Making Your Own Silver
2005-12-03 by bob_ledoux
Run a roll of black and white film through some fixer solution (hypo). It will disolve the silver-based film emulsion. If you know a photographer who uses
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Re: cool-amp
2005-12-03 by bob_ledoux
These silver formulae remind us of how early photographers had to make the light sensitive emulsion, in a dark room, for their film or glass plates. ... and
Re: Stefan - I got an old laser printer to hack the fuser from!
2005-12-03 by lcdpublishing
Stefan, This one you will appreciate - please read. I was looking over the PCB for the printer trying to find the opto and the triac. I am studying it like
Milling fine geometries
2005-12-03 by Pete
Hi, Group! I teach at a university which recently bought a T-Tech Quick Circuit 5000 for student project fabrication. I m trying to mill a TQFP-100
Re: [Homebrew_PCBs] Solder Paste and Tinning Questions!
2005-12-03 by Mike Young
... From: Alan King ... I m really more interested in plating the holes, not just plating for plating s sake. Plating tin or solder in
Re: [Homebrew_PCBs] Solder Paste and Tinning Questions!
2005-12-03 by Alan King
... Which trace are you going to tin with electroplating? Most want the whole board tinned, without having to connect each trace seperately. It can be done,
Re: [Homebrew_PCBs] Solder Paste and Tinning Questions!
2005-12-03 by Mike Young
http://www.stencilsunlimited.com/solder_products.php $16 for a syringe of leaded or no-lead. It came packed with a freezer stay-cold pak, but UPS ground took 8
Re: [Homebrew_PCBs] Solder Paste and Tinning Questions!
2005-12-02 by Stefan Trethan
... I reckon most use it as a mailgroup, the web interface sucks... ... The needle isn t actually fine, it s rather large, and ideally short. Not easy to find
Solder Paste and Tinning Questions!
2005-12-02 by shollzc
Hey guys, I found this group a few days ago and really like it. it seems to be a little difficult to navigate through since I am used to a Forum Layout I
Re: [Homebrew_PCBs] Re: cool-amp
2005-12-02 by Jim Miller
so if you use solderpaste reflow you don t tin the rest of the traces? won t they succumb to oxidation? tnx jim ... From: derekhawkins
Re: [Homebrew_PCBs] Re: Stefan - I got an old laser printer to hack the fuser from!
2005-12-02 by Stefan Trethan
On Fri, 02 Dec 2005 19:40:20 +0100, lcdpublishing ... Yea, more or less. it isolated the thermisotor and pot and supply from mains, which isn t all designed to
Re: cool-amp
2005-12-02 by derekhawkins
... Think I paid around $60.00 for a 4 oz jar of Coolamp several years ago. It s very expensive. But yes, it seems to last forever since very little is needed.
Re: Stefan - I got an old laser printer to hack the fuser from!
2005-12-02 by lcdpublishing
Hi Stefan, THe printer is an HP2200dse. I will trace out the traces backwards from the power connect for the fuser. I looked over you schematic and I think I
Re: cool-amp
2005-12-02 by derekhawkins
... I know. Have several unopened packs. Tinnit is probably the most cumbersome and expensive option in the long run. Another mixed bag of chocolates . First
Re: [Homebrew_PCBs] Re: Stefan - I got an old laser printer to hack the fuser from!
2005-12-02 by Stefan Trethan
What model/brand printer is that? About the solid state relais, the right triac must be right between one of the fuser lamp wires and mains power, so if you
Re: Stefan - I got an old laser printer to hack the fuser from!
2005-12-02 by lcdpublishing
There are a number of large components on the Circuit board near the connection point to the fuser. Several, what I believe are solid state relays - a triac
Re: [Homebrew_PCBs] Re: cool-amp
2005-12-02 by Mike Young
Why is that, Mike? ... From: mikezcnc
Re: [Homebrew_PCBs] Re: cool-amp
2005-12-02 by Stefan Trethan
... Why? ST
Re: [Homebrew_PCBs] Re: cool-amp
2005-12-02 by Stefan Trethan
On Fri, 02 Dec 2005 16:21:27 +0100, derekhawkins ... Ok, thanks. I ve mailed my chemicals shop bout the prices for silver chloride
Re: cool-amp
2005-12-02 by mikezcnc
If I were you I would not use ammonia. Mike ... that will
Re: [Homebrew_PCBs] Re: cool-amp
2005-12-02 by Mike Young
Datak says about Tinnit: 4. After plating, the cirucit board will have chemical residues that will in time dull or corrode the plating. To neutralize and
Re: cool-amp
2005-12-02 by derekhawkins
... For what it s worth....I have a half bottle of Coolamp here, it was my tinning method of choice for a while. 4 to 5 year old tracks tinned with it now
Re: [Homebrew_PCBs] Stefan - I got an old laser printer to hack the fuser from!
2005-12-02 by Stefan Trethan
On Fri, 02 Dec 2005 14:47:10 +0100, lcdpublishing ... There must be a triac in there and a optocoupler, which are useful. But you could also use any solid
Stefan - I got an old laser printer to hack the fuser from!
2005-12-02 by lcdpublishing
Hi Stefan, My buddy gave me an old (about 3 years) laser printer. He believe the fuser is good so I might have a fuser to hack! I will start pulling the
JetStar film - photo of PCB
2005-12-02 by leon_heller
I ve just uploaded a photo of the PCB I produced with the JetStar film: Photo Albums Leon s jetstar The apparent discolouration on the right is due to
HP 1320 laser printer
2005-12-02 by badd_mouse
I m thinking about purchasing a HP 1320 laser printer. This printer has 1200 x 1200 dpi. Can anyone verify that this will do the job.
Re: [Homebrew_PCBs] cool-amp
2005-12-02 by Stefan Trethan
Did some reading, and found a german page that lists several plating and electroless plating recepies. The relevant ones are: Versilbern von Kupfer/Messing
[Homebrew_PCBs] cool-amp
2005-12-02 by Stefan Trethan
Hi, reading the cool-amp MSDS... it consists of 40-50% table salt, 35-45% limestone, under 10% silver chloride, and the rest non-hazardous chemicals (secret).
Re: [Homebrew_PCBs] First Success/Chemistry Question
2005-12-02 by Stefan Trethan
About the FeCl chemistry, try the links section. I sure have seen pages describing the reaction, but i don t have any URLS. If it isn t in the links try
Re: [Homebrew_PCBs] First Success/Chemistry Question
2005-12-02 by pinoy_nyc@yahoo.com
Hi, thank you for posting this info... do datak have a website where I can order? Mark E. Haase wrote: (The first part is not my question
First Success/Chemistry Question
2005-12-02 by Mark E. Haase
(The first part is not my question -- just an account of my success with fabbing a PCB. Skip to the asterisks to see my real question.) First off, thanks to
File - monthly.txt
2005-12-01 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: Samsung ML-2010 Laser Printer
2005-12-01 by bob_ledoux
I have the older ML-1740 printer that I use for toner transfer. It works very well, down to .010 wide traces. The toner in the factory supplied cartridges is
JetStar film
2005-12-01 by Leon Heller
I got my sample of the Mega Electronics JetStar film this morning, and tried it out on an existing PCB design, as promised. It worked very well! My printer is
Re: Screw Driver to Drill Chuck Adaptor
2005-11-30 by lcdpublishing
Derek, Your Forrest quote is accurate in two regards: 1) Quality, you never know what your going to get 2) The sizes of the bits your going to get! One set had
Re: Screw Driver to Drill Chuck Adaptor
2005-11-30 by derekhawkins
... Yes, I have both the 50 piece and 20 piece sets. Quality is good. However, not many sizes are useful for typical thru hole components. ... With apologies
Samsung ML-2010 Laser Printer
2005-11-30 by robertkardly
Is this printer worth getting, WalMart has it for $139.72 with a $50 mail in rebate.. it is supposed to have 1200x600dpi
Re: [Homebrew_PCBs] Paste!
2005-11-30 by Stefan Trethan
On Wed, 30 Nov 2005 12:39:40 +0100, Mike Young ... don t worry, they can take quite a beating. If you need top reliability and stuff
Re: [Homebrew_PCBs] Paste!
2005-11-30 by Leon Heller
... From: Mike Young To: Sent: Wednesday, November 30, 2005 11:39 AM Subject: Re: [Homebrew_PCBs]
Re: [Homebrew_PCBs] Paste!
2005-11-30 by Mike Young
A watched board never reflows . I ll time it next time, and calibrate the knob. I turned off the heat as soon as all pads popped , and let it cool
Re: [Homebrew_PCBs] Paste!
2005-11-30 by Stefan Trethan
On Wed, 30 Nov 2005 00:35:14 +0100, Mike Young ... That s not a terribly fast reflow. All profiles i ve ever seen were under 300s, with
Re: [Homebrew_PCBs] Where to buy cheap PCB
2005-11-30 by Evan Dudzik
I have paid mere pennies per square inch for good quality single or double-sided copper clad PCB from ebay auctions. ... [Non-text portions of this message
Where to buy cheap PCB
2005-11-30 by pinoy_nyc@yahoo.com
Hello. Do you know where I can buy cheap PCB in small quantities? ... Yahoo! Music Unlimited - Access over 1 million songs. Try it free. [Non-text portions of
Paste!
2005-11-29 by Mike Young
They shipped it by UPS-slow-boat-via-Panama-Canal, I think. Oregon to Chicago in 8 days. It took Lewis and Clark at least 20 times that long, so why am I
Re: Screw Driver to Drill Chuck Adaptor
2005-11-29 by lcdpublishing
This goes into the don t do as I do rule set, but, this is how I have been drilling my PCB holes and have not had any troubles with bits breaking. I use a
Re: Screw Driver to Drill Chuck Adaptor
2005-11-29 by Ray Dinwiddie
Yes: The Jameco part no. is 26702CE. ... to ... its ... 3 ... multiple ... the ... turned ... both ... Jameco ... shaft ... point. ... a ... I ...
Re: Screw Driver to Drill Chuck Adaptor
2005-11-29 by idaho_huckleberry
Is that Jameco part number 26702CE? http://www.jameco.com/Jameco/catalogs/c254/P255.pdf ... $30. ... low ...
Re: Screw Driver to Drill Chuck Adaptor
2005-11-29 by Ray Dinwiddie
Reading this series of posts begs my observations and solution to drilling small lot PCBs. I found that the runout on Dremel and its clones is too much for
Re: Screw Driver to Drill Chuck Adaptor
2005-11-29 by upand_at_them
Have you used these? I m curious, because almost everything from Harbor Freight is junk. Mike
Re: Screw Driver to Drill Chuck Adaptor
2005-11-29 by mikezcnc
they come in smaller packages for $6. The sizez are odd and few of the 0.8 or 0.9mm diameter. They know what you need but they are selling you all others too.