Photoresist is the simplest and easiest method
2003-10-27 by nedtron@earthlink.net
Greetings, I fully agree. The newer generation of pre-sensitized PCBs are vastly improved not requiring special exposure lamps and use less concentrated
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Re: [Homebrew_PCBs] Photoresist is the simplest ans easiest method
2003-10-27 by Adam Seychell
... I agree with all the above. Once you learn how to make good photomasks, the photomethod is by far the best way to go. It seems the more equipment and
Photoresist is the simplest ans easiest method
2003-10-27 by zohar_golan
Hi all, throught the years, I ve tried all the methods of homemade PCB and the best and simple way is to use the precoated PCBs. I was really amazed by the
Re: Laser toner transfer & "blender pen" transfer
2003-10-27 by wheedal99
I m not sure that necessarily sounds like the transport medium; more a technique issue. If you use the wrong heat/pressure it is fairly easy to hose up toner
Re: Laser toner transfer
2003-10-26 by Moore
I to have just been playing with toner transfer. Plain paper, transparency paper and coated ink jet paper, plus PNP Blue. The PNP blue is definitely easier,
Re: [Homebrew_PCBs] Laser toner transfer & "blender pen" transfer
2003-10-25 by Stefan Trethan
... well, staples or office max is a few tousand kilometers away from me (the nearest). So this is NOT an option, but thanks for the suggestion ;-) . Jetprint
Re: [Homebrew_PCBs] Laser toner transfer & "blender pen" transfer
2003-10-25 by Alan King
... Not sure I d expect it to work well with magazine paper, most are very slick and solid surfaced, fusing might tend to spread the toner out. Sounds like
[Homebrew_PCBs] Laser toner transfer & "blender pen" transfer
2003-10-25 by Stefan Trethan
Hi did today try the iron on again. Damn thing won t work. used different Papers (magazine). Problems: the lines get sqeezed, turn out broader than they should
Re: [Homebrew_PCBs] Laser toner transfer
2003-10-24 by Stefan Trethan
ok, i decided i can t sleep without reading that completely... i have some questions. a) you use jetprint photo paper. this is inkjet paper right? I have none
Re: [Homebrew_PCBs] Laser toner transfer
2003-10-24 by Stefan Trethan
thanks for that.. will try tomorrow. too late today, do you set printer to darkest? st
Laser toner transfer
2003-10-24 by Alan King
Hi, Just joined the group, mainly to share this for the moment. If you ve tried the laser toner transfer and didn t get near perfect results, you should
OT Re: ACME thread
2003-10-21 by Steve
I think this is straying a bit too far afield. In any case, this list would be more likely to not only answer your request, they probably have that engineering
Re: ACME thread
2003-10-20 by Dave Mucha
... where. ... What exactly are you looking for ? I can take a photo of some ACME but that is much different than engineering information.
ACME thread
2003-10-20 by mr_peja
Hi group, Sometime I founded Acme thread drawing, but I can now remember where. Please, help me Peja
Re: [Homebrew_PCBs] Delrin
2003-10-20 by JanRwl@AOL.COM
In a message dated 10/19/2003 10:35:40 PM Central Standard Time, ron_amundson@hotmail.com writes: Raw acetal will do that, but the black delrn stuff I use has
Re: [Homebrew_PCBs] Delrin
2003-10-20 by Ron Amundson
Raw acetal will do that, but the black delrn stuff I use has a uv stabilizer. Even with accelerated UV exposure testing it holds up well. I have some grey non
Re: [Homebrew_PCBs] Delrin
2003-10-19 by JanRwl@AOL.COM
In a message dated 10/19/2003 2:22:36 PM Central Standard Time, ron_amundson@hotmail.com writes: the biggest problem is that it is a little difficult to bond
Re: [Homebrew_PCBs] Delrin
2003-10-19 by Ron Amundson
Delrin, a tradmarked version of acetal is a really decent plastic. It can take much higher temperatures than ABS is easy to machime is fairly chemical
Re: aluminium trays for developing/etching
2003-10-19 by zohar_golan
Thank you Guys, Got the idea. I used a plastic sandwich boxes. It was cleaned easily, and I will be able to use it again and again and again.... ZOhar ... for
Re: [Homebrew_PCBs] Re: [OT] Diluting used etchant
2003-10-18 by Stefan Trethan
On Sat, 18 Oct 2003 03:02:11 +0100, Mike Cowlishaw ... Yeah, advertise the solved copper in it clever and you will find thousands of
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-18 by Stefan Trethan
thanks adam.... mixture of salts... i see.. i will read the link you provided.. currently occupied with plotting to pcb.. st
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-18 by Adam Seychell
... All the common etchants (persulfates, ferric chloride, cupric chloride, HCl+H202) that finished etching copper will precipitate copper(II) hydroxide
Re: [Homebrew_PCBs] Which program/s can "Tile" PCB's
2003-10-18 by Leon Heller
... I think that most packages should be able to do this. Pulsonix, which I use, has an option when generating Gerber files to step and repeat . Even if the
Re: [Homebrew_PCBs] aluminium trays for developing/etching
2003-10-18 by Leon Heller
... About the worst thing you could use. Both developer and etchant will eat aluminium. I use cheap plastic food containers. Leon -- Leon Heller, G1HSM Tel:
Re: [OT] Diluting used etchant
2003-10-18 by Mike Cowlishaw
... Hmm, now there s an idea. Rent a very large vat, dilute it a billion times or so with water, then bottle it and sell it (at a huge profit) as a
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-17 by Stefan Trethan
... ;-))) What happens if you neutralize the stuff, then let it dry out it an open tray? What s left there? copper, in which form? and what is the result of
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-17 by Adam Seychell
... Perulfates are unstable and will decompose to sulfate + acid. Of all the talk about morals of pouring etchant down the drain, it is only the copper loaded
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-17 by Ted Huntington
Can Ammoinium Persulfate be poured down the drain? Ted ... ADVERTISEMENT [Click Here!] ... -- Ted Huntington Programmer Analyst I Main Library University of
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-17 by Russell Shaw
... tis plastique http://www.google.com.au/search?q=delrin+plastic&ie=UTF-8&oe=UTF-8&hl=en&btnG=Google+Search&meta=
RE: [Homebrew_PCBs] what to do once I'm done
2003-10-17 by Miroslav Pejic
Hi group members, Maybe is OT, but I see you knew about chemistry. Do somebody knew what is delrin Peja ... From: Russell Shaw [mailto:rjshaw@iprimus.com.au]
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-17 by Russell Shaw
... I ve tried etching thin (0.2mm) brass and copper sheet in FeCl and the action took *hours* and didn t give a clean finish. Solution was 1:1 dilution with
what to do once I'm done
2003-10-17 by nedtron@earthlink.net
Greetings, Save the ferric chloride in a plastic container with a good seal for future circuit boards and / or etching projects. The ferric chloride can be
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-17 by Adam Seychell
The EPA only allow a few ppm limit of copper discharged. But since we are not operating an industrial plant the total copper we put down the drain might be
Re: what to do once I'm done
2003-10-16 by roel_cnc
... software, ... first ... way ... Put the etch in a plastic can alteast 4 times the size of the etch volume. (say 1 liter etch) Thin it with the same amount
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-16 by Stuart Winsor
In article , ... It rather depends on your local environmental laws. The COSHH (Control of substances hazardous to health) data sheet
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-16 by JanRwl@AOL.COM
In a message dated 10/16/2003 10:54:30 AM Central Standard Time, geovar13@hotmail.com writes: However, of all the webpages and articles I found on how to make
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-16 by Stefan Trethan
low cost, high speed (is 12 seconds with no heating appreciated?). The disadvantage is that you need to take more care of the resist used. the hcl is more
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-16 by M.
... Hello Stefan, Besides no waste, what are the advantages to the HCl- H2)2 process? Best regards Marvin Dickens __________________________________ Do you
Re: what to do once I'm done
2003-10-16 by wheedal99
... software, ... first ... way
Re: [Homebrew_PCBs] what to do once I'm done
2003-10-16 by Stefan Trethan
well, neutralizing with develpoer will remove the etching behavoir.... BUT the copper (which is a heavy metal i think, potentially dangerous to environment) is
what to do once I'm done
2003-10-16 by mr_gees100_peas
I m new at this and I want to do my first pcb. I have a cad software, copper board, ferric chloride, drills, ect, ect. By doing a lot of reading I think I have
Re: [Homebrew_PCBs] Etchant Temperature
2003-10-16 by nedtron@earthlink.net
Greetings, We use 60°C (140°) to 65°C (149°F) with aggressive compressed air agitation. Higher etching temperatures result in shorter etching times with
Re: [Homebrew_PCBs] Correct graphic size
2003-10-16 by Markus Zingg
... Phil, not really freeware, but I use CorelDraw with the other wise identical configuration like you with great sucess. However, there are always cheap
Re: [Homebrew_PCBs] Etchant Temperature
2003-10-16 by Leon Heller
... I have the etchant container i n a larger container partly filled with boiling water from the kettle. The temperature of the etchant is probably about 60C
Re: [Homebrew_PCBs] Correct graphic size
2003-10-15 by Stefan Trethan
Please, Word is for sure no proper imaging tool. And powerpoint in my opinion also not. There are free image processing tools. One quick solution may be to use
Correct graphic size
2003-10-15 by Moore
I m using eagle, and doing a print to file to create a postscript file then ghostscript/gsview to convert to png or bmp graphics file. I d like to use WORD or
Re: Which program/s can "Tile" PCB's
2003-10-15 by Dave Mucha
... they ... Hey, at least I got the word to start with a p ! I was referring to the houses that offer 3 boards up to 144 sq inches for $99.00. it is 3
Re: [Homebrew_PCBs] Re: aluminium trays for developing/etching
2003-10-15 by Adam Seychell
Cleaning is at most a quick rinse. I don t even rinse the developer, just dump the solution and put away in the storage box for next time. Dried salts left
Re: Which program/s can "Tile" PCB's
2003-10-14 by roel_cnc
... and ... X ... long ... the ... board ... connected. ... Hi, the right word is panelize and if you got a decent pcb house they will do it for yua Roel
Re: aluminium trays for developing/etching
2003-10-14 by zohar_golan
... Probably nothing is wrong with it, but I like the idea of throwing away the 10 cent trays after use instead of having to clean them. ... for ...