Re: [Homebrew_PCBs] Re: Spray Etching
2007-04-21 by Dale J. Chatham
I ve been doing PCBs for a good 30 years, perhaps more... I wonder why one would not use the garden sprayers one can buy from Lowes and an aquarium pump? It
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Re: Spray Etching
2007-04-21 by jcarlosmor
You should try with a pump that has no-metal parts in the impeller. I am very impressed why in this forum almost nobody seems interested in building a spray
Re: table could be usefull for pcb drilling:
2007-04-21 by docstein99
... If your hands are not steady and vision is poor, I would suggest buying a cheap ebay cnc machine. You can drill holes, mill shapes, route-out circuit
Re: [Homebrew_PCBs] Re: table could be usefull for pcb drilling:
2007-04-21 by Stefan Trethan
fOn Sat, 21 Apr 2007 20:32:42 +0200, rmustakos ... It would probably take very long compared to manual positioning. ST
Re: [Homebrew_PCBs] stripping wirewrap wire
2007-04-21 by Peter Harrison
... Perhaps not. There are indeed a large number of cutters and strippers. The variety available for Xcelite alone is absurdly large. without seeing them and
Re: table could be usefull for pcb drilling:
2007-04-21 by rmustakos
... I don t know about _your_ hands, but with my hands I have to fight shaking and poor vision. With this (and later cnc), I only have to align one or two
RE: [Homebrew_PCBs] Re: table could be usefull for pcb drilling:
2007-04-21 by Tony Smith
... What s wrong with sticking stepper motors on it? You too could avoid boredom, lungs full of fibreglass dust, and a headache from the Dremel noise. You can
Re: [Homebrew_PCBs] stripping wirewrap wire
2007-04-21 by Roland F. Harriston
Peter Harrison: No Brainer. Do a Google for wire wrap tools. Dozens of hits for wrappers, strippers, etc. OK Tools makes some inexpensive items. Roland F.
Re: table could be usefull for pcb drilling:
2007-04-21 by docstein99
... I ve been to harbor freight and seen that up close. It looks like a fun little toy. Using it for drilling holes appears to be like overkill. Whats wrong
Re: [Homebrew_PCBs] stripping wirewrap wire
2007-04-21 by lists
In article , ... In all my years in electronics, both as a professional and hobbyist, I have only come across one supplier with
Spray Etching
2007-04-21 by electrophilip
I have just tried ferric chloride for the first time, it seems to etch faster & better than ammonium persulphate. Has anyone have simple plans for a spray
Re: Printing with silver nitrate ( tin nitrate )
2007-04-21 by torquemada40223
... http://www.newscientisttech.com/article/dn11632-modified-ink-printer-churns-out-electronic-circuits.html ... Perhaps you could make the traces, and then
Re: [Homebrew_PCBs] stripping wirewrap wire
2007-04-21 by Stefan Trethan
On Sat, 21 Apr 2007 11:05:19 +0200, Peter Harrison ... Which isolation does your wire have? There is usually a stripping tool on a manual wirewrapping tool,
Re: [Homebrew_PCBs] stripping wirewrap wire
2007-04-21 by John P. Anhalt
The insulation on the wire I use is heat sensitive. I run the tip of my soldering iron along one side. That essentially removes a small strip of insulation.
stripping wirewrap wire
2007-04-21 by Peter Harrison
Hi When I need to use a bit or wirewrap wire to patch a board, I find it really hard to strip the ends without nicking the wire. Once nicked, it is only a
table could be usefull for pcb drilling:
2007-04-21 by rmustakos
I just found this at harbour freight: http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=94276 for $60, a 8 inch by 7 inch travel milling/press
Re: [Homebrew_PCBs] Re: Re: Disposing of Chemicals
2007-04-21 by Stefan Trethan
On Fri, 20 Apr 2007 23:03:09 +0200, Adam Seychell ... The ability of a child (or just any exceedingly stupid person) to distinguish between a food container
Re: [Homebrew_PCBs] Printing with silver nitrate ( tin nitrate )
2007-04-20 by Lez
... made me wonder if I changed my process, plotting a resist onto copper, if I changed the pen for a pen filled with a conductive ink/paint, would remove the
Re: [Homebrew_PCBs] Re: Re: Disposing of Chemicals
2007-04-20 by Adam Seychell
... Secure? I remember seeing pure copper hydroxide sold at the garden store in plastic bag inside a cardboard box. Sure it had all the regulatory labeling
Re: [Homebrew_PCBs] Printing with silver nitrate ( tin nitrate )
2007-04-20 by Gokoko -
On Apr 20, 2007, at 2:38 PM, Frederick Garbrecht wrote: Saw this initially on New Scientist Tech:
Printing with silver nitrate
2007-04-20 by Frederick Garbrecht
Saw this initially on New Scientist Tech: http://www.newscientisttech.com/article/dn11632-modified-ink-printer-churns-out-electronic-circuits.html Direct
Re: Re: Disposing of Chemicals
2007-04-20 by Len Warner
... As would be NOT using food containers or other insecure household containers, if common sense were as common as its name implies and distributed widely
Re: Mouthwash
2007-04-20 by izzo47
Ted got me thinking about the heat. I tried using the Microwave oven to preheat just the paper. First 20 seconds not soft enough, 30 second, 100 percent of
Re: Mouthwash
2007-04-20 by izzo47
I tried the Peel-n-Press blue and you are correct, it will not work. I was thinking about the heat also, (too hot) fuses the toner deeper/harder into the paper
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-19 by Adam Seychell
... Electroless tin solutions will typically contain large amounts of thiourea as the most hazardous ingredient. Inorganic tin is relatively harmless. For
Re: [Homebrew_PCBs] Re: Harbor Freight Catalog Paper Stock
2007-04-19 by Roland F. Harriston
Ted: Thanks for the detailed procedure for using the Brother HL-2040 printer. I m sure that the quality of the toner in any printer is important in the type of
Re: Mouthwash
2007-04-19 by Ted Bruce KX4OM
You might do a search on my user name, as I have made several posts on the Brother HL-2040 problems over the past year and a half. It simply would not work
Re: Mouthwash
2007-04-19 by izzo47
THANKS! I have a Brother HL-2040. I made 5 boards ok, then a run of bad traces......Still trying to find the right paper.
Re: Disposing of Chemicals
2007-04-19 by pcb.easy
Snip ... Ed, Give your local haz-mat a call, they will be very helpful. Here in Portland Oregon they have a site that is open 6 days a week. It is free, they
Re: [Homebrew_PCBs] Re: Hammermill Office One Glossy Paper
2007-04-19 by Roland F. Harriston
Phil: Thanks for the additional information regarding Hammermill 163020. None of my local Office Max or Office Depot stores were able to order the paper
Re: Hammermill Office One Glossy Paper
2007-04-19 by pgdion1
Sorry for my sluggishness, this is a bad week! I am using the Hammermill paper and it s working great for me. Roland is correct, I checked my package and it
Re: Disposing of Chemicals
2007-04-19 by ed.slatt
Hello Group, I use Tinnit to tin plate my boards after etching. Tinnit is an electroless tin-plating solution. The packaging indicates that it contains
Re: Inkjet printer for direct PCB printing.
2007-04-19 by docstein99
I ve seen that method described before, very interesting. I m not sure how that delicate system would handle something like high-current leads for motor
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-19 by Adam Seychell
... The labeling is for the sake of people who can read and interpret danger signs. As for the remaining people, you simply make the substance inaccessible to
Re: Disposing of Chemicals
2007-04-19 by Len Warner
... Unless the folk in your neighbourhood are exceptionally gifted, small children don t read - but the do recognize shapes and they do investigate many things
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-19 by Stefan Trethan
On Wed, 18 Apr 2007 23:39:03 +0200, Adam Seychell ... NOT with poison signs. If i see someone writing just poison on a bottle i want to feed the stuff to
Re: Disposing of Chemicals
2007-04-19 by pcb.easy
... Cu(OH)2. ... Gentlemen, My goal is not to collect and store Cu(OH)2, but rather reduce the waste by removing the excess water. The reason for wanting to
Inkjet printer for direct PCB printing.
2007-04-19 by Leon Heller
http://www.newscientisttech.com/article.ns?id=dn11632&feedId=online- news_rss20 Leon
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-18 by Adam Seychell
... And thats why you label your containers, with poison signs. ... Yes, if end goal of the OP was to ditch the etchant, then I d agree completely. pcb.easy
Re: Disposing of Chemicals
2007-04-18 by Len Warner
... No DONT! Do not use anything which looks like a food container (and especially a soft drink bottle) particularly if you expect small children to be around
Re: [Homebrew_PCBs] Has anyone tried an Ironing Press instead of an iron to transfer laser toner?
2007-04-18 by Stefan Trethan
On Mon, 16 Apr 2007 03:29:45 +0200, chalaco_51 ... i doubt it ll work good (uneven pressure). If you want a real sturdy laminator take
Re: [Homebrew_PCBs] Re: Has anyone tried an Ironing Press instead of an iron to transfer laser toner
2007-04-18 by Roland F. Harriston
I wonder how many preheat the copper clad with the iron prior to laying down the paper? I find that I get much, much better results when I preheat. Roland F.
Re: [Homebrew_PCBs] Re: Mouthwash
2007-04-18 by Roland F. Harriston
Buddy Brown: Thanks for the information. I suspected all-along that the problem was with the toner, rather than the printer itself. Roland F. Harriston
Re: Mouthwash
2007-04-17 by Len Warner
... Does this contain alcohol? ... Alcohol would explain most of that. In which case, the cheapest supermarket brand would do, unless you like to choose the
Re: Has anyone tried an Ironing Press instead of an iron to transfer las
2007-04-17 by Len Warner
... 100lbs over 36 or more square inches is less than 2.8 lb/sq in. I m sure most people s ironing technique, or the pressure rollers of a laminator, give a
Re: Has anyone tried an Ironing Press instead of an iron to transfer laser toner
2007-04-17 by sethreeder
I m glad you mentioned this because it gave me an idea which has never occured to me before. It would probably yeild very similar results to a press if you
Re: Mouthwash
2007-04-17 by art_lammoglia
... I have an older Brother HL-5040 and have never been successful using it for toner transfer ( a real shame since its a great printer ). Art
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-17 by Adam Seychell
... Evaporation will release the the free HCl and you should be left with hydrated CuCl2 crystals. I found it can take a while to dry. The only purpose of
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-17 by Adam Seychell
pcb.easy wrote: One last question about the storage of dry copper ... Its a hydroxide so it will react with acid to form a salt again. (e.g add vinegar to get
Re: Mouthwash
2007-04-17 by Buddy Brown
Hi all, I also have a Brother printer. It can be made to work, But, it takes a little more pressure and a lot more Ironing time, about 8 to 9 minutes. Also,