Re: [Homebrew_PCBs] HPGL
2004-04-04 by Stefan Trethan
you can find a command on the hp homepage i think which you enter in the dos console (using the copy command), it draws a line i think. with that you can test
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Re: [Homebrew_PCBs] HPGL
2004-04-04 by Jeremy Taylor
I have to use the copy com1 comand in a dos prompt to send my files to the plotter, XP ha no hpgl driver, nor does HP make one. There is a decent driver
HPGL
2004-04-04 by jackafaz
Hi, I use Eagle to generate my PCB artwork. I would like to try plotting the output. I have an old HP7475. The documents for Eagle say it will output HPGL but
Re: [Homebrew_PCBs] Re: 500 buck CNC drill update
2004-04-04 by Stefan Trethan
or use a switchmode supply and have the popular voltage doubler every pc has... On Sun, 04 Apr 2004 23:56:17 +1000, Russell Shaw
Re: [Homebrew_PCBs] Re: 500 buck CNC drill update
2004-04-04 by Russell Shaw
... Use a transformer with 120V center-tap and have a switch for series or parallelling of the primaries.
Re: 500 buck CNC drill update
2004-04-04 by ballendo
Hello, The kits sent to countries with 240V,50Hz mains would be set up for that voltage and frequency. It s only a transformer change, after all... Ballendo
Re: PCB manufacturers
2004-04-04 by ballendo
Hello, Anybody have any experience with pcbPRO.com ? Ballendo ... I ve had problems with both shipping and pricing with them. Last time I had them make me a
Re: [Homebrew_PCBs] Re: 500 buck CNC drill update
2004-04-04 by Bill Maxwell
Hi Ballendo I m interested too but is the power supply an area in which a slightly lesser kit might be considered. Australian AC mains supply is 240 VAC. 50 Hz
Re: [Homebrew_PCBs] PCB manufacturers
2004-04-04 by Paul Davis
While I ve found Advanced Circuits boards to be of good quality I ve had problems with both shipping and pricing with them. Last time I had them make me a few
Re: [Homebrew_PCBs] PCB manufacturers
2004-04-04 by Leon Heller
... From: Jon Elson To: Sent: Sunday, April 04, 2004 3:17 AM Subject: [Homebrew_PCBs] PCB
Re: etching
2004-04-04 by AL
... figure ... Sorry for not clearifing what im looking for. I am talking about machines that take image from a computer and tranfers it on to the PCBs,kinda
PCB manufacturers
2004-04-04 by Jon Elson
OK, after making a successful prototype, does anyone have any comments on good or bad experiences with commercial PCB fabricators that are good for small
Re: 50 mil pitch ribbon cable directly to PCB?
2004-04-03 by Phil
interesting idea. I ve got one here. It looks like they will only work for 100 mil pitch but it does have the right height and its mechanically fairly solid.
Re: 50 mil pitch ribbon cable directly to PCB?
2004-04-03 by Richard Mustakos
Phil I don t know if you are familiar with SurfBoards ( http://www.capitaladvanced.com ), a SMT to SIP converter board series, but they have pads on the edge
Re: [Homebrew_PCBs] Plating Holes
2004-04-03 by Adam Seychell
Hi Jeremy, The FLASH COPPER product seems like a general purpose alkaline type copper plating solution, but with the added benefit of not containing cyanide.
Re: [Homebrew_PCBs] etching
2004-04-03 by Adam Seychell
... Please define what a auto etcher is ?
PCB Shear (was) Re: Dremel bits for cutting panelized PCB?
2004-04-03 by Robert George
I ran across a nice little 4 PCB shear a couple of months back, but unfortunately I can t find the link. Does anyone know of a small, inexpensive PCB shear?
Re: 50 mil pitch ribbon cable directly to PCB?
2004-04-03 by Phil
sounds reasonable. I m looking right now at an LCD display that has the wires inserted through the holes. This makes a good mechanical connection. I can
need some help on plating
2004-04-03 by Dave Mucha
Hi all, I need a board with gouges cut into it. Little recesses for a part to sit into. I can cut the gouges, but then I need to get them plated, just like a
Re: Dremel bits for cutting panelized PCB?
2004-04-03 by Dave Mucha
... Both. I like the bakelite boards because I can peal the large areas, but am now down to FR-4. (anyone know a good source for bakelite at low prices?) The
Re: Dremel bits for cutting panelized PCB?
2004-04-03 by ballendo
Dave, This is for the bakelite (white) or phenolic(light to medium brown, as sold by radio shack) boards, correct? Because the epoxy based boards will make
Re: 50 mil pitch ribbon cable directly to PCB?
2004-04-03 by Dave Mucha
... was ... so ... What ... It sounds like you addressed the problem. Drill holes, offset from one another, diameter to all the wire to pass. Insert the wire
Re: Dremel bits for cutting panelized PCB?
2004-04-03 by Dave Mucha
... I use a cutter that looks like a milling cutter. It cuts so clean that the edges of the boards I cut yestarday are identicle to the factory edge. I need
Re: [Homebrew_PCBs] 50 mil pitch ribbon cable directly to PCB?
2004-04-03 by Stefan Trethan
I have soldered the wires directly to strips of copper. (like a edge connector) Holes would be tiny, or offset, and the wire is not solid and hard to insert.
Re: 50 mil pitch ribbon cable directly to PCB?
2004-04-03 by Phil
that is an interesting way to do it. certainly could work for a prototype. Not sure it would do for a small production run though. thanks. ... the ...
etching
2004-04-03 by AL
I know there are many ways to make PCB s, but I am trying to figure out how to make a auto etcher. The building part is easy. The problem is where do you get
Re: [Homebrew_PCBs] Plating Holes (was: plated tin as the etch resist)
2004-04-03 by Jeremy Taylor
I think it really has to do with the balancing chemistries. , or the organics. The Flash I m using has no cyanide, I was under the impression that the
Re: [Homebrew_PCBs] Plating Holes (was: plated tin as the etch resist)
2004-04-03 by Hugh Prescott
Another group (Jewlers) doing toner transfer http://www.ganoksin.com/borisat/nenam/photocopy_transfer_etch.htm Hugh [Non-text portions of this message have
Re: 50 mil pitch ribbon cable directly to PCB?
2004-04-03 by Mark Higgins
You could try simple pads along the edge of the board and solder the stripped wires directly to the pads. This will give you the clearance and is easier than
Re: [Homebrew_PCBs] Plating Holes (was: plated tin as the etch resist)
2004-04-02 by Adam Seychell
Ok, thanks for your response. I thought you might have had made a grand discovery in getting through holes to place reliably over carbon coated holes. As I
Re: [Homebrew_PCBs] Dremel bits for cutting panelized PCB?
2004-04-02 by David P Harris
Dremel = ++dust I have used a paper shear, but its a bit of a strain. A metal shear is just the ticket. You might be able to use one at a local sheetmetal
Re: [Homebrew_PCBs] Re: SMT info?
2004-04-02 by Paul Davis
I ve done 0603 s .5mm pitch TQFP s, various leadless packages and even the tiny 1mmx0.6mm SSSMini2P that Panasonic makes diodes in. Surface mount is not hard
50 mil pitch ribbon cable directly to PCB?
2004-04-02 by Phil
I ve seen this done and was wondering if anyone has some words of wisdom as to how to do it. Basically, I want to attach a ribbon cable directly to a PCB.
Re: Dremel bits for cutting panelized PCB?
2004-04-02 by Phil
... slightly.... Agreed, I use a floor mounted 30 sheet metal sheer. flat bed, straight cut. definitely overkill but I have it for other things as well.
Re: [Homebrew_PCBs] Re: Dremel bits for cutting panelized PCB?
2004-04-02 by Stefan Trethan
carbide blade in tablesaw -- great. edges like polished, and straight.. or a shear, but the handheld sheetmetal shear bends the board slightly.... ST
Re: Dremel bits for cutting panelized PCB?
2004-04-02 by Phil
I use a shear. Very clean and fast. It makes a complete mess of phenolic but FR4 is very clean. I dont use phenolic except in emergencies so it doesn t
Re: Dremel bits for cutting panelized PCB?
2004-04-02 by ballendo
Hello, I d suggest the routing bit. The best type for pcb material looks like it has elongated diamond shaped facets as cutting edges... Ballendo
Re: [Homebrew_PCBs] Dremel bits for cutting panelized PCB?
2004-04-02 by Leon Heller
... From: ggindele To: Sent: Friday, April 02, 2004 7:12 PM Subject: [Homebrew_PCBs] Dremel bits for
Dremel bits for cutting panelized PCB?
2004-04-02 by ggindele
I wonder if anyone can recommend a dremel bit for cutting panelized PCB. What s better, a routing bit or the cutting wheel?
Re: plated tin as the etch resist
2004-04-02 by ballendo
Message for Adam and/or Tom, But open to anyone (Those two just have made it known they ve done some higher volume processing) What would you suggest for a
Re: [Homebrew_PCBs] maxim samples
2004-04-02 by Derryck Croker
... That s been my experience as well, but a second request some time later got me some DIPs :-) -- Cheers, Derryck
Re: [Homebrew_PCBs] Re: panelizing for dummies?
2004-04-02 by Cristian
... May I have that modification? Cristian [Non-text portions of this message have been removed]
Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-02 by Jeremy Taylor
Hard to say - and subjective at best. but IMO yes. We can discuss this more tomorrow, I ve been trying to take some pics , but man is it difficult to even get
Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-02 by Adam Seychell
... Does that mean the alkaline plate was more capable of completely covering the holes walls with copper than compared to acid copper plating ? Which bath was
Re: [Homebrew_PCBs] Re: plated tin as the etch resist
2004-04-02 by Jeremy Taylor
Thanks for the tip - I ll mix some up tomorrow morning, and err... figure out a place to put the new pre dip . JT http://www.soundclick.com/jtsound
Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-02 by Jeremy Taylor
My last post must been sent just prior to yours. I actually ended up completely closing up some holes with the acid copper. It definitely a more aggressive
Re: plated tin as the etch resist
2004-04-02 by twb8899
... purchased as) ... try it ... quick rub ... Jeremy, If you dip the tin-lead plated panels in straight peroxide (30% or stronger) for 15 or 20 seconds you
Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-02 by Jeremy Taylor
Actually I was wrong about the tin bath. Its not mixed with sulfuric, It s just water. It was too early for me. . The Bright tin uses sulfuric, and the etch
Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-02 by Adam Seychell
... Ok, that clears up the confusion. If you say it contains sulfuric but can also plate tin/lead so then the it must have some other electrolytes for
Re: [Homebrew_PCBs] plated tin as the etch resist
2004-04-02 by Jeremy Taylor
My chemistry is for Tin/Lead (it all about the organics, which I called brightener thinking of Bright tin which my kit was originally purchased as) This is