Re: [Homebrew_PCBs] First Double-sided board
2008-12-24 by Stefan Trethan
Actually exactly this problem occurs with my homemade laminator. It is a copy machine fuser and has one aluminum roller (heated) and one silicone rubber
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First Double-sided board
2008-12-24 by jerrytr2.com
Hello, Having gotten good results with my analog board the other day, I proceeded to try double-sided. Results were mixed.... This was a little PIC cpu card
Re: Toner Transfer Details?
2008-12-23 by jerrytr2.com
... *** And yesterday I ran to the store and bought the dremel drill press attachment to drill the holes. Worked great! Stuffed the board last night, and it
The moderator's word on top-middle-bottom posting
2008-12-23 by Steve
This is for everyone. Can we -please- stop re-hashing this? My official word on this subject: top post, bottom post, interleave, telepathically transmitted, I
Re: Toner Transfer Details?
2008-12-22 by pgdion1
... Again, I like the scotch pads, they clean the board well and leave just enough texture (that soft brushed look) and the nature of the pad makes sure the
Re: Toner Transfer Details?
2008-12-22 by pgdion1
... Here s the basic process I use and get great results with. Board prep. I scrub the board both sides with dawn dish soap and a 3M scotch brite sponge (use
Re: [Homebrew_PCBs] Re: Toner Transfer Details?
2008-12-22 by dhlocker@comcast.net
Congratulations! Now that you are hooked, you can try some variations in the preparation process. Some light sanding with a 3M abrasive pad to lend some
Re: Copper Foils
2008-12-22 by trevwhite74
... This is how I came to understand it too and why I started taking the time to edit replies accordingly. Makes life a lot easier when following a thread.
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-22 by Derryck Croker
... Actually, the idea is that the responder takes the trouble to edit out all the stuff that he/she isn t commenting on. The thread itself can be read either
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-22 by Stefan Trethan
The stuff i have from Bungard seems very transparent, but that is surely ~10 years old so it may be different now. Also the thin boards i have (0.5mm) turn out
Re: Copper Foils
2008-12-22 by trevwhite74
... I have a feeling it might be too thick to give reliable etching. I have ordered some copper sheets used for guitar pickup shielding just to see what it is
Re: [Homebrew_PCBs] Re: Toner Transfer Details?
2008-12-22 by Stefan Trethan
See, i told you so ;-) You can probably tune down the preparation a little. What i do is rub the surface with 1000 grit sandpaper or one of those plastic
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-22 by Stefan Trethan
This is an email list for most of us. If you reply to other emails, do you reply on the bottom as well? Thought so. This sticky copper tape for glass work, is
Re: Toner Transfer Details?
2008-12-22 by jerrytr2.com
... *** Just got back from the kitchen sink. The board is GORGEOUS. I flushed it with cold water, then gave it a 15 minute soak in warm soapy water. The
Re: Toner Transfer Details?
2008-12-22 by jerrytr2.com
... glossy, ... *** I tried the glossy front page of a Ram Welding catalog. The toner transferred well, but so did Ram Welding s print. Apparently they d
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-22 by dhlocker@comcast.net
Q: Why is bottom posting evil? A: Because it makes people who have been following the thread reread the entirety of it just to get to the two-line ME TOO
RE: [Homebrew_PCBs] Copper Foils
2008-12-22 by Tony Smith
... some? ... Foil typically comes in 10 metre (33 ) rolls, with widths from about 4mm - 10mm. The sizes are related to the thicknesses of glass, the copper
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-22 by Brian Pitt
... good one anyway I ve seen copper foil sold as slug and snail tape (about 2 wide) and 12 x12 sheets for guitar making check the bottom here
RE: [Homebrew_PCBs] Re: Copper Foils
2008-12-22 by Tony Smith
... There s some sort of chemical reaction that happens when you score the glass, it gets into the crack and widens it. Can t remember at the moment, and too
Re: Copper Foils
2008-12-21 by trevwhite74
... Oh, this might not be good. Does this mean that there is always going to be the off colour kapton layer seen where copper is removed? That was what the
Re: THRU HOLE PLATEING
2008-12-21 by trevwhite74
... Well I must admit I think I will just enjoy playing around with this and see where it takes me. Thanks for the thoughts though. The group has been great...
Re: Copper Foils
2008-12-21 by drpain1313
... well ... There shouldn t be any problem with the tracks lifting, as long as you don t get too hot with your soldering iron. The copper is epoxied to a
Re: [Homebrew_PCBs] Re: THRU HOLE PLATEING
2008-12-21 by Markus Zingg
I haven t used glass ever, but provided you manage to make the glass conductive, copper will deposite. It s likely that you can do this with the palladium
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-21 by kabowers@NorthState.net
... You might get some inspiration by looking into how the contacts for LCDs are handled.
Re: Copper Foils
2008-12-21 by trevwhite74
... Well I have ordered some laminates from laserpcb.com. I asked them if they thought it would stick to glass. The support was fantastic. The reply I got I
Re: THRU HOLE PLATEING
2008-12-21 by trevwhite74
Glad you are setting up a page. You really deserve a lot of credit for this. My offer really was to help with your documentation. After all it is all your
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-21 by Stefan Trethan
OK the next problem is adhesion. Will the copper foil ever stick to the glass properly, without coming off during soldering? The copper foil on normal PCBs is
Re: [Homebrew_PCBs] Re: THRU HOLE PLATEING
2008-12-21 by Markus Zingg
Trev, The disposal of the chemistry for a setup the way I use it is much less of a problem than it may seems. This is because a) Most of the chemistry is the
Re: Copper Foils
2008-12-21 by trevwhite74
I am wondering about the drilling aspect. I think it is certainly a challenge and I am tempted more and more to figure out a different approach. I have started
Re: Copper Foils
2008-12-21 by trevwhite74
... This is a really good point. I will have to dig a little more into this point.
Re: THRU HOLE PLATEING
2008-12-21 by trevwhite74
Hi all. I am looking at sorting out my own plating process based on the great information in this message. I do not think it would have been possible without
Drilling glass (was Re: [Homebrew_PCBs] Re: Copper Foils)
2008-12-21 by dhlocker@comcast.net
If one is set on drilling through glass, the brass tube and abrasive compound is probably the best for a small shop. I used Clover brand valve grinding
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-21 by Stefan Trethan
Yes, but apparently it isn t like cutting say a sheet of cardboard or plastic. The glass kinda breaks in sections, is what i have read. I never tried it
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-21 by James Bishop
... I used to work with an optics guy, he told me that it helps. I guess the water would absorb some of the vibrations, its probably the same principle with
Re: [Homebrew_PCBs] Re: Toner Transfer Details?
2008-12-21 by James Bishop
I ve never tried the paper you are using, but I was under the impression that the *Inkjet* glossy is preferable to the laser glossy, because the laser paper is
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-21 by leon Heller
... From: James Bishop To: Sent: Sunday, December 21, 2008 11:39 AM Subject: Re: [Homebrew_PCBs] Re:
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-21 by James Bishop
... I heard that it helps to drill the glass underwater, if you can arrange that. Never tried it though...
Re: [Homebrew_PCBs] Re: Toner Transfer Details?
2008-12-21 by Stefan Trethan
Yes, the wrinkling is a problem. I even got a crease when i tried, so i didn t try again. Possibly the sheets can be dried between two plates in an oven or
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-21 by David Griffith
... I have a book somewhere that describes making a drill bit by mounting a copper or brass tube on a steel mandrel. Cut two V-shaped notches in the business
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-21 by William Alford
... i ve drilled glass and ceramic tile and stone. you need to drill *slowly*. and spray repeatedly with water to keep cool and remove residue. i ve used
Re: Toner Transfer Details?
2008-12-21 by jerrytr2.com
... greatest ... *** I tried this. Sure can get some serious shrinkage with a full sheet. In fact, the paper ( HP Q2419A ) just wrinkled up. Obviously
Laserjet 4p Jams
2008-12-20 by Paul Sturpe
I recently acquired an HP Laserjet 4p that I want to use for printing on photo paper. After a few successfull prints the paper started to jam. I am using
Re: [Homebrew_PCBs] Toner Transfer Details?
2008-12-20 by Stefan Trethan
yes to all your questions. Edge problems are common. There can be many reasons, like contamination or bad surface preparation, which is tricky along the edges.
Toner Transfer Details?
2008-12-20 by jerrytr2.com
Hello, I spent about half a day experimenting with this today. I had just obtained a box of HP gloss laser paper #Q2419A, which was well reviewed in the
Re: Copper Foils
2008-12-19 by trevwhite74
Thanks guys for the answers. I think definately SMT. I also think that if I can score and tap the redundant glass away then any shapes required should be fine.
Re: [Homebrew_PCBs] Re: Copper Foils
2008-12-19 by kabowers@NorthState.net
... Pyrex glass....preheat...stick to SMT parts? Just a thought.
Re: [Homebrew_PCBs] Copper Foils
2008-12-19 by Adam Seychell
... People have been coating silver on glass for many years, so I cannot see why copper cannot be deposited, even if over a silver seed layer. Even if you
Re: Copper Foils
2008-12-19 by trevwhite74
... Okay, this stuff looks perfect. Thanks so much. I was thinking about the different materials i could use. I think clear acrylic would be very cool but it
Re: [Homebrew_PCBs] Reindeer hooves!
2008-12-19 by Mike
Happy Etching in 2009, Jim. ... -- 73, Mike, K4GMH [Non-text portions of this message have been removed]
Re: Copper Foils
2008-12-19 by jeromedecock
... SMD? - no holes I have some copper foils (quite thick at 0.25 mm), I used double sided adhesive(in film roll 60 cm wide) to stick it to plexiglas, then