Re: Yag laser?
2003-06-11 by John Myszkowski
That is the idea, get rid of the resist. The laser would stop at the copper. Dangerous? No more than playing with lasers in the first place. Not if you use
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Re: Yag laser?
2003-06-10 by anode505
... light ... Not too sure if I d pulse here, depends on the power of the Yag ... which ... Dangerous! (I d use paint or a graphite spray) That way you are
Re: Yag laser?
2003-06-10 by John Myszkowski
In practice, the laser is always focused to do work. Otherwise the beam is too weak to burn through much. I tried to burn through styrofoam with and without
Re: [Homebrew_PCBs] Re: Yag laser?
2003-06-10 by Dave King
... We do use a hot wire cutter. It has two problems one is a practical cutting length of about 4 feet and for tapered or twisted shapes the result depends on
Re: Yag laser?
2003-06-10 by anode505
Beam divergance would kill you. THe beam will grow in size as it travels. If it grows, the engery is displaced over a bigger area, and will need more time to
Re: Yag laser?
2003-06-10 by anode505
True the G10 (called FR$ for some reason on a clad board) isn t smooth. But then a laser isn t perfect either. Yeah, you ll burn the substrate a bit (I
Re: [Homebrew_PCBs] Re: Yag laser?
2003-06-10 by Dave King
... I know this is really off topic for the group but have either one of you tried to cut say through a few feet of styrofoam? Always been curious if a laser
Re: [Homebrew_PCBs] Re: Yag laser?
2003-06-09 by Mike Putnam
... I have never tried using this method, although I have quite a bit of experience with lasers. Just off the top of my head, I see a problem. The copper is
Re: Yag laser?
2003-06-09 by anode505
Feedrates!!!! I m a CNC CO2 laser tech now. We can etch material. Its all power to speed ratios. ... up ... and ... can ... PTHs) ... Service.
Re: [Homebrew_PCBs] Yag laser?
2003-06-09 by Russell Shaw
It s just a matter of testing the energy required to burn thru the copper compared to burning thru the FR4. If (for example) it takes 1ms to burn thru the
Re: [Homebrew_PCBs] Yag laser?
2003-06-08 by Hans Wedemeyer
Well I posted a similar question and got the reply ... you will end up with a PCB jigsaw.... How are you going to stop the laser burning the FR4 material ? If
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-08 by Markus Zingg
... Adam Now that patent IS interesting - wow, I haven t studied closer, but I got the impression that the information is so precise that it should be possible
Yag laser?
2003-06-08 by anode505
Has anyone thought of a Yag laser for PCBs? I see people are actually milling the unwanted copper off the boards. Yags are great for copper (On CO2 lasers,
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-08 by adam Seychell
... That s interesting. I remember Tom once telling us how he knew a guy who patented a palladium system, and the magic ingredient was vanilla extract ,
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-08 by Markus Zingg
... Yes, of course. I added covers to all tanks, and take extreme care to follow the process specifications to the letter. ... Very intresting article! Too bad
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-08 by Markus Zingg
Stefan ... Thanks for the idea, but there are quite some office laminators which - even if slighly out of spec - happyly eat 1.5mm thik PCB s. So, IMHO such
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-08 by stefan_trethan@gmx.at
laminating: it should be possible to use a laser printer / copier fuser unit. simply construct a thermal controller for it or use the one in the printer if you
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-07 by adam Seychell
... Thanks for the price info. I d expected that price range. I remember once a friend looked into doing his own through hole plating using conventional
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-07 by Markus Zingg
... You are right, I am using palladium activation. The palladium is 200 EUR per 0.5 liter. That s expensive, but my 2.5 liter tank only needs 125ml per load.
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-07 by adam Seychell
... You do not mention an electroless copper bath ! If this is so then your process uses palladium activation , not electroless. Electroless copper involves
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-07 by Markus Zingg
Hi Adam ... Yes, they are through hole plated. :-) ... Mr. D. Bungard - is very helpfull. He is reachable on the phone and also answers e-mails (usually within
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-07 by Hans Wedemeyer
Markus, Another question.... How will you prevent the etching inside the newly through plated holes ? Hans W
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-07 by Hans Wedemeyer
Markus, It s looking good. Did you measure the thickness of the board before you started plating ? How much extra copper do you now have to etch away when you
Re: [Homebrew_PCBs] Homebrew through plating station - sucess!
2003-06-07 by adam Seychell
Very rewarding work. Are the boards through hole plated or just plated on the outside ? I only ask because I wasn t sure if you have the electroless up and
Homebrew through plating station - sucess!
2003-06-07 by Markus Zingg
Hi folks! I m a happy man! See the pictures of the first sucessfully through hole plated PCB on the page! http://www.myhome.ch/mzingg/pcbstuff/tps/ Click on
Re: [Homebrew_PCBs] plating anodes and power supply
2003-06-05 by Markus Zingg
Hi Adam, Thank you very much for your feedback. [snip] ... Ok, will try to get this. ... They are all stainless already. ... Thanks for the info about the PC
Re: [Homebrew_PCBs] Re: inkjet printing - test and conclusion
2003-06-05 by JGraham
since your a win guy, you can run cygwin and get all the neato gnu/linux stuff working on windows. It is a posix emulation layer for win9x/2k/xp/nt. It
Re: [Homebrew_PCBs] Re: inkjet printing - test and conclusion
2003-06-05 by Mike Putnam
... Stefan, Sorry, I am not runnning linux or unix so I cannot try out the program. Perhaps someone knows of a link for a windows HPGL converter? -Mike
Re: [Homebrew_PCBs] plating anodes and power supply
2003-06-05 by Adam Seychell
Yes, normal steel is a bad news around a copper acid plating tank. I only recognized this problem because I ve been through these mistakes myself. Suitable
Re: [Homebrew_PCBs] Adam Seychell, you are right! (was Homebrew through plating station)
2003-06-04 by stefan_trethan@gmx.at
whats a lamp regulator? do you mean a triac dimmer? if you have problems firing at low angles try using a voltage with a different phase angle for the firing
Adam Seychell, you are right! (was Homebrew through plating station)
2003-06-04 by Markus Zingg
Hi Adam, After some testing, it turned out that you were absolutely right. Not that I really would have doubht it - It came even worse in that the anode bags -
Conversion software links
2003-06-03 by Steve
I added the Matlab EPS to HPGL to a new folder in the Links section, Conversion Software.
Re: [Homebrew_PCBs] Re: inkjet printing - test and conclusion
2003-06-03 by stefan_trethan@gmx.at
thanks mike.. but this is unix software, my linux is not running now (because of hd problems). also i really don t know it it would work for that purpose. if
Re: [Homebrew_PCBs] Re: inkjet printing - test and conclusion
2003-06-03 by Mike Putnam
... Hi Stefan, Try the link below for a free program to convert postscript to hpgl. http://www.mathworks.com/support/ftp/toolsv4.shtml scroll down the page to
Re: [Homebrew_PCBs] Re: Homebrew through plating station - movie on site
2003-06-03 by Markus Zingg
Tom and others, I will get back with detailed information as soon as it makes sense. I updated my page http://www.myhome.ch/mzingg/pcbstuff/tps/ to give a
Re: [Homebrew_PCBs] Homebrew through plating station - movie on site
2003-06-02 by stefan_trethan@gmx.at
you aren t using a switching regulator? may be worth it.. ... -- +++ GMX - Mail, Messaging & more http://www.gmx.net +++ Bitte lächeln! Fotogalerie online
Re: [Homebrew_PCBs] Re: inkjet printing - test and conclusion
2003-06-02 by stefan_trethan@gmx.at
hi i have tried this with the plotter. i do disagree with the guys saying it will work with the staedtler 313 or 318 red. the line with, especially the
Re: Homebrew through plating station - rinsing
2003-06-02 by twb8899
... Hi Adam, We looked at every type of rinse system we could find. The cascaded rinse tanks are a great way to go but we didn t have the floor space and our
Re: inkjet printing - test and conclusion
2003-06-02 by grantfair2001
Hi Stefan- I followed your work on this project with interest. I hoped it would work, but I agree with you completely that it was worth the effort. I have
Re: [Homebrew_PCBs] Re: Homebrew through plating station - rinsing
2003-06-02 by Adam Seychell
... 7000 gallons (26500 liters) down to 75 gallons (280 liters) is a massive saving !! Had you thought about using counter flow rinse systems or sometimes
Re: Homebrew through plating station
2003-06-02 by John Myszkowski
Hi Markus, I can give you one experience from my past experience in the PCB industry many years ago. One problem we encountered, very rarely, but gave a lot of
Re: Homebrew through plating station - movie on site
2003-06-02 by twb8899
... movie ... asked ... Markus, That s an impressive tank system you made. I m also interested in the chemistry you will be using. Please provide more
Homebrew through plating station - movie on site
2003-06-02 by Markus Zingg
Hi folks I m still testing with water - the voltage regulator still get s too hot with low PCB motion speeds. Anyways, I created a little MPEG movie of the
File - monthly.txt
2003-06-01 by Homebrew_PCBs@yahoogroups.com
Monthly Reminder, please read: Subject lines: Remember to change the subject line if you are straying from the original thread. Please change the subject line
Re: [Homebrew_PCBs] Homebrew through plating station
2003-06-01 by stefan_trethan@gmx.at
thanks. DIY means Do It Yourself. i found out these english guys call their baumarkt DIYstore. i initially wanted to buy it for desoldering. i have a
Re: [Homebrew_PCBs] Homebrew through plating station
2003-06-01 by Markus Zingg
Hi Stefan ... That s strange. You really should try to find a better store then :-) ... Steinel is havine a homepage. You find the product along with the
Re: [Homebrew_PCBs] Homebrew through plating station
2003-06-01 by stefan_trethan@gmx.at
thanks for all the information. i wantet to get that steinel gun with the display some time ago. but the didn t have it.. they only had the newer model, it has
Re: [Homebrew_PCBs] Homebrew through plating station
2003-05-31 by Markus Zingg
Hi Stefan ... Hmm, I don t really agree on this one. If the load is good for 4 years with 100 PCB s a year this makes 400 four layer boards. I don t think that
Re: [Homebrew_PCBs] Homebrew through plating station
2003-05-31 by stefan_trethan@gmx.at
well, thanks for the information about rinsing etc. i would like to have one too, but really don t need. also the bungard starter chemicals pack is far too
Re: [Homebrew_PCBs] inkjet printing - test and conclusion
2003-05-31 by kenneth magers
if you can feed pc board thru some inkjet ink is not water soluble my lexmark 12a1970 is not waterbased im sure there are others also what about reverse print