Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-03 by mikezcnc
OK, Stefan, I got the message, sorry for overlooking teh rules.. This time, for a change, WILL BE about Mr Gootee and his suggestion. I just made a trial and I
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Re: [Homebrew_PCBs] Re: DPI and alignment. (was staples paper topic)
2004-07-02 by Stefan Trethan
... you need evidence? i can provide scans. If you look through a engligh resolution grid on a metric picture you will get unevenly spaced and unevenly wide
Re: DPI and alignment. (was staples paper topic)
2004-07-02 by Phil
My point is that the driver has to convert it to the dot grid - there are always conversions taking place. You will almost never have an exact number of dots
Re: [Homebrew_PCBs] DPI and alignment. (was staples paper topic)
2004-07-02 by Stefan Trethan
... yes, correct, IF you draw the lines on a grid in mil. if yo have metric grid (e.g. metric spaced flatpack) the driver must convert it, and will make
DPI and alignment. (was staples paper topic)
2004-07-02 by Phil
I m not so sure that a 7 mil trace is going to come out that well on a 300 dpi device. that is basically 2 dots wide (2.1 to be exact but it doesn t do
Re: [Homebrew_PCBs] Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-02 by Stefan Trethan
... there is some severe topic drift obviously. We are no longer talking about TT as the subject says? please change the subject line. ST
Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-02 by mikezcnc
Great answers, thanks Stefan and Dave... So T-tech is great for... drilling, if one can print it, one can etch it. But what about the blackness ? How
Re: [Homebrew_PCBs] Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-02 by Stefan Trethan
... You don t understand the problem. Even a 300dpi unit can do traces of 7 mil but _not_ metric spaced smd parts. the printer works in inches and if you print
Re: [Homebrew_PCBs] Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-02 by Russell Shaw
... A cheap old epson stylus 400 colour will do 8mil tracks/spacing smoothly in 600x720dpi mode. It s the printer technology and ink/transparency combination
Re: [Homebrew_PCBs] Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-01 by Stefan Trethan
... You got the problem, the metric spacing and the DPI don t work together at all. I have only 300DPI and it is not enough, i hoped 600 would be OK. Would be
Re: [Homebrew_PCBs] Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-01 by Alex
... How many dpi must the printer be able to handle for 10mil tracks ? I tried to print out a 600dpi bitmap and even a1200dpi image of my board at the public
File - monthly.txt
2004-07-01 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] Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-01 by Stefan Trethan
... It s actually more like if you can print it you can etch it . ST
Re: Staples #471861 as suggested by Thomas P. Gootee
2004-07-01 by Dave Mucha
... Hi Mike, I have a T-Tech machine and would sell it in a minute if there was a better way to drill. The toner transfer and optiocal (ultaraviolet?) both
Re: [Homebrew_PCBs] SMD boards (was Re: Staples #471861 ...)
2004-07-01 by Stefan Trethan
... DEFINITELY! SMD 1206 to 0603 is no problem, so are standard SMD ICs. the smaller flatpacks are a problem with 300DPI printers but are surely possible with
SMD boards (was Re: Staples #471861 ...)
2004-07-01 by mikezcnc
Phil, I meant: is SMD PCB possible using that staple paper #471861 AND Tone Transfer. If you are using something else, can you tell us what paper and printer
Re: [Homebrew_PCBs] SCOTCH 8007
2004-07-01 by Bill Maxwell
No experience here about real Scotch going off with age- and none in my family I suspect. It s never around long enough! ... From: To:
Re: [Homebrew_PCBs] SCOTCH 8007
2004-07-01 by Bill Maxwell
Happy to stay in touch Don and will report progress if and as I make some. One technique I have used to overcome the translucency of negatives made on a
SMD boards (was Re: Staples #471861 ...)
2004-07-01 by Phil
possible? absolutely! Heck its a lot easier since you don t have to drill so many holes. I keep looking for cheap, decent SMD connectors so I can drill even
Staples #471861 as suggested by Thomas P. Gootee
2004-07-01 by mikezcnc
Does this mean that making a quality SMD PCB is possible? Mike ... it s extremely quick, and easy. ... procedure, plus the exact paper type and its source
Re: [Homebrew_PCBs] SCOTCH 8007
2004-07-01 by JanRwl@AOL.COM
In a message dated 6/30/2004 3:57:05 AM Central Standard Time, wrmaxwell@bigpond.com writes: limited shelf-life of Scotch 8007. Whew! For a minute, I thought
Re: SCOTCH 8007
2004-06-30 by Thomas P. Gootee
Don, I have recently updated my webpage on the toner transfer procedure: The results seem to be basically PERFECT, EVERY TIME, now. And it s extremely quick,
more reflow oven questions.
2004-06-30 by Phil
Well, thanks to all for helping me find the CCI article. In it the author makes the statement that you need a PCB with a soldermask to use a reflow oven. He
Re: [Homebrew_PCBs] SCOTCH 8007
2004-06-30 by Alexandre Souza
boards these days to get to the level of the others and I don t like the toner transfer system I find it is to uncertain for what I ... Don, I m pretty sure
Re: [Homebrew_PCBs] SCOTCH 8007
2004-06-30 by Don Bradbury
Hi Bill, many thanks for the reply I think I am to basic with my needs for most people on this board. I don t make enough boards these days to get to the level
Re: [Homebrew_PCBs] SCOTCH 8007
2004-06-30 by Bill Maxwell
G day Don I am about two weeks behind in clearing e-mails but I note that you dont appear to have had a response as yet. I m afraid I dont have good news for
Re: HCl - a cautionary tale!
2004-06-30 by Ben H. Lanmon
Face Shields are readily available in the US, I am sure that one of the Tool Supply Houses or maybe even Home Depot or Lowes will ship outside the US. I know
Re: CG Electronics spray resist?
2004-06-30 by Ben H. Lanmon
... Try GC Waldom www.gcwaldom.com Last I knew that still carried the spray on resist. I fine it much easier to just buy the boards with the resist
Download it here: was Re: Reflow Toaster Oven
2004-06-29 by sciciora
http://www.circuitcellar.com/renesas/winners/3323.htm Click on entry on right hand side, below the picture. - Steven Ciciora
Re: [Homebrew_PCBs] Re: photoresist
2004-06-29 by Adam Seychell
... I haven t seen these rollers around. Ink rollers are precision molded and very smooth. Any lumps on the rollers will cause dents in the film. I got two
Re: Reflow Toaster Oven
2004-06-29 by Phil
I usually get it when I go by a store that has it! Frys in Renton had the June issue on the stand today. ... June ... July ... there
Re: [Homebrew_PCBs] photoresist rollers
2004-06-29 by Leon Heller
... From: Norman Stewart To: Sent: Monday, June 28, 2004 7:13 AM Subject: Re: [Homebrew_PCBs]
RE: [Homebrew_PCBs] Re: Reflow Toaster Oven
2004-06-28 by John Craddock
In the electronically delivered version. Regards John C ... From: Phil [mailto:phil1960us@yahoo.com] Sent: 29 June 2004 05:06 To: Homebrew_PCBs@yahoogroups.com
Re: [Homebrew_PCBs] Re: Custom keypads
2004-06-28 by JanRwl@AOL.COM
In a message dated 6/28/2004 12:16:16 AM Central Standard Time, phil1960us@yahoo.com writes: uh, y got the wrong guy. I didn t do that, just responded. OOPS!
Re: [Homebrew_PCBs] Re: Reflow Toaster Oven
2004-06-28 by Robert Ussery
... I don t know when you normally get your CC s, but I received my July issue about a week ago. I don t have the page number for ya, but there is definitely
Re: photoresist
2004-06-28 by nps0
... Possibility: old washing machine wringer rollers (remember when?) or maybe industrial mop wringer rollers. Just a thought. Wouldn t like to part with a
Re: Reflow Toaster Oven
2004-06-28 by Phil
The July issue doesn t yet appear to be out but a look at the June issue s section on what s in the july issue didn t mention this article. Where did you
Re: photoresist
2004-06-28 by Brian Chapman
... mounted frame so they roll against each other. Adam, do you have photos of the device you built? I d love to see em. By old printing machine, do you
Re: Custom keypads
2004-06-28 by javaguy11111
Aluminum tape was what was available on my workbench when I tried it. Copper tape would be preferred. ... continue to read of this
Re: [Homebrew_PCBs] photoresist rollers
2004-06-28 by Norman Stewart
Possibility: old washing machine wringer rollers (remember when?) or maybe industrial mop wringer rollers. Just a thought. Wouldn t like to part with a
Re: Custom keypads
2004-06-28 by Phil
uh, y got the wrong guy. I didn t do that, just responded. ... continue to read of this
Re: [Homebrew_PCBs] Re: Custom keypads
2004-06-28 by JanRwl@AOL.COM
In a message dated 6/27/2004 7:27:07 PM Central Standard Time, phil1960us@yahoo.com writes: I am sure some kind of debounce will be need,
Re: [Homebrew_PCBs] photoresist
2004-06-28 by Adam Seychell
I use negative dry-film resist. I got about 20meters off a old roll from a local PCB shop. New film only sold in pair of rolls 152.4 meter length 305mm
Re: Custom keypads
2004-06-28 by Phil
Clever piece of experimentation. I wonder what the performance will be like after 1K, 10K, 100K presses... I recall an article in either N&V or CCI where the
To start sending messages to members of this group, simply
2004-06-27 by Jeffrey Martin
Hi [Non-text portions of this message have been removed]
Custom keypads
2004-06-27 by javaguy11111
I decided to try an idea I had for creating custom keypads for my projects. I have only done a single key, but it worked quite well. I took a circuit board, a
Re: [Homebrew_PCBs] photoresist
2004-06-25 by Jeremy Taylor
I coat 112 doublesided 6X9 boards with 1 100ft roll of negative laminate film. Costs about $100 per roil including shipping, I get boards for $2.25 , so to me
Re: [Homebrew_PCBs] Re: HCl - a cautionary tale!
2004-06-25 by Stefan Trethan
On Fri, 25 Jun 2004 13:51:31 -0000, Dave Mucha ... i m talking bout the small dremel like tool. (I just don t want to advertise the bad
Re: HCl - a cautionary tale!
2004-06-25 by Dave Mucha
... wheels ... like ... I use a shop vac on the grinder to pull as much dust out of the air I breath and more importantly so it does not settle on my machine
Re: Seno 1000 liquid photoresist
2004-06-25 by Dave Mucha
... My question is what are the things one looks for in a photo resist ? dyed ? positive ? cost ? availability ? What is available in the States at a