Re: [Homebrew_PCBs] Gas Soldering Irons as hot-air pencils?
2004-01-20 by Leon Heller
... From: Chris Warnes To: Sent: Tuesday, January 20, 2004 3:33 PM Subject: [Homebrew_PCBs]
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Gas Soldering Irons as hot-air pencils?
2004-01-20 by Chris Warnes
Hi Guys, I am looking at options for a project I have underway, which unfortunately requires me to solder a 100pin TQFP surface mount component to a PCB (yet
Re: [Homebrew_PCBs] Re: UV light sources question
2004-01-20 by Leon Heller
... From: mikezcnc To: Sent: Tuesday, January 20, 2004 7:01 AM Subject: [Homebrew_PCBs] Re: UV light
Re: [Homebrew_PCBs] Re: Roll Tinning Machine
2004-01-20 by David Hopkins
St, The roller was made by a company that specialize in this You give them the steel rod and tell them what diameter you want. I don t know if it is the same
Re: UV light sources question
2004-01-20 by mikezcnc
Leon, how long does it take you to expose the PCB? Disco tubes (Black Light) are mentioned on the web all the time but I think they have the wrong wavelength
Re: [Homebrew_PCBs] UV light sources question
2004-01-20 by Leon Heller
... From: tboneuk_2000 To: Sent: Tuesday, January 20, 2004 1:12 AM Subject: [Homebrew_PCBs] UV
Re: Laminating and alignment
2004-01-20 by joshdewinter
For you guys that use the glue stick idea, do you mean that you put your two pieces up to the light to align them, then just dab a bit of hot glue between them
UV light sources question
2004-01-20 by tboneuk_2000
Hello all, I would like to make my own uv exposure box, but I am having some trouble locating a suitable tube. Could anyone tell me if replacement aquariam uv
Re: [Homebrew_PCBs] Re: Roll Tinning Machine
2004-01-19 by Stefan Trethan
On Mon, 19 Jan 2004 05:32:12 +1000, David Hopkins ... where did you get the silicone roller? do you think the one from a laser printer
Re: Toner Transfer - Large boards?
2004-01-19 by kg4wfx
Leon, I decided to just go and get a laminator, and it has worked well for my larger boards (and my smaller ones:) And works great for 2 sided. -Tony ...
Re: [Homebrew_PCBs] Re: Laminating and alignment
2004-01-19 by Jeremy Taylor
So the offset of the board thickness does not cause a slight misalignment? ... From: Tony Mattioli To:
Re: Etching Chemicals
2004-01-19 by cdaw01
I just picked some of this up - Solution B is indeed High Strength h202, but Part A of my kit was Sodium Hydroxide, so a double bonus, more photoresist
Re: Laminating and alignment
2004-01-19 by Tony Mattioli
I use the method described above of holding the two sides up to the light to align them. I attach the two sides with a glue stick. This holds them well and
Re: Dip/spin coater for photo emulsion
2004-01-19 by mikezcnc
Gr Roel I have pictures, I even spent time preparing them for proper size, then after I posted tehm, I was asked to make them even more efficient because they
Re: [Homebrew_PCBs] Re: Roll Tinning Machine
2004-01-18 by David Hopkins
It was hand made. However a machine shop was available. David
Re: [Homebrew_PCBs] Toner Transfer - Large boards?
2004-01-18 by Tony Harris
That s an interesting idea. I m not sure how I d make it work tho since it s a two sided board with alignment holes already drilled into the pcb. Although, I
Re: [Homebrew_PCBs] Problems with HCL/H2O2 etchant.
2004-01-18 by Leon Heller
... From: To: Sent: Sunday, January 18, 2004 2:47 PM Subject: [Homebrew_PCBs] Problems with HCL/H2O2
Re: [Homebrew_PCBs] Problems with HCL/H2O2 etchant.
2004-01-18 by Jeremy Taylor
do a search and review the material, If you had 30% HCL, you needed to add twice that volume of water, to get a 15% mix, then a teaspoon or so h2o2 -- Only to
Problems with HCL/H2O2 etchant.
2004-01-18 by Linux_Rules@Ev1.Net
Several weeks ago there was a thread about using HCL & H2O2 as an etchant. That was a god-send for this newbie/lurker. I have used A.P. mostly but am unhappy
Re: [Homebrew_PCBs] Toner Transfer - Large boards?
2004-01-18 by Leon Heller
... From: Tony Harris To: Sent: Sunday, January 18, 2004 3:37 AM Subject: [Homebrew_PCBs] Toner Transfer
Re: Roll Tinning Machine
2004-01-18 by dkesterline
... expect ... Interesting... Is this a comercial machine, or something homebrew? -Denny
Roll Tinning Machine
2004-01-18 by David Hopkins
Gentlemen, Stefan asked for more information about my Roll Tinning Machine. I expect others may be interested. I have loaded several pictures into the photo
Re: [Homebrew_PCBs] Re: Water glass etch resist,queiry for adam
2004-01-18 by mpdickens
... of water glass and sulfuric acid to form colloidal SiO2, then its dried somehow. In a lab setting, the collodial is collected on filter paper using a
Toner Transfer - Large boards?
2004-01-18 by Tony Harris
Ok, I ve looked thru the list a bit, and in the files section and in the links section, but I haven t found any good info on this. For smaller boards, I have
RE: [Homebrew_PCBs] Eagle question: Manual routing
2004-01-18 by Anthony Toft
OK, I think I found it... DRC won t explicitly say they cross, but the rules will highlight errors based on signal clearance. It successfully found my crossed
Re: [Homebrew_PCBs] Re: Water glass etch resist,queiry for adam
2004-01-18 by pebo festus
thanks Adam, one can get water glass at most drug stores, readily available. i guess i am just going to have to run some tests. thanks again mebo ...
RE: [Homebrew_PCBs] Eagle question: Manual routing
2004-01-18 by Anthony Toft
I agree, but it was free, and now I have learnt enough to be at least a little dangerous. I am loath to switch to another product, but I will if something
Re: [Homebrew_PCBs] Eagle question: Manual routing
2004-01-18 by Leon Heller
... From: Anthony Toft To: Sent: Sunday, January 18, 2004 2:06 AM Subject: RE: [Homebrew_PCBs] Eagle
RE: [Homebrew_PCBs] Eagle question: Manual routing
2004-01-18 by Anthony Toft
I tried the ERC after intentionally crossing Vcc and ground, it didn t figure it out. ... http://www.c1tracking.com/l.asp?cid=5511
Re: [Homebrew_PCBs] Eagle question: Manual routing
2004-01-18 by Leon Heller
... From: Anthony Toft To: Sent: Sunday, January 18, 2004 12:29 AM Subject: [Homebrew_PCBs] Eagle
Eagle question: Manual routing
2004-01-18 by Anthony Toft
Hi, Do any of you guys know if there is someway to have Eagle check that the routing matches the schematic after I have assisted the auto router? IE have it
Re: [Homebrew_PCBs] Re: Water glass etch resist,queiry for adam
2004-01-17 by Adam Seychell
Dried water glass will dissolve in water, but very slowly. I m not sure how fast dried water glass it will dissolve in acid. I know they make silica gel
Re: [Homebrew_PCBs] Tarnish Remover
2004-01-17 by Stefan Trethan
On Sun, 18 Jan 2004 08:48:36 +1000, David Hopkins ... I know what thiourea is, it is considered a carcinogen and used in electroless
Tarnish Remover
2004-01-17 by David Hopkins
Gentlemen, For a number of years I have been using my roll solder machine to tin my completed etched boards for soldering. Part of the process involves
RE: [Homebrew_PCBs] Laminating and alignment
2004-01-17 by nuno-t
Hi Denny, I put both papers up to a strong light and align them both. They are held together by means of paper clips (strong spring type ones). The papers are
Re: Laminating and alignment
2004-01-17 by javaguy11111
I did my first two sided board a couple of weeks ago with 11 mil vias. After printing my two sides on PNP, I left about a two inch tail of extra material along
Re: [Homebrew_PCBs] Re: Etching - chemical storage - compatibility
2004-01-17 by Stefan Trethan
... As said my bottles are made of PolyEthylene. It is white/transparent (you can see how much is in it). HCl seems to come through slightly (salt crystals on
Re: [Homebrew_PCBs] Laminating and alignment
2004-01-17 by Victor Faria
Here is an Idea!!! 1- transfer side 1 of pcb 2-use scotch tape to protect side 2 from etching. 3- etch side 1 4- drill a couple of hole for alignment
Re: Etching - respect for chemicals - chemical storage
2004-01-17 by Dave Mucha
... which is ... can be ... with ... Oh how we lament the poor spelling. If you google muriatic, you will get 22,900 hits, google muratic (without the i )
Re: [Homebrew_PCBs] Re: Etching - thoughts and a respect for chemicals.
2004-01-17 by Stefan Trethan
well, i use the method myself, and as it was already written it is not dangerous at all if you take care. I store the bottle of HCL and the bottle of H2O2 (bot
Re: [Homebrew_PCBs] Re: Etching - thoughts and a respect for chemicals.
2004-01-17 by Tony Harris
Hi Denny, As I had mentioned in my post a 50-50 mix was IMHO way too strong, and I had realized that while I was combining - at this point I was still in a big
Laminating and alignment
2004-01-17 by dkesterline
Looking for other peoples experiance with aligning double sided TT through a laminator. I just tried to laminate my first DS board. I stuck down one side,
Re: [Homebrew_PCBs] Re: What's the temp of the average laminator? Fuser?
2004-01-17 by Esteban Arias
Hi, I am testing a HP 4L fuser for try make a laminator. I have the service manual of this printer and this say: The fusing temperature is monitored by the DC
Sharpening etching bits
2004-01-17 by Dave Mucha
Hi all, I have a dozen dull 60 degree cnc etching bits that I was thinking about not tossing out. Does anyone know of a place to get them sharpened ? It
Re: Etching - thoughts and a respect for chemicals.
2004-01-17 by dkesterline
-trim- ... others have ... Tony, Your ratio is WAY off. There was a recent thread on this and I suggest you look over the archives of the past couple (3)
Re: Water glass etch resist,queiry for adam
2004-01-17 by pebo festus
... adam are you telling me that even if the water glass is set and hard the acids wiil desolve it?. i have been advised that gycol and water glass will also
Re: [Homebrew_PCBs] Etching - thoughts and a respect for chemicals.
2004-01-17 by Jeremy Taylor
Cupric chloride etching?.I think the ratio should have been more like muratic 12% volume to water, and a teaspoon of h2o2 just to get it started. Toss in some
Etching - thoughts and a respect for chemicals.
2004-01-16 by Tony Harris
Hi all, I know that I don t post much to this list and act mostly as a lurker, but I recently tried something that I found on a website (that I am sure many,
Re: [Homebrew_PCBs] BGA aligning
2004-01-16 by Adam Seychell
... I ve never touched any BGA stuff, but I would guess that if you place the 555 close to its position and heat your 5 x 5 mm PCB with a temperature
BGA aligning
2004-01-16 by javaguy11111
I am attempting my first BGA component. It is a simple 8 ball 555 timer using 0201 and 0402 components. Toner transfer will be used and I think will be doable