBC-95 but I also use one more step. I print (on a HP-5P
Re: [Homebrew_PCBs] Re: Dissapearing Tracks in deveoper
2004-02-05 by Stefan Trethan
... Not if you print it mirrored. ST
Re: [Homebrew_PCBs] Re: Dissapearing Tracks in deveoper
2004-02-05 by Leon Heller
... From: To: Sent: Thursday, February 05, 2004 9:52 AM Subject: Re: [Homebrew_PCBs] Re:
Re: [Homebrew_PCBs] Re: Dissapearing Tracks in deveoper
2004-02-05 by alan.metcaf@tiscali.co.uk
Hi All Am I missing something here? surely if the print is turned over then one way or the other the circuit will be wrong. Regards Alan To:
Re: [Homebrew_PCBs] trace width for high currents , freq
2004-02-05 by Stefan Trethan
On Thu, 5 Feb 2004 02:19:42 +0000 (GMT), jagjot singh ... there are two parameters, one is the heat generated and the other one is the voltage drop. obviously
Kepro now D&L Products, Inc
2004-02-05 by Ben H. Lanmon
Just came across this. D & L Products is now the old Kepro line, Dalpro for short. www.dalpro.net They do not carry equipment now but do sell parts for the old
Re: Dissapearing Tracks in deveoper
2004-02-05 by Ben H. Lanmon
... solution ... Did a search for fotoboard since I was not familar with it. Seems to be a UK product and I am in the USA. Found a site that said it only
Re: Dissapearing Tracks in deveoper
2004-02-05 by Ben H. Lanmon
... T5 /BLB ... I use 15 watt blacklight tubes, they work fine, normally expose about 5 mins.
Re: Dissapearing Tracks in deveoper
2004-02-05 by Ben H. Lanmon
... trial ... it ... no ...
Re: Dissapearing Tracks in deveoper
2004-02-05 by Ben H. Lanmon
... may ... hit Yes the printed side should be towards the board, if you had it the other way your image would be reversed also from how you designed if unless
Re: Dissapearing Tracks in deveoper
2004-02-05 by Ben H. Lanmon
... resist ... Would not think it is too short exposure time if all the resist is coming off when developed. Sounds more like his image and the transparency is
trace width for high currents , freq
2004-02-05 by jagjot singh
Hi friends , Thank you so much for the reply . I was wondering how do you actually calculate the width of the trace specially for high currents ( say 30A ) and
Re: Dissapearing Tracks in deveoper
2004-02-05 by tboneuk_2000
... I use a 13 ... Your ... Heelo you wonderfull people I am pleased to anounce that I have had sucess, a fully exposed, developed and etched board. To all
Re: [Homebrew_PCBs] Re: Dissapearing Tracks in deveoper
2004-02-05 by Leon Heller
... From: tboneuk_2000 To: Sent: Thursday, February 05, 2004 12:28 AM Subject: [Homebrew_PCBs]