Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-02 by Adam Seychell
Jeremy, Thanks for the info, I assume your plating solutions (including flash plate) were purchased as proprietary products. so I understand why you wouldn t
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Re: [Homebrew_PCBs] Re: panelizing for dummies?
2004-04-01 by David P Harris
Hi - This worked fine for me and Advanced Circuits. I modified GerbMerge slightly to allow different spacing up-down and left-right. David
Re: panelizing for dummies?
2004-04-01 by ggindele
I just used GerbMerge to order from AdvancedCircuits. It only tested with Eagle produced gerbers. So far no problem, but my order is not done yet, so I ll keep
Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-01 by Jeremy Taylor
My tin setup is Sulfuric based, Tin stuff and Brightener The Tin is pattern plated at 100 milliamps per sq in (.0001 per 10 mins) I shoot for 0003~0004 My
File - monthly.txt
2004-04-01 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] maxim samples
2004-04-01 by Stefan Trethan
Hi all.. Want just write that a bunch of very expensive maxim samples did just arrive, from the initial order with - in the company field. so it seems they
Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-01 by Adam Seychell
... Jeremy, What bath compositions do you use for all three plating tanks ? I have done some pure tin electroplating on PTH boards and had no soldering
Re: [Homebrew_PCBs] Wire connections to SMT PCBs?
2004-03-31 by JanRwl@AOL.COM
In a message dated 3/30/2004 9:31:13 AM Central Standard Time, jim@jtmiller.com writes: PTHs for top mounted euro style terminal strips. Although the euro
Re: panelizing for dummies?
2004-03-31 by twb8899
... Phil, I use PhotoCam by Lavenir for setting up panels. The data is then sent to a Lavenir photoplotter to make the tooling films. This arrangement has
Re: panelizing for dummies?
2004-03-31 by Phil
thanks. I found what I was looking for in viewmate - step and repeat. sometimes this PCB terminology is a tad obscure... I agree that the no panels
Re: panelizing for dummies?
2004-03-31 by Dave Mucha
... design? ... Olimex offers free panelitization and free cut-outs so that restriction of use is being torn down. Kinda like airlines where you are not
panelizing for dummies?
2004-03-30 by Phil
Is there any software out that that I can use to panelize a design? I can produce gerbers. Any pointers would be appreciated. btw, this is NOT to figure out
Re: Wire connections to SMT PCBs?
2004-03-30 by Steve
... on the ... on the ... bother ... Yes, some brands of TV use that method quite extensively. I think it it Thomson Electronics that makes it a nightmare by
Re: Standard inkjet inks for etch resist?(yeeeehaaa))
2004-03-30 by Richard Mustakos
I ve got some solder and rosin flux powders coming through the mail. It looks like I might have to flat bed that printer pretty soon after all. I might get
Re: lithography circuits - new technology
2004-03-30 by Richard Mustakos
They have a bunch of different types of ink, but three main classes: 1) Silver and Copper Conductive ink: This is all sub milliohm/square stuff, almost as
Re: Terminals outside enclosure
2004-03-30 by Richard Mustakos
jtm Another way to secure the wires (physically, not electrically) is to hot glue them in place when your dome soldering. It s great stuff - friendly to use,
Re: Wire connections to SMT PCBs?
2004-03-30 by Phil
I totally agree with connectors being through hole. there is no comparison. Put pads/solder on both sides for additional strength. I mix smt on bottom and
Re: [Homebrew_PCBs] Re: Terminals outside enclosure
2004-03-30 by David P Harris
Hi- These are grat, but a little expensive. I have some 0.1 centred ones. They also come in a wide variety of units: single to 12. Have a look at the
Re: [Homebrew_PCBs] Wire connections to SMT PCBs?
2004-03-30 by Stefan Trethan
... I do that too... It s the method with the highest component density on single sided boards. you have all the throughhole components on top, and on the
Re: [Homebrew_PCBs] Wire connections to SMT PCBs?
2004-03-30 by Leon Heller
... From: mdgolfbum To: Sent: Tuesday, March 30, 2004 4:28 PM Subject: [Homebrew_PCBs] Wire connections to
Re: [Homebrew_PCBs] Jumpers on SMTs?
2004-03-30 by Stefan Trethan
... I ve seen a few which even i would trust. they are thinner pins, with lower pitch (maybe 2mm). they look the same, square pins and all. I think they are
Re: [Homebrew_PCBs] Re: Wire connections to SMT PCBs?
2004-03-30 by Stefan Trethan
... You are right, i had bad experiences with traces coming off.... It happens more often with bakelite, i agree, but it does also happen with FR4. In my
Re: Wire connections to SMT PCBs?
2004-03-30 by ballendo
Stefan, It seems you have had at least one bad experience at some point with traces coming off... With the older and/or cheaper bakelite type boards this can
Re: [Homebrew_PCBs] Jumpers on SMTs?
2004-03-30 by Paul Davis
You can get SMT jumper pins but you have to consider that they do not have the mechanical strength of a through hole part. They ll probably be fine for
Re: [Homebrew_PCBs] Re: Wire connections to SMT PCBs?
2004-03-30 by Stefan Trethan
... And only if the screw terminal doesn t lift off the trace... I would never ever put any mechanical strain on a small pad. It WILL LIFT off. drill the holes
Re: [Homebrew_PCBs] Re: Terminals outside enclosure
2004-03-30 by Stefan Trethan
The ones with fixed soldering pins are nearly all grey here, the ones with the plug on pins are dark grey or black. Rest is the same as described by
Re: Jumpers on SMTs?
2004-03-30 by ballendo
Hello, This one s easier. YES. They are available from any of the larger suppliers. The legs splay so they can have good mechanical attachment to the SMT
Re: Wire connections to SMT PCBs?
2004-03-30 by ballendo
One unconventional method would be to use the std. screwterms I just described. Simply mount them at the edge of the board, by their TH pins. (NOT through
Re: Terminals outside enclosure
2004-03-30 by ballendo
Hello, I m not Rick, but the green color is a tipoff. They re likely Phoenix connectors, and they re available at mouser and digi-key. You can get these kind
Jumpers on SMTs?
2004-03-30 by mdgolfbum
Similar to my other post I need some jumper posts on my SMT board. Are there SMT mounting jumper pins? I ll them for changing some options as well as plugging
Wire connections to SMT PCBs?
2004-03-30 by mdgolfbum
I need to terminate some wires to an otherwise all SMT PCB I m designing. The wires don t naturally have any connectors on them so some sort of barrier or
Re: lithography circuits - new technology
2004-03-30 by ghidera2000
... I ... Heh, I used to feel the same way Dave - until I actually *tried* soldering SMT. Its actually quite easy. I ve done SOIC and even a couple SOT - the
Terminals outside enclosure
2004-03-30 by ghidera2000
... 3 or Rick! The first picture on your webpage shows a PCB with green screw terminals that (apparently) mate with the ones on the cover. What are
Re: lithography circuits - new technology
2004-03-30 by Dave Mucha
... Pretty much, but the guy who I send all my SMD stuff to doesn t mind. All he asks is that I don t make TSSOP stuff too often. and I keep hearing the
Re: [Homebrew_PCBs] how to use ammonium persulphate?????
2004-03-30 by Rick C.
I assume your A.P. is in powder form. Use only enough powder to do 3 or less boards under 4X6 inches. Pour water into a glass tray such as a casserole dish to
how to use ammonium persulphate?????
2004-03-30 by mumin55555
hallo! i just bhought 2 litre of ammonium persulphate, since im tired of the mass ferric chloride makes. my only problem is that i have to fill a 3 litre tank
Re: lithography circuits - new technology
2004-03-30 by Phil
yes, very cool. Dave, I think you ll do anything to avoid soldering SMT... :) ... makes ... No
Re: lithography circuits - new technology
2004-03-30 by Dave Mucha
... makes ... Logic stuff could be the single pass, and use conductive epoxy as they listed. Once you start plating, you pretty much get out what you put in.
Re: lithography circuits - new technology
2004-03-30 by ghidera2000
Actually, they said single pass circuits. I understood that to mean very thin (depth, not width) tracks. The two pass method makes it thicker and then you
Through hole plating blackhole method?
2004-03-29 by Caesar Samsi
Hi all, Perusing the file section in the Plating folder, I found a file that describes the blackhole method of through hole plating. Has anybody tried that
Re: lithography circuits - new technology
2004-03-29 by rmustakos
Dave, LOL, I know what you mean - when I see that there is no DIP version of a chip, I go into cold sweats. I ve got a licensee of theirs sending specs on how
Re: Vinyl cutter to make PCBs
2004-03-29 by Steve
... Faster? Heck yeah! That would be incredibly slow to draw with a pen, and highly inaccurate. I suppose if you ve done a lot. This way, though, I draw it
Re: [Homebrew_PCBs] Vinyl cutter to make PCBs
2004-03-29 by Stefan Trethan
... Is this any faster than drawing it up with a pen? it looks a bit crude, i would prefer TT. But thanks for the experiment, not many have a vinyl cutter to
lithography circuits - new technology
2004-03-29 by Dave Mucha
... the ... Printing the traces and not removing the copper is a great idea. On the single sided boards, they talked about conductive epoxy instead of solder.
New file uploaded to Homebrew_PCBs
2004-03-29 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 : /Sign
New file uploaded to Homebrew_PCBs
2004-03-29 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 : /Sign
Vinyl cutter to make PCBs
2004-03-29 by Steve
I just made another board using my vinyl cutter. No way to make the center holes, and I did not want to take the time to drill, so I am doing this the
Re: [Homebrew_PCBs]curve tracer
2004-03-29 by Stefan Trethan
... ok, ok i will go there.. thanks.. ST
Re: [Homebrew_PCBs]curve tracer
2004-03-29 by Steve
... ... snip ... Hey, now, Stefan, you ve gotten on people s cases for posts like that. This will quickly spread to a long thread(s) on O scopes, curve
Re: [Homebrew_PCBs]curve tracer
2004-03-29 by Stefan Trethan
... I didn t dare to mention (ok i only didn t think of it ;-) ) the curve tracer topic as it is OT. But now, steve mentioned it, so i am innocent ;-). I would