Yahoo Groups archive
Messages
Page 494 of 707 · 35337 messages matched
2005-11-17 by Les Newell
The best thing to do is try. Get some transparency and print a board on it. Hold the transparency up to the light. If the lines are dense and clean then you
2005-11-17 by JMBlanco
Hi Derek and group Good job Derek with drawers & camera. I read all messages in this group and have never read something I want to point to the group. The idea
2005-11-17 by Terry Mickelson
I have the Techniks Press n peel heat press and ran into some bad luck with a bad batch of pnp. If I were to use Pulsar paper, what would be a good starter
2005-11-17 by Leon Heller
... From: Russell Shaw To: Sent: Thursday, November 17, 2005 2:30 AM Subject: Re: [Homebrew_PCBs]
2005-11-17 by Mike Young
... From: derekhawkins ... I don t know it, so I guess I ll have to prove it for myself. I ll run some through the lab s
2005-11-17 by Russell Shaw
... I tested canons and HPs a few years ago and they had crappy transparency that took ages for the ink to dry. HPs use thermal boiling of the ink which easily
2005-11-17 by Jim Miller
i ve got an hp7960 printer. is there any experience with inks and transparencies that might indicate potential success with this unit? tnx jtm
2005-11-17 by Ron
... again, note ... Could you elaborate on the folded cardboard? I m having a problem visualizing exactly what you are doing. I m assuming you tape the
2005-11-17 by Russell Shaw
... Now etch for 7-8mins in ferric-chloride bubble etcher at room-temp, or put into flat tray and brush over with paint brush. After bubble etching, it s
2005-11-17 by derekhawkins
... Regardless of ink type, the density of laserjet print **on transparencies** will always be vastly inferior to inkjet print. Just about everybody knows
2005-11-17 by Mike Young
... From: derekhawkins To: Sent: Wednesday, November 16, 2005 8:24 PM Subject: [Homebrew_PCBs] Re: A
2005-11-17 by Russell Shaw
... A box with four 15Watt flouros (tubes about 20cm long), and 10-20cm from glass where PCBs lie. Because i haven t used a flouro box for a while, there s a
2005-11-17 by Mike Young
... From: derekhawkins To: Sent: Wednesday, November 16, 2005 7:49 PM Subject: [Homebrew_PCBs] Re: A
2005-11-17 by derekhawkins
... It s tinned using plumber s solder paste. Doesn t wet and smoothen as well as the more expensive stuff, hence the little pips here and there. It was
2005-11-17 by Mike Young
Very nice. What s the plating? or is that just a trick of the light? ... From: derekhawkins To:
2005-11-17 by Mike Young
... From: Russell Shaw ... I like that. Simple is good. Seems to me I have room for a small lightbox on the worktable. What would
2005-11-17 by derekhawkins
... I should have posted this shot of a single sided board (made from inkjet artwork) in my previous post to demonstrate why injket jagged edges in print are a
2005-11-17 by derekhawkins
... Not quite. You print the artwork only once (both sides for double sided). You then align both sides and permanently fix the alignment of top and bottom
2005-11-17 by Russell Shaw
... It s much easier. You only need to make the front and back printouts *once*. (I have a draw full of re-useable printouts). You lay one printout on top of
2005-11-16 by Mike Young
... From: Stefan Trethan To: Sent: Wednesday, November 16, 2005 4:25 PM Subject: Re: [Homebrew_PCBs]
2005-11-16 by Stefan Trethan
On Wed, 16 Nov 2005 23:45:18 +0100, derekhawkins ... Not one where you see what you want (alignment i guess).
2005-11-16 by Mike Young
... From: derekhawkins To: Sent: Wednesday, November 16, 2005 4:37 PM Subject: [Homebrew_PCBs] Re: A
2005-11-16 by derekhawkins
... Oh yeah, takes only 5 seconds. So if you had five boards it would only set you back 25 seconds. Do you have any shots of your double sided work?
2005-11-16 by derekhawkins
... So if you had to do 5 boards you would have to do the following steps 5 times, once for each board; ... -- Combine in Photoshop the artwork for top,
2005-11-16 by Stefan Trethan
You drill before etching? I do it this order: For two sides copper and two sides legend: Print all 4 views, cut out. Align copper views against light, hold
2005-11-16 by Mike Young
... From: derekhawkins To: Sent: Wednesday, November 16, 2005 3:18 PM Subject: [Homebrew_PCBs] Re: A
2005-11-16 by Stefan Trethan
On Wed, 16 Nov 2005 22:11:27 +0100, derekhawkins ... Course it does, any size you can print. I m not going to explain it to someone
2005-11-16 by Adam Seychell
... Good comparison. I can add. * learning curve finding a good inkjet transparency/ink combo verses finding good TT paper. * added mess of photoresist
2005-11-16 by adicont2
Of course, it is unfair not to offer different opinions if they exist . From different opinions, we (or some of as)learn something. The word comunication
2005-11-16 by Leon Heller
... From: Mike Young To: Sent: Wednesday, November 16, 2005 9:11 PM Subject: Re: [Homebrew_PCBs] Re:
2005-11-16 by derekhawkins
... We ll get into the quality of the finished product later. Have you ever done a double sided board using TT? If yes then explain the TT process.
2005-11-16 by Mike Young
... From: derekhawkins ... That s a little too far over the top. From a complexity and startup cost point of view, the choice is
2005-11-16 by derekhawkins
... What size board are you talking about? Can that process as you mention even work for a double sided board?
2005-11-16 by Stefan Trethan
... I found you must first adjust your printer properly, then make a trial transfer which you measure, and then simply compensate. The thing is, if the printer
2005-11-16 by Alan King
... Hmm I d say educated opinions for that, everyone has opinions, some just form them without even beginning to look at all possibilities properly first..
2005-11-16 by Stefan Trethan
On Wed, 16 Nov 2005 19:01:29 +0100, derekhawkins ... Same true in reverse. ST
2005-11-16 by Leon Heller
... From: derekhawkins To: Sent: Wednesday, November 16, 2005 6:46 PM Subject: [Homebrew_PCBs] Re: A
2005-11-16 by derekhawkins
... The prevailing view seems to be that since industry uses photoetching then it s far too expensive and too involved for the home. Either that or we must do
2005-11-16 by lcdpublishing
... way ... Well, I wouldn t say that with any certainty. When I came here a few months back (or however long ago it was), I looked at the variety of options
2005-11-16 by Leon Heller
... From: mikezcnc To: Sent: Wednesday, November 16, 2005 5:23 PM Subject: [Homebrew_PCBs] Re: A
2005-11-16 by Leon Heller
... From: derekhawkins To: Sent: Wednesday, November 16, 2005 6:01 PM Subject: [Homebrew_PCBs] Re: A
2005-11-16 by derekhawkins
... If you were not able to achieve faster and consistently better results using photoetching then you never mastered the process due to one reason or another.
2005-11-16 by derekhawkins
... So true. If one comes to this forum with little or no PCB experience one will certainly go away believing that TT is the only sensible way to go. Well, for
2005-11-16 by Stefan Trethan
... I d say the usual. eyes, skin in higher concentrations. Feels funny, you won t like to touch it anyway. ST
2005-11-16 by Stefan Trethan
In your opinion, not mine. I m not discussing it further, i ve made my point. ST On Wed, 16 Nov 2005 18:31:00 +0100, derekhawkins
2005-11-16 by derekhawkins
... Well, TT worked for me. And all was fine until I started comparing my boards to those that were photoetched. TT is cheaper and that s about all it has
2005-11-16 by mikezcnc
..any comments on safety of using Sodium hydroxide? Mike ..and I know of a guy who can layout 5 mills PLCC44 tracks using just 3M blue masking tape...
2005-11-16 by lcdpublishing
Well, said Stefan. All too often people get caught up in the belief there is only one way or one opinion on something and everyone should follow that singular
2005-11-16 by Stefan Trethan
... I agree with you. However, i will not stand by letting people say things i disagree with without providing a different point of view. I do fully accept the
2005-11-16 by derekhawkins
... 20D. Thanks!