Re: [Homebrew_PCBs] silcone paper
2005-05-09 by Martin Haverland
Soooooooooo, i did manage to get the apple working again! i found an evil streak of paper at the most unreal place...and got angry because i could have seen it
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Re: [Homebrew_PCBs] silcone paper
2005-05-09 by Stefan Trethan
On Mon, 9 May 2005 19:48:09 +0200, Martin Haverland ... Thanks, i will look at the Kyocera printers when i need to replace the Lexmark. bad thing with high
Re: [Homebrew_PCBs] silcone paper
2005-05-09 by Martin Haverland
Ha, the HP s of today became crappier and crappier (the new laserjets feel like toys and are expensive), we had HP LJ 1100 and 1200 when we swapped HP at work
Re: [Homebrew_PCBs] silcone paper
2005-05-09 by Stefan Trethan
On Mon, 9 May 2005 18:05:01 +0200, Martin Haverland ... Always look at the toners too. I got a Lexmark M412 for under 20eur, without toner. But the toner was
Re: [Homebrew_PCBs] silcone paper
2005-05-09 by Martin Haverland
Thank you for the hint, i did find out about in the meantime... (prices are *insane* at the e-shops) ...but now i really have to buy a new printer...paper feed
[Homebrew_PCBs] silicone paper
2005-05-09 by Stefan Trethan
Guys, doing a successful proof of concept and actually using something are two totally different things. My first try today with silicone paper was not that
Re: INkejet printing right on a circuit board....
2005-05-09 by mycroft2152
... I ... exposed So you re saying no solvent based system will work in an inkjet printer? So I guess, that normal inkjet ink will not work. Its a matter of
Re: [Homebrew_PCBs] Re: INkejet printing right on a circuit board....
2005-05-09 by Stefan Trethan
On Sun, 08 May 2005 22:03:22 -0000, mycroft2152 ... You don t understand the problem! I can give you 10000 laquers that wet copper and
Re: [Homebrew_PCBs] silcone paper
2005-05-09 by Stefan Trethan
On Mon, 9 May 2005 01:04:06 +0200, Martin Haverland ... get a new toner at ebay, it is ridiculous what they cost in shops. ST
Re: [Homebrew_PCBs] silcone paper
2005-05-08 by Martin Haverland
oh man... seems, that your method works really good and cheap... but my printer is about to leave me...prints are too weak and toner is possibly more expensive
Re: [Homebrew_PCBs] Re: INkejet printing right on a circuit board....
2005-05-08 by KD5NWA
... But because it dries by evaporation it will clog up the jet nozzles, I think that is what the problem is, UV ink does not get hard until exposed to UV,
Re: INkejet printing right on a circuit board....
2005-05-08 by mycroft2152
... laquer that ... evaporation of ... spare ... of this ... St, Po-tay-to, po-tah-to. When the photresist is cured, it then becomes impervious to ecthants.
Re: [Homebrew_PCBs] Re: INkejet printing right on a circuit board....
2005-05-08 by Stefan Trethan
On Sun, 08 May 2005 19:57:27 -0000, mycroft2152 ... No, it s something entirely different. The photoresist is for all intents and
Re: INkejet printing right on a circuit board....
2005-05-08 by mycroft2152
... Isn t that a moot point. just a matter of terminology. The fluid is applied to the substrate and then post cured. The result is a film or design impervious
Re: [Homebrew_PCBs] Re: INkejet printing right on a circuit board....
2005-05-08 by Stefan Trethan
On Sun, 08 May 2005 19:05:22 -0000, mycroft2152 ... That is not uv curing, like in uv curing...... The ink is hard even without
Re: INkejet printing right on a circuit board....
2005-05-08 by mycroft2152
Hi Kent, Don t us homebrewers already have the equivalent of an UV curing ink with the correct wetting out and resist properties? I m suggesting the use of the
Re: [Homebrew_PCBs] silcone paper
2005-05-08 by Stefan Trethan
On Sun, 8 May 2005 18:13:32 +0200, Martin Haverland ... The acetic one was E-COLL Standardsilikon. A address in Austria is on the Package. ST
Re: [Homebrew_PCBs] silcone paper
2005-05-08 by Martin Haverland
I m really interested in your results, stefan, since i have some pcbs to do. What brand was the last silicone you used with your best results? since i live
[Homebrew_PCBs] silcone paper
2005-05-08 by Stefan Trethan
I need to get some PCBs done, no matter if the tank is ready or not, so i had a chance to do some more experimenting. The neutral silicone does not work well
Re: [Homebrew_PCBs] Re: INkejet printing right on a circuit board....
2005-05-08 by rruss45826@aol.com
In a message dated 5/7/2005 9:26:20 AM Eastern Daylight Time, lcdpublishing@yahoo.com writes: Hi Kent, I suspect the ink in your printer is water based ink,
Re: INkejet printing right on a circuit board....
2005-05-07 by lcdpublishing
I believe my HP plotter (HP DesignJet 500) uses UV cured inks. I don t have the time right now to check on it though. I also know that it can print a fine
Re: [Homebrew_PCBs] INkejet printing right on a circuit board....
2005-05-07 by Stefan Trethan
On Sat, 7 May 2005 18:59:14 -0300, Alexandre Souza ... and also limits resolution to 300dpi, which is not really that much.. I used a 600dpi printer in the
Re: [Homebrew_PCBs] INkejet printing right on a circuit board....
2005-05-07 by Alexandre Souza
... Tip: Use the OLDEST inkjet type avaiable. The nozzles are bigger, so there is less chance of clogging up. -- No virus found in this outgoing message.
Re: [Homebrew_PCBs] INkejet printing right on a circuit board.... Links
2005-05-07 by John Kent
Here are a few links concerning the subject of direct printing on copper ... http://www.smh.com.au/articles/2003...l?oneclick=true Article on conductive inks
Re: [Homebrew_PCBs] INkejet printing right on a circuit board....
2005-05-07 by Stefan Trethan
Please do keep us informed if you find a suitable UV curing ink. I agree it seems the most promising. I would not mind putting the wet pcb under UV lamps for
Re: [Homebrew_PCBs] INkejet printing right on a circuit board....
2005-05-07 by John Kent
Thank you for the reply, I found it very interesting. As you say part of the answer is in cleaning or preparing the copper surface but most of my problems lay
Re: [Homebrew_PCBs] INkejet printing right on a circuit board....
2005-05-07 by pebo festus
to john kent: i have chopped a printer and gotten the pcb to feed through and it printed the art work good, buuuut you have to clean the pcb very well or the
Re: [Homebrew_PCBs] INkejet printing right on a circuit board....
2005-05-07 by Stefan Trethan
On Sat, 7 May 2005 14:09:56 +0100, John Kent ... agree!! To me it seems the marker ink contains stuff that wets the metal, and allows
Re: INkejet printing right on a circuit board....
2005-05-07 by lcdpublishing
Hi Kent, I suspect the ink in your printer is water based ink, that would not flow out as you would hope. I think a solvent based ink would be needed for
Re: [Homebrew_PCBs] INkejet printing right on a circuit board....
2005-05-07 by John Kent
A quick way of looking at the problems involved is to tape a piece of aluminium Kitchen foil to a sheet of A4 paper and then print a PCB layout onto it using a
Re: [Homebrew_PCBs] INkejet printing right on a circuit board....
2005-05-07 by Earl T. Hackett, Jr.
I Googled on flatbed inkjet printer - essentially what you re asking for. Here s one that might work http://www.signweb.com/outdoor/prods/Scitex.html Just a
Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-07 by Stefan Trethan
On Sat, 7 May 2005 06:27:46 -0400, Earl T. Hackett, Jr. ... well, there s a gas in there too.. ST
Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-07 by Earl T. Hackett, Jr.
I should have been more specific - we use fluorescent lights. As for vacuum chambers, I just measured mine. It s a commmercial unit made of an acrylic type
Re: [Homebrew_PCBs] WinLINE Plotter Driver
2005-05-07 by Stefan Trethan
On Fri, 06 May 2005 07:11:48 -0000, airelectric_rwrpg ... wline wouldn t approve of you sharing a license. Why don t you simply open a dos box and copy the
Re: RE : [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-07 by JanRwl@AOL.COM
In a message dated 5/6/2005 2:16:34 A.M. Central Daylight Time, rjshaw@netspace.net.au writes: (980 millimeters, for you metric buffs, , IIRC) WYB 760 mm!
Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Roy J. Tellason
... Even that s a little high, 12KV was more common. ... 25KV was more common, and in the earlier tube stuff the shunt-type regulator tube would age, and
Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Norm Stewart
... B/W tv s used 15Kv or so accelerating voltage - created soft x-rays. Color sets needed more energetic electrons for the color phosphors, so used ~23Kv,
INkejet printing right on a circuit board....
2005-05-06 by lcdpublishing
Hi Group, I am wondering if there is a such a device already out there that can print directly onto a circuit board. I see essentially two uses for such a
Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Roy J. Tellason
... It takes a certain technique to work with glass and have it not shatter. I found that out the hard way back when I was into messing around with chemistry
Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Stefan Trethan
On Fri, 6 May 2005 14:57:54 -0400, Roy J. Tellason ... It is lower than athm., put a propane torch against it and the softening glass will be pulled in. (yes i
Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Roy J. Tellason
... I was of the impression that it was at somewhat lower than atmospheric pressure, otherwise you wouldn t get that pop when they break. ... As close as
Re: [Homebrew_PCBs] Re: collimator help
2005-05-06 by Cristian C
No way, UV lasers are too weak. Lens collimator source is what I m asking for. Thanks. Earl T. Hackett, Jr. wrote: laser beams are
Re: [Homebrew_PCBs] Re: collimator help
2005-05-06 by Cristian C
No way, UV lasers are too weak. Lens collimator source is what I m asking for. Thanks. Earl T. Hackett, Jr. wrote: laser beams are
Re: [Homebrew_PCBs] Re: collimator help
2005-05-06 by Cristian C
I want to collimate a 30 degree UV Led Array made by Nichia. Steve wrote:I think he means he wants to collimate a UV laser beam. Steve
Re: RE : [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Russell Shaw
... More like 760mm. 1 Torr = 1mm Hg.
WinLINE Plotter Driver
2005-05-06 by airelectric_rwrpg
Hello, I recently bought a HP7470A plotter for making PCBs, but can t seem to find a freeware/cracked version of the WinLINE plotter driver which is needed for
Re: RE : [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Norm Stewart
The 30 Hg is the height in inches of a column of mercury supported by the vacuum (980 millimeters, for you metric buffs, , IIRC) - NOT the weight in pounds.
Re: [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Stefan Trethan
... I did not know one could pull a vacuum of more than one athmosphere ;-) On which planet (or under how much water) do you need to be to do this? Implosions
Re: RE : [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by rruss45826@aol.com
In a message dated 5/6/2005 1:21:48 A.M. Eastern Daylight Time, robert.hedan@videotron.ca writes: How can you pull the vacuum down 2 atmospheres? Assuming I
RE : [Homebrew_PCBs] Re: Cables and connectors - vacuum chamber
2005-05-06 by Robert Hedan
Ok, so an exterior testing session is warranted and no dangerous operations must be done while the contraption is on. I can find a sand pit and put the