Re: [Homebrew_PCBs] Re: UV Light Box Bulbs
2012-01-20 by Russell Shaw
... I ve been using a HPW125 for years, 800mm from the pcb and at the focal line of a cylindrical parabolic reflector made from aluminium sheet. It gives good
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RE: [Homebrew_PCBs] Re: UV Light Box Bulbs
2012-01-20 by Boman33
I bought my HID lamp at eBay. Remember to buy a socket too. I am not using it for PCB production since I have a 400W UV light source. Always use eye
Re: UV Light Box Bulbs
2012-01-20 by Jeff
I see that some here are using HID mercury lamps for mask/photoresist exposure. Where can HID mercury lamps be obtained? Do they give better results than
Re: [Homebrew_PCBs] Re: Silver Ink
2012-01-20 by Donald H Locker
99% without further purification if you read Donald. -- *Plain Text* email
RE: [Homebrew_PCBs] Re: Silver Ink
2012-01-19 by Boman33
There is also the option to use some old silverware? It is 92.5% silver. It is just an extra step to purify it. Bertho =========================== From:
Re: [Homebrew_PCBs] Re: Silver Ink
2012-01-19 by John Anhalt
Silver is currently $29 per ounce on the spot market, but you can t buy it for that. $2.00 per gram for silver acetate sounds like bargain. John ... From:
Re: Silver Ink
2012-01-19 by Dave
... Is that lab grade or technical grade? There s a HUGE price difference between the 99% purity stuff, and the 99.9% purity stuff. :-) For that matter, has
Re: [Homebrew_PCBs] Silver Ink
2012-01-19 by Donald H Locker
The supporting pdf (with the experimental method) was well written and complete. There is sufficient info there to allow replication of the ink and possibly
GMP Photonex-Sync235
2012-01-19 by Robert
Hi all, I wanted to let everyone know there is a really good deal on what s probably the best quality desktop laminator available under $2,000 anywhere today.
Re: [Homebrew_PCBs] Silver Ink
2012-01-18 by David Mitchell
By the way, I did actually access the article, but it really does not provide any useful additional information beyond the info in the supporting data PDF.
Re: [Homebrew_PCBs] Re: Silver Ink
2012-01-18 by Mark Lerman
The silver acetate seems to go for about $2 USD per gram from legitimate sources, less from ebay. They mix 1 g with 2.5ml of ammonium hydroxide plus .2ml
Re: [Homebrew_PCBs] Silver Ink
2012-01-18 by Andrew Hakman
Do you have the link to the article / what journal it s in? I can probably get it for you, but I thought for sure someone else would have access first. Andrew
New file uploaded to Homebrew_PCBs
2012-01-18 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File :
Re: Silver Ink
2012-01-18 by studleylee
Very Nice!!!! Thanks David et al for the sources!!! I think these traces could be further electro-plated if needed. -Lee Studley
Re: [Homebrew_PCBs] Silver Ink
2012-01-18 by David Mitchell
Look under the supporting documentation page: http://pubs.acs.org/doi/suppl/10.1021/ja209267c there is a PDF with the experimental methods described.
RE: [Homebrew_PCBs] Silver Ink
2012-01-18 by MIKE DURKIN
There must be a reprint out there somewhere ... To: Homebrew_PCBs@yahoogroups.com From: mlerman@ix.netcom.com Date: Wed, 18 Jan 2012 09:53:07 -0500 Subject:
Re: [Homebrew_PCBs] Silver Ink
2012-01-18 by Benjamin Blumer
Ick. It d be a crying shame to spend that much money. Unfortunately, I m traveling and only have my iPad with me and the school s VPN can t be set up on iOS
[Homebrew_PCBs] Silver Ink
2012-01-18 by Mark Lerman
Anyone interested in sharing the $35 USD cost of accessing the article Andrew found regarding silver acetate ink? Mark
Re: Hot air station help, please
2012-01-18 by tda7000
What exactly do you want to know? I own a ZD-912 and some parts might be the same.
Hot air station help, please
2012-01-17 by cristianbip
I m looking for the ZD939B schematic diagram, please. The heater section will suffice. Cristian
Re: [Homebrew_PCBs] Re: Real silver ink - can be used in inkjets?
2012-01-17 by Andrew Leech
Hi Steve, Sorry about that, I had no idea the threads were tracked differently. Thanks for letting me know, I certainly won t do it again! Best Regards, Andrew
Re: Real silver ink - can be used in inkjets?
2012-01-17 by AlienRelics
Please, please do NOT post a new thread by replying to another thread. Yahoogroups shows it attached to the other thread, even though you ve changed the
Re: [Homebrew_PCBs] Real silver ink - can be used in inkjets?
2012-01-17 by Andrew Leech
I never looked for a full article as such, although this page had a little more info: http://www.thecuttingedgenews.com/index.php?article=53719 Here it is:
Re: [Homebrew_PCBs] Real silver ink - can be used in inkjets?
2012-01-16 by Mark Lerman
Were you able to access the full article? Mark
Real silver ink - can be used in inkjets?
2012-01-16 by Andrew Leech
This sounds rather simple, like you could perhaps make it yourself? http://www.gizmag.com/particle-free-silver-ink/21122/ Andrew
Re: Update on Eagle class in Olympia
2012-01-16 by AlienRelics
The story is that Newark bought Eagle from a German company, and that for a short time the old website will be up. New update: A cross check has been done, and
Re: Update on Eagle class in Olympia
2012-01-15 by Robert
Eagle 6.1 is available, but just in case I saved the install package for earlier version 5.11 (some ULPs are only compatable with previous versions, almost
Update on Eagle class in Olympia
2012-01-13 by Steve Greenfield
The instructor for the class just informed me that V5.11 is available from: http://web.cadsoft.de/ And that you don t need to bring a computer to the first
Eagle PCB CAD class tonight in Olympia, WA
2012-01-13 by Steve Greenfield
OlyMEGA, an Olympia, WA area maker group, is having the first of a series of free classes in using Eagle schematic capture and PCB making software.
Re: [Homebrew_PCBs] Energy for developing
2012-01-12 by DJ Delorie
... Here s an example: http://www.thinktink.com/stack/volumes/voli/store/specs/m115spec.htm The key parameter is energy in mJ/cm2 (millijoules per square
Re: [Homebrew_PCBs] Energy for developing
2012-01-12 by Slavko Kocjancic
... With data on this page and One I already have the exposure needed lies somewhere in 350 to 1000mJ/cm2. So here is my asumption. For worst film (1000mJ/cm2)
Energy for developing
2012-01-12 by Slavko Kocjancic
Hello... Does someone know what energy is nedded to develop photoresist? I thinking to make an atacchment to CNC to make something like
RE: [Homebrew_PCBs] Re: Photoplotter/Imagesetter
2012-01-12 by Rodney Jackson
At 263 Quid for the optional stand.... the machine must be a couple of bob more than that. Good looking machine tho’ Rod From: Homebrew_PCBs@yahoogroups.com
Re: Photoplotter/Imagesetter
2012-01-12 by Robert
This might work pretty good too, Raster Image Processing (RIP) software that can turn any desktop printer into an imagesetter. Wasatch SoftRIP Small Format
Re: Photoplotter/Imagesetter
2012-01-12 by Robert
this looks good too, not sure what the cost is though... http://www.positivityltd.co.uk/desktop-imagesetting-systems.htm Robby
Tin Whiskers
2012-01-11 by Russell Shaw
More tin whisker stuff. It s a largish download, but this report is definitely worth a look (especially the pictures): August 2011 Lead-Free Electronics
Where to start? EpsonT25
2012-01-11 by samsagazzzz
Hi guys, im planning to modify a inkyet to print directly the PBCs. I found at low cost Epson T25 Pinter, someone know some good doc about how made the
Re: Soldering
2012-01-11 by blue_eagle
I am in the US. Illinois. Brian
NT:DLP projector [Homebrew_PCBs] Re: Dry Film Laminator
2012-01-10 by MIKE DURKIN
Im looking for one now ... hopefully with only a burned out bulb... If it has a color wheel ... just remove it? To: Homebrew_PCBs@yahoogroups.com From:
Re: Making black transparencies
2012-01-10 by psykhon@yahoo.com
Ligth intensity in my experience is only a problem on white solder mask, for evrething else, if in this case the proyector is too dim, you just expose a
Re: [Homebrew_PCBs] Soldering
2012-01-10 by Stefan Trethan
It would be most useful if you would include your location. ST
RE: [Homebrew_PCBs] Re: Dry Film Laminator
2012-01-10 by Boman33
Very interesting concept. I wonder what the chemical is. Bertho ===================== From: Robert Sent: Monday, January 09, 2012 21:45 oh, here s a better
Re: Dry Film Laminator
2012-01-10 by Robert
thaat would be interesting to see what result is possible... this short video presentation I found on the PLUS site explains the DLP mirror chip fairly well
RE: [Homebrew_PCBs] Re: Dry Film Laminator
2012-01-10 by MIKE DURKIN
I was thinking of replacing the bulbs with some .... in a DLP projector .... true, you need to change the focal length ... But if an image that was meant to be
Soldering
2012-01-10 by blue_eagle
I would like to offer my services in soldering prototypes, under 100 units. I am certified as an IPC-610 and J-STD trainer, I certify others on how to solder.
Re: Dry Film Laminator
2012-01-10 by Robert
oh, here s a better link I just found: looks interesting maybe... http://www.flexobag.us/ Robert
Re: Dry Film Laminator
2012-01-10 by Robert
yes, led s could work, I ve seen several on youtube and in image search when typing uv exposure unit on google. typing imagesetter brings some other
RE: [Homebrew_PCBs] Dry Film Laminator
2012-01-10 by MIKE DURKIN
There are some 3W 402nm led s that should work .... Mike KC7NOA To: Homebrew_PCBs@yahoogroups.com From: oceanartscasino@yahoo.com Date: Tue, 10 Jan 2012
Dry Film Laminator
2012-01-10 by Robert
my first step to fabricating quality boards... today the UPS truck left my new: GMP Photonex-Sync235 9 Laminator with 4 internally heated silicon rollers and
[Homebrew_PCBs] Re: Making black transparencies
2012-01-09 by Andrew Leech
I really like this idea myself. Could even try the route of a diy lcd projector: http://users.telenet.be/cool_things_with_fresnel_lenses/LCD_gettingstarted.htm