Drilling machine idea HF drill press
2003-07-11 by Dave Mucha
... had 0.020 slop in the quill. Then again, they were not brand new, but had been used for drilling metal etc. We had one at the airport, and a friend had
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Re: [Homebrew_PCBs] Re: Inkjet Transparencies
2003-07-11 by Russell Shaw
... Maybe it s the toner particle size. About the only other thing is the intensity and duration of heat applied to the toner.
Re: New file uploaded to Homebrew_PCBs
2003-07-11 by Steve Greenfield
This would be On Topic on Electronics_101 or Advanced_Electronics. It is Off Topic here. Steve, the moderator ...
Re: [Homebrew_PCBs] Re: New file uploaded to Homebrew_PCBs
2003-07-11 by Zoran A. Scepanovic
Hello Steve, SG Steve, the moderator The group OWNER! -- Best Regards, Zoran mailto:zasto@yubc.net
New file uploaded to Homebrew_PCBs
2003-07-11 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File :
New file uploaded to Homebrew_PCBs
2003-07-11 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File :
Re: coating the PCB with lacquer
2003-07-11 by Mark Farnell
Actually, I sprayed my PCB AFTER I tested it by using a 9V battery set the signal input to positive and negative. The booster responded correctly and the
New file uploaded to Homebrew_PCBs
2003-07-11 by Homebrew_PCBs@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Homebrew_PCBs group. File :
Re: [Homebrew_PCBs] coating the PCB with lacquer
2003-07-11 by Stefan Trethan
i m sure it isn t the laquer. also the metaloxide paints should isolate. maybe there are some metallic look paints which conduct but.... it is not very wise
Re: [Homebrew_PCBs] coating the PCB with lacquer
2003-07-11 by JanRwl@AOL.COM
In a message dated 7/10/2003 3:29:31 AM Central Standard Time, ... If this Clearcoat really IS clear ---that is, has no aluminum paint in it---that should
Re: Drilling machine idea
2003-07-11 by c_kurz
... The problem with a camera below the print is that it will be blind after a few drills. Well maybe one could use a piece of glass to shield it and a air
Re: the naked truth about Laser Jet, warts and all !
2003-07-11 by c_kurz
... is now ... because ... A friend of mine using a LaserJetIII also suggested to send a couple of prints through the printer prior to sending the final
Re: Macro photography
2003-07-11 by c_kurz
... A medium quality 600/1200 dpi scanner with transparency option is good for film analysis/demonstration. - Carsten
Re: Inkjet Transparencies
2003-07-11 by c_kurz
... very poor. ... especially ... happens. ... with ... I think the basic idea should be to set up a website that references good working combinations. Nobody
Re: Inkjet Transparencies
2003-07-11 by c_kurz
... The problem simply is: Not every laser does the job. I bought a Brother Laser, and I have special matte transparencies that seem to work excellent on the
coating the PCB with lacquer
2003-07-10 by Mark Farnell
Hi! I am using a paper phenol PCB for my model railway booster project (which has to handle signals at about 36000 baud). I have developed, etched, drilled
Re: [Homebrew_PCBs] Drilling machine idea
2003-07-10 by Adam Seychell
... From what Tom was once explaining about the manual Excellon PCB drilling machines he suggested the video camera is the way to go for this. I priced some of
Re: SPAM: [Homebrew_PCBs] Drilling machine idea
2003-07-09 by Ron Amundson
... From: Neil To: Homebrew_PCBs@yahoogroups.com Sent: Wednesday, July 09, 2003 1:16 PM Subject: Re: SPAM: [Homebrew_PCBs] Drilling machine idea I have been
Re: SPAM: [Homebrew_PCBs] Drilling machine idea
2003-07-09 by Neil
I have been looking into creating crosshairs on my regular drill press with a pair of low-cost ($5) laser pointers, each setup to project a thin straight line.
Re: the naked truth about Laser Jet, warts and all !
2003-07-09 by wheedal99
I fixed /added a few things to the howto . The newer direct link is: http://myweb.cableone.net/wheedal/pcb.htm Let me know if there are any glaring errors or
Drilling machine idea
2003-07-09 by Leon Heller
Having seen an old manual Excellon PCB drilling machine in action recently, I got to thinking about an up-to-date version suitable for home construction. The
CNC Diamond End Mill??
2003-07-09 by Cristian
I m looking for some Diamond End Mills for my PCB CNC machine. Milling diameter 0.2 to 0.5 mm. Like 2 flutes steel end mills. Any idea where to ask? Cristian
Re: novice PCB etecher and lasers
2003-07-09 by Dave Mucha
... I m saying that the current laser wars can only (as any disagreement) be from lack of knoledge. once you KNOW AND UNDERSTAND the think, you can control
Added links in Toner Transfer
2003-07-08 by Steve
I added links to some Tshirt transfer presses, in case anyone is tired of ironing toner transfers onto PCBs. ; ) I listed a couple that have temp and pressure
Re: [Homebrew_PCBs] novice PCB etecher and lasers
2003-07-08 by Hans Wedemeyer
Dave, I posted several How to s including photo s of everyday practical results... what more do you want... How much for the T-Tech... ? Best Regards Hans W
novice PCB etecher and lasers
2003-07-08 by Dave Mucha
Hi all, I ve read some of the Laser Wars posts going on and thought you all might like a different point of view. I did my fist PCB with iron transfer from a
Re: Ooey Gooey!
2003-07-08 by ghidera2000
Ah ok, the light comes on. Copper Green... I should have made the connection. I only have about 900 litres of HCL at work, think that d be enough? (Dr. Evil
Re: [Homebrew_PCBs] Ooey Gooey!
2003-07-08 by Adam Seychell
... Considering copper compounds make very good fungicides (down to the ppm level) I think it would be a safe bet to say its not growing in there :) The green
Re: [Homebrew_PCBs] Ooey Gooey!
2003-07-08 by Russell Shaw
... The active ingredients can settle to the bottom. Add some HCl and stir it.
Ooey Gooey!
2003-07-08 by ghidera2000
Well, after babbling away about how good my el-cheapo ML-1210 laser printer makes transparancies, I made a little board (4 x4 ) with 0.008 traces on 0.020
Re: [Homebrew_PCBs] the quality of different types of PCBs
2003-07-07 by Hans Wedemeyer
good one.... ! hansw ... ADVERTISEMENT [click here] ... [Non-text portions of this message have been removed]
Re: [Homebrew_PCBs] the quality of different types of PCBs
2003-07-07 by JanRwl@AOL.COM
In a message dated 7/7/2003 3:40:39 PM Central Standard Time, ... Thank you, Hans! But I am too STOOPID to think about stuff like that! Besides, I think TX
Re: [Homebrew_PCBs] the quality of different types of PCBs
2003-07-07 by Hans Wedemeyer
Jan, You forgot one thing that s important enough to mention. Dielectric values for paper and FR4... FR4 runs about 4-5 and paper about somewhere arount
Re: [Homebrew_PCBs] the quality of different types of PCBs
2003-07-07 by JanRwl@AOL.COM
In a message dated 7/7/2003 4:05:37 AM Central Standard Time, ... Farnell: Someone in here with far more wisdom on this topic than me will probably have
Re: [Homebrew_PCBs] methods of developing double-sided PCBs without an UV exposure unit
2003-07-07 by Stefan Trethan
i always exposed the one, turned upside down, exposed other side. i made a pocket of the film with a strip of pcb at the edge. then developed/etched
Re: [Homebrew_PCBs] the quality of different types of PCBs
2003-07-07 by Stefan Trethan
hi i am from europe sp i do not know the correct names for the boards at your location. paper phenol is one of the cheapest boards. it is made of
Re: [Homebrew_PCBs] methods of developing double-sided PCBs without an UV exposure unit
2003-07-07 by adam Seychell
After the photoresist has been exposed with the pattern there is no maximum time limit before it must be developed, provided of course it is not exposed to
methods of developing double-sided PCBs without an UV exposure unit
2003-07-07 by Mark Farnell
Is it necessary to expose both sides of a photosensitive PCB simutaneously, so that I can dip the entire board into a sodium carbonate tank? Otherwise if I
the quality of different types of PCBs
2003-07-07 by Mark Farnell
Hi! I am a newbie in homebrew PCB. I know that there are many types of PCBs available, such as paper phenol and epoxy. What are their characteristics? Which
Re: [Homebrew_PCBs] UV plotting
2003-07-07 by Leon Heller
... Nichia also has a UV laser diode - 2 mW output at 375 nm. Leon -- Leon Heller, G1HSM Tel: +44 1424 423947 Email:leon_heller@hotmail.com My web page:
Re: [Homebrew_PCBs] UV plotting
2003-07-07 by Adam Seychell
A UV LED will take you weeks to UV plot a board. See if you can buy a small powerful mercury vapor HID lamp (i.e. the kind of thing that needs lots of cooling
Re: [Homebrew_PCBs] Re: UV plotting
2003-07-07 by Cristian
I m not sure about the true output. I ve just copied the Maplin s catalogue. ... I m trying to get one, but will take 2-3 weeks for it to reach Romania from
Re: UV plotting
2003-07-07 by John Myszkowski
At that power, you just need to mask the excess light. You probably won t need a lens. Even with less power, it is pretty actinic wavelength. Try and see what
Re: [Homebrew_PCBs] UV plotting
2003-07-07 by Russell Shaw
... Planning on a perpetual motion machine;)
UV plotting
2003-07-07 by Cristian
High Power UV LED with Narrow Directivity, offered by Maplin, UK (www.maplin.co.uk) order code N76AJ, price GBP49.99. DC: 3.5volts/15mA 10ms pulse: 30mA power
Re: the naked truth about Laser Jet, warts and all!
2003-07-06 by John Myszkowski
I don t know if you need some examples, but in the FIles section I have posted the results of my Laser PCB printing. Look in the Files and
Re: [Homebrew_PCBs] Re: Positive resist
2003-07-06 by Leon Heller
... From: ghidera2000 To: Sent: Sunday, July 06, 2003 4:49 AM Subject: [Homebrew_PCBs] Re: Positive
Re: [Homebrew_PCBs] Re: the naked truth about Laser Jet, warts and all !
2003-07-06 by Leon Heller
... From: wheedal99 To: Sent: Sunday, July 06, 2003 4:58 AM Subject: [Homebrew_PCBs] Re: the naked
Re: the naked truth about Laser Jet, warts and all !
2003-07-06 by wheedal99
Well, it sounds like we re talking about the same thing. 10cmx10cm is pretty typical for me as well... The board pictured on the earlier site post is
Re: Positive resist
2003-07-06 by ghidera2000
Are you really sure you want to use the spray on stuff? Here s the acute and chronic effects section of its MSDS ACUTE EFFECTS: Eye and skin contact can cause