Re: [SPAM] [Homebrew_PCBs] Re: HELP: UV Light box
2008-06-07 by kabowers@NorthState.net
... There was a nice set of plans in September 2007 issue of Everyday Practical Electronics magazine Vol.36 No.9. It was called a Programmable Flextimer .
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Re: [Homebrew_PCBs] HELP: UV Light box
2008-06-07 by René Eskesen
Hi I m making one, the range is from 1 sec to 99m99s there is a LCD, 3 buttons start/stop, min and sec + buzzer. It will be finished in the next comming week.
Gerber view print panelize
2008-06-07 by Lee Studley
Hi, I wanted to know your opinions on a good low cost or free program to panelize/print accurate 1:1 panels of PCB layers for my diy pcbs. I like to take the
[SPAM] [Homebrew_PCBs] Re: HELP: UV Light box
2008-06-07 by Howard
... anything ... a ... is good for ... Hi Leon Well if you would like to design one that would be great!! look forward to hearing from you soon. Thanks Howard
Re: [Homebrew_PCBs] HELP: UV Light box
2008-06-07 by John Coppens
On Sat, 07 Jun 2008 14:21:18 -0000 ... UV exposure not being too critical, maybe the easiest thing would be to look around for some cheap mechanical timer like
Re: [SPAM] [Homebrew_PCBs] Re: HELP: UV Light box
2008-06-07 by Leon
... From: Howard To: Sent: Saturday, June 07, 2008 4:04 PM Subject: [SPAM] [Homebrew_PCBs] Re: HELP:
Re: HELP: UV Light box
2008-06-07 by Howard
... week ... one ? ... buzzer ?? ... to start ... Hi Thats why i would want it to have a shut off relay just looking around the net at the mo! Howard
Re: [Homebrew_PCBs] HELP: UV Light box
2008-06-07 by Leon
... From: Howard To: Sent: Saturday, June 07, 2008 3:21 PM Subject: [Homebrew_PCBs] HELP: UV Light
HELP: UV Light box
2008-06-07 by Howard
Hi all I need a timer for my uv light box that i have just made this week range from about 0 to 10 mins would do the trick. Anyone got any diagrams and pcb
PCB construction help
2008-06-07 by steve kibort
Hello, I am looking for someone who can help me build some some very simple PC boards. These boards would be used to install lighting in N scale model trains.
Re: hobby market for dry film photoresist ?
2008-06-07 by Andrew
... Adam, I am more than happy to go halvesies and take a roll. Also would be keen to go halvesies on soldermask if you are keen to buy some of that too.
Re: [Homebrew_PCBs] Tin - Plating
2008-06-07 by Amr Amer
Is Their is a way to constructing Liquid from the chemicals that exist in the market for tin && for connecting vias through double surface board . it will be
Seeking help from anyone using Autocad INVENTOR
2008-06-07 by SRY
Need help in getting printed output. Thanks. southernry_n@yahoo.com
Re: [Homebrew_PCBs] Tin - Plating
2008-06-06 by DJ Delorie
... It is called Liquid Tin http://www.delorie.com/pcb/liquidtin/
Re: hobby market for dry film photoresist ?
2008-06-06 by javaguy11111
Been there and doing that right now. Since I tried this I have had a total of 26 orders since my first order on January 26. The first 100 foot roll went
Re: [Homebrew_PCBs] Tin - Plating
2008-06-06 by Amr Amer
What is the name of the bottle for Liquid Tin . could any one upload photo for board that has been Tinned by this Liquid . By the way , i remember that my
Re: hobby market for dry film photoresist ?
2008-06-06 by jmercer1820
Hi Adam I have just started out with PCBs. I live in Sydney, Australia. I would be interested in obtaining a small amount. Since reading all your helpful info
hobby market for dry film photoresist ?
2008-06-06 by Adam Seychell
I was thinking of buying a box of photoresist for myself, but won t have much need for two 500 foot x 12 wide roles. So I m curious if there would be a market
Re: [Homebrew_PCBs] Re: Out-of-date pre-coated boards
2008-06-06 by DJ Delorie
... Or just get a step transmission gauge and calibrate your exposure.
Re: [Homebrew_PCBs] Re: Out-of-date pre-coated boards
2008-06-05 by Matthew Smith
Quoth Andrew at 2008-06-06 08:46... ... Thanks Andrew. The moral of this story is, therefore, to run a test strip on every batch of stock. Have a small strip
Re: Out-of-date pre-coated boards
2008-06-05 by Andrew
... Matthew - it is kinsten stuff I had that I found to have lost a lot of sensitivity and a little bit of contrast when many year out of date. However
Re: [Homebrew_PCBs] Out-of-date pre-coated boards
2008-06-05 by Russell Shaw
... Beware of swimming pool NaCO3 as it seems to be contaminated with something;)
Re: [Homebrew_PCBs] Out-of-date pre-coated boards
2008-06-05 by Adam Seychell
... I think the resist was Macdermid brand, negative active. I got a roll of it several years ago and apply it myself. Because I develop the PCB almost
Re: [Homebrew_PCBs] Out-of-date pre-coated boards
2008-06-05 by Leon
... From: Adam Seychell To: Sent: Thursday, June 05, 2008 9:53 AM Subject: Re: [Homebrew_PCBs]
Re: [Homebrew_PCBs] Out-of-date pre-coated boards
2008-06-05 by Matthew Smith
Quoth Adam Seychell at 2008-06-05 18:23... ... Adam - I ll fire the same question back at you - with which brand did you have this specific problem - Kinsten?
Re: [Homebrew_PCBs] Out-of-date pre-coated boards
2008-06-05 by Adam Seychell
... They could be a different brand/formula photoresist. could you explain what problems you had ? Is it negative or positive resist ? Was it a exposure,
Re: [Homebrew_PCBs] Re: HELP: Ammonium persulfate
2008-06-05 by Matthew Smith
Quoth Howard at 2008-06-05 17:36... ... Hey, we all have - that s why we re here! -- Matthew Smith Smiffytech - Technology Consulting & Web Application
Re: [Homebrew_PCBs] Re: HELP: Ammonium persulfate
2008-06-05 by Leon
... From: Howard To: Sent: Thursday, June 05, 2008 8:50 AM Subject: [Homebrew_PCBs] Re: HELP:
Re: HELP: Ammonium persulfate
2008-06-05 by Howard
... easier ... from ... hydroxide. ... Hi Thank you, i think i got a lot to learn! Howard G7LQY
Re: [Homebrew_PCBs] Re: HELP: Ammonium persulfate
2008-06-05 by Matthew Smith
Quoth Howard at 2008-06-05 17:20... ... Sodium hydroxide. On an international forum, it can sometimes be easier to use standard chemical symbols rather than
Re: HELP: Ammonium persulfate
2008-06-05 by Howard
... that mercuric ... about two ... Hi Please forgiv me but what is NaOH ? Howard G7LQY
Re: [Homebrew_PCBs] HELP: Ammonium persulfate
2008-06-05 by Leon
... From: Howard To: Sent: Wednesday, June 04, 2008 3:53 PM Subject: [Homebrew_PCBs] HELP: Ammonium
Re: [Homebrew_PCBs] HELP: Ammonium persulfate
2008-06-05 by Matthew Smith
Quoth Howard at 2008-06-05 00:23... ... I have just fished the old lemonade bottle from under my bench in which I used to store partially used ammonium
Re: [Homebrew_PCBs] "How to succeed the first time with ultra-small QFN packages"
2008-06-05 by Leon
... From: Matthew Smith To: Sent: Thursday, June 05, 2008 12:08 AM Subject: [Homebrew_PCBs] How to
"How to succeed the first time with ultra-small QFN packages"
2008-06-04 by Matthew Smith
Hi Folks I know that under-chip pads were mentioned recently, so I thought that I would pass on this link from the TimeNuts mailing list: Article: How to
Re: [Homebrew_PCBs] Tin - Plating
2008-06-04 by DJ Delorie
... I ve never heated it, seems to work OK. No mention of heating on the bottle either.
HELP: Ammonium persulfate
2008-06-04 by Howard
Hi all Now i have been out of making Projects and PCB S for some yrs now and have just got back into doing it, god what have i missed ?. I need to make about 3
Re: [Homebrew_PCBs] Tin - Plating
2008-06-04 by Leon
... From: KeepIt SimpleStupid To: Sent: Wednesday, June 04, 2008 2:25 PM Subject: Re:
Re: [Homebrew_PCBs] Tin - Plating
2008-06-04 by KeepIt SimpleStupid
I like re-flow solder much better. I haven t tried my process with the lead-free solder yet, but I suspended the board in peanut oil and heated it. Then I
Re: [Homebrew_PCBs] Tin - Plating
2008-06-04 by JanRwl@AOL.COM
In a message dated 6/3/2008 6:02:58 P.M. Central Daylight Time, dj@delorie.com writes: I just soak the board in Liquid Tin (MG Chemicals) for a few
Re: screen printing
2008-06-04 by jcarlosmor
The only advice I can give to you is... do not try that. If you are using the UV screen printable inks from Bungard you are using the pro stuff specially
Re: Out-of-date pre-coated boards
2008-06-03 by Andrew
... Leon, At least with the brand I have they will still work years out of date. The issue is that they loose a lot of sensitivity and a little bit of
Re: [Homebrew_PCBs] Tin - Plating
2008-06-03 by DJ Delorie
I just soak the board in Liquid Tin (MG Chemicals) for a few minutes.
Re: [Homebrew_PCBs] Tin - Plating
2008-06-03 by Leon
... From: Amr Amer To: Sent: Tuesday, June 03, 2008 4:02 PM Subject: [Homebrew_PCBs] Tin - Plating
Tin - Plating
2008-06-03 by Amr Amer
I am sorry , i tried to understand from the messages in the group how to do tin-plating for the copper of the board after etching but i didn t understand . any
Out-of-date pre-coated boards
2008-06-03 by Leon
I ve just noticed something that might be useful to other people using pre-coated boards. I was using up some rather old off-cuts while I waited for some new
Printer’s gel-like ink works on eve rything
2008-06-02 by Russell Shaw
http://www.zdnet.com.au/news/hardware/soa/Printer-s-gel-like-ink-works-on-everything/0,130061702,339289490,00.htm?omnRef=1337 Being UV cured, it could be a
Re: applying dry film photoresist
2008-05-31 by javaguy11111
You can go to www.pcbhobbyist.com for more information or send me a private message. No problems shipping to Australia. I have had 3 other orders from there so
Re: [Homebrew_PCBs] Printer Preferences
2008-05-31 by kabowers@NorthState.net
... Watch out for deals with an intorductory print cartridge. Back around Christmas time I bought an HP1022 (1200 dpi) with a full toner cartridge that would
Re: [Homebrew_PCBs] Re: applying dry film photoresist
2008-05-31 by Adam Seychell
... I agree, its good to know there is more than one way. If anyone wants to go try it out for them selves then they know the method isn t that critical. There