Re: [Homebrew_PCBs] Re: C84 Conversion
2007-03-08 by Stefan Trethan
On Thu, 08 Mar 2007 13:46:52 +0100, Paul Sturpe ... It sucks through the black pad right under the head, so it is attached at the
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Re: [Homebrew_PCBs] conductive/insulating inks for inkjet?
2007-03-08 by Tony Smith
... Looking at some of those prices make me wonder what temperature gold melts at - it might be cheaper. :) Tony
Re: C84 Conversion
2007-03-08 by Paul Sturpe
... driving ... in ... going ... blocked, ... Stefan, I finally got started to dis-assemble the C84. This gives me a better look at the mechanism. I have
Re: [Homebrew_PCBs] conductive/insulating inks for inkjet?
2007-03-08 by Sebastien Bailard
... Tony, Smallparts.com sells low temperature alloys of that kind. http://www.smallparts.com/products/descriptions/lma.cfm My group has been experimenting
Re: Laser printer help
2007-03-08 by docstein99
Ok, now you ve lost me. Can I can some clairity please, I truely dont understand-- ... Yes they are like $64 - $120; I paid like $15 for the remanufactured
Re: Laser printer help
2007-03-08 by teknochaman
Hi, Did you consider the cost of a new cartridge ? Sooner or later you ll need that. In my case I sent to scrap an old Laserjet IIIp after a loong time of
Re: [Homebrew_PCBs] Re: cheap UV light sources?
2007-03-08 by Stefan Trethan
... They do aluminum layers now, for heatsinks. ST
Re: [Homebrew_PCBs] Re: Toner Transfer
2007-03-08 by Stefan Trethan
On Thu, 08 Mar 2007 01:22:50 +0100, Ted Bruce KX4OM ... Try wiping it wet with a piece of foam rubber. The cell structure seems to grab
Re: Toner Transfer
2007-03-08 by Ted Bruce KX4OM
Jim, I found the same problem with residue in the space between the traces as you did, using clay-coated inkjet paper and glossy photo inkjet paper. (Good tip
Re: [Homebrew_PCBs] Re: cheap UV light sources?
2007-03-07 by otc_friend
You can make your own brass pcb. I see no problem as such. - Henry www.ehydra.dyndns.info ... Von: Sebastien Bailard An:
RE: [Homebrew_PCBs] Laser printer help
2007-03-06 by Russ Blakeman
The 6l is a good printer usually only suffering from multiple feed problems. A lot of rebuilds are junk, many from China now. If you can scan something that
Re: [Homebrew_PCBs] Laser printer help
2007-03-06 by Martin Klingensmith
I can t really tell you about the 6L specifically, but I can tell you that I bought an HP LJ 4 and then a Verbatim brand remanufactured toner cartridge which
Laser printer help
2007-03-06 by docstein99
Looking for some advice from laser printer people here, since it looks like so many people use the toner transfer, which I would like to give a try. I am using
Re: [Homebrew_PCBs] Re: cheap UV light sources?
2007-03-06 by Sebastien Bailard
There is no such thing as a brass pcb. People etch thin sheets of brass for making models. For example:
Re: [Homebrew_PCBs] green TRF, toner transfer system
2007-03-06 by DJ Delorie
... I use that. The manufacturer is Pulsar, you might get more search hits with that. Do you have specific questions about it? A small TT board I did:
green TRF, toner transfer system
2007-03-06 by k6txd
Hello Group Has anyone used the toner transfer system from directetch.com for making pc boards?
Re: [Homebrew_PCBs] sensitized boards
2007-03-05 by Richard
It surely may be although it actually states Reflective Infared Heat Lamp on the lense. I know it will blind you and hurt your eyes if you do not wear eye
Re: [Homebrew_PCBs] sensitized boards
2007-03-05 by John P. Anhalt
Richard, The bright white appearance of your lamp makes me think you actually have a sun lamp (that is, one that puts out a lot of near UV light) rather than
Re: [Homebrew_PCBs] Circle
2007-03-05 by Stefan Trethan
... If not many need to be done i suppose approximating the shape with any type of shear or saw will do, followed by sanding to the final dimensions. Dont
Re: Circle
2007-03-05 by Chris Horne
... That was one of the main reasons for me converting an X1 micro mill to CNC. I have a proxxon clamped to the head so I can drill the boards and then cut the
Re: [Homebrew_PCBs] Circle
2007-03-05 by JanRwl@AOL.COM
In a message dated 3/4/2007 12:38:27 P.M. Central Standard Time, alan00463@yahoo.com writes: Has anybody ever cut, or tried to cut, a PCB in the form of a
Re: [Homebrew_PCBs] sensitized boards
2007-03-05 by Richard
Oh, it is marked as Reflective Richard ... From: John P. Anhalt To: Homebrew_PCBs@yahoogroups.com Sent: Sunday, March 04, 2007 6:02 PM Subject: Re:
Re: [Homebrew_PCBs] sensitized boards
2007-03-05 by Richard
There is no number on the lamp. It s bright white. Richard ... From: John P. Anhalt To: Homebrew_PCBs@yahoogroups.com Sent: Sunday, March 04, 2007 6:02 PM
Re: [Homebrew_PCBs] sensitized boards (IR vs UV)
2007-03-05 by Roland Harriston
John P. Anhalt: Your point is well-taken. Infrared (IR) is on one side of the visible spectrum, and Ultraviolet (UV) is on the other side. Big differences in
Re: [Homebrew_PCBs] sensitized boards
2007-03-05 by John P. Anhalt
Thanks for the information, Richard. That is interesting. In graduate school, we used sun lamps for near UV. The reactions we were studying were similar to
Re: [Homebrew_PCBs] Toner Transfer
2007-03-04 by Jim Hutchinson
... Thanks for the info Stepfan ... it sounds as my paper is similar to yours (I will go to their web site) ... I find paper manufacturing company s for the
Re: [Homebrew_PCBs] sensitized boards
2007-03-04 by Richard
250 watt 120 volt GE Infared Heat Lamp. Spaced 11 from the pc board with an exposure time of 75 to 90 seconds. I generally do the 90 seconds. I bought it at
Re: [Homebrew_PCBs] Toner Transfer
2007-03-04 by Stefan Trethan
On Sun, 04 Mar 2007 22:55:27 +0100, Jim Hutchinson ... I m now using verbatim glossy photo paper A4 100 Sheets 210x297mm 150gsm for use
Re: [Homebrew_PCBs] Toner Transfer
2007-03-04 by Jim Hutchinson
... I m still learning ... if you have a good rip-off paper why not say the make and source so I can have the same results ... I have used some commercial
Re: [Homebrew_PCBs] Toner Transfer
2007-03-04 by Stefan Trethan
On Sun, 04 Mar 2007 09:00:12 +0100, Jim Hutchinson ... I think you should look at some other papers. I would be disappointed if i
Re: [Homebrew_PCBs] Circle
2007-03-04 by Cristian
... I can do that on my CNC milling machine. Cristian
Circle
2007-03-04 by alan00463
Has anybody ever cut, or tried to cut, a PCB in the form of a circle? If so, how?
Re: sensitized boards
2007-03-04 by dandumit
... As far as I know the UV lasers are extremly expansive. Did you found a cheap source for such thing ?
Re: [Homebrew_PCBs] sensitized boards
2007-03-04 by John P. Anhalt
Richard, Can you give a little more detail about the heat lamp that you use, such as brand, wattage, and identifier number on it? Thanks. John ... From:
Re: [Homebrew_PCBs] Toner Transfer
2007-03-04 by Gary Hoyles
Great idea i will give it a try gary ... From: Jim Hutchinson To: PCB_Homebrew Sent: Sunday, March 4,
Re: [Homebrew_PCBs] sensitized boards
2007-03-04 by Richard
I use Infared Light to expose my positive sensitized boards because I can expose them in about 90 seconds using a IR heat lamp. Richard ... From: docstein99
Re: [Homebrew_PCBs] Re: sensitized boards
2007-03-04 by Sebastien Bailard
... This might be a good starting point. I would suggest reading the entire thing, rather than skimming, but they re your eyeballs. X)
Re: sensitized boards
2007-03-04 by dandumit
... As far as I know the UV lasers are extremly expansive. Do you have a cheap source for UV laser diodes ? Daniel
Toner Transfer
2007-03-04 by Jim Hutchinson
Hello to HB_PCB group I am a new member and this is my first post ... the common thread in the TT process is difficultly in cleaning the paper residue from the
Re: sensitized boards
2007-03-03 by docstein99
... I had to use a video camera to check to see if the diode was on or off. Otherwise there is no way to tell whats going on because its invisible. And when
Re: sensitized boards
2007-03-03 by javaguy11111
I have had similar thoughts after seeing this website for hacking dvd laser diodes. http://www.felesmagus.com/pages/lasers-howto.html
Re: [Homebrew_PCBs] Re: sensitized boards
2007-03-02 by Sebastien Bailard
... Also, copper in particular is a very good reflector of the infrared light CO2 lasers use. CO2 laser cutting/engraving is easier with other metals. This is
Re: Resist other than ink
2007-03-02 by docstein99
... If I m not mistaken an HP printer uses thermal heads to HEAT the ink causing bubble popping, and epson - I believe uses sound (or piezo) heads. Hopefully
Re: [Homebrew_PCBs] Re: sensitized boards
2007-03-02 by William Nelson
Another problem is that when the copper melts it becomes highly reflective making it harder for the laser. Plus it reflects all over the place potentially
Resist other than ink
2007-03-02 by wnnelson0
I received this answer from the Chemistry Cluster group on Yahoo about solutions other than ink to use for resist in out inkjet. Don t know if it will help
Re: sensitized boards
2007-03-02 by docstein99
... I bought this one from ebay (auction # 290087913046): http://cgi.ebay.com/HIGH-POWER-BURNING-LASER-DIODE-IR-OPTICS-MODULE-
Re: [Homebrew_PCBs] Re: sensitized boards
2007-03-02 by otc_friend
Can you provide a price info for the ir laser diode? I m thinking of converting my Epson printer to just a plotter. regards - Henry www.ehydra.dyndns.info ...
Re: cheap UV light sources?
2007-03-02 by garydeal
... I m sorry, I meant that I etch brass sheet, not pcb s (mostly, anyway). The brass sheet is for parts for miniaturists and the whole etching thing was more
Re: sensitized boards
2007-03-02 by docstein99
... I have used a cheap infra-red, I can use to melt most any thin black material, lines so thin you need a 10x lens to see them. With a cnc, I can rasotize
Re: [Homebrew_PCBs] Re: sensitized boards
2007-03-02 by Cristian
Any practical idea/results/cost here? Cristian