Re: [Homebrew_PCBs] Mechanical Etching Bits
2009-06-29 by Simao Cardoso
... Hi, you have been already answered but since you said home-made CNC router you may find both Bungard and LPKF (or megauk) not easy and expensive to deal
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Re: Texet LMA44-V Laminator
2009-06-29 by fenris67
... Today I have had another go using my modded laminator. This time, with the temp at just over polyester, I did 6 runs to heat the PCB and 8 to transfer the
Re: [Homebrew_PCBs] Mechanical Etching Bits
2009-06-29 by Cristian
... www.bungard.de, very good and serious supplier. Cristian [Non-text portions of this message have been removed]
Re: [Homebrew_PCBs] Mechanical Etching Bits
2009-06-29 by leon Heller
... From: Marko Pavlin To: Sent: Monday, June 29, 2009 1:33 PM Subject: [Homebrew_PCBs] Mechanical Etching Bits
Mechanical Etching Bits
2009-06-29 by Marko Pavlin
Hi! I am looking for european supplier for mechanical etching bits for using with home-made CNC router. Any suggestions? Thanks! Marko
Re: [Homebrew_PCBs] Re: Muriatic Acid and Hydrogen Peroxide Fumes
2009-06-29 by Stefan Trethan
Reasonable care must be taken fore sure. The main things are to keep the concentrated HCl in a sealed bottle, and you should run your CuCl tank with a
Re: [Homebrew_PCBs] Re: Muriatic Acid and Hydrogen Peroxide Fumes
2009-06-29 by Michel Baguet
sorry, didn t see someone already answered to FeCl3 toxicity.... ... From: leon Heller Subject: Re: [Homebrew_PCBs] Re: Muriatic Acid
Re: [Homebrew_PCBs] Re: Muriatic Acid and Hydrogen Peroxide Fumes
2009-06-29 by Michel Baguet
FeCL3 is not poisonous, it is used in water purification station as a flocculator agent. Mike. ... From: Charles Subject:
Re: [Homebrew_PCBs] Re: Muriatic Acid and Hydrogen Peroxide Fumes
2009-06-28 by Simao Cardoso
... Repeating what others said, the pollutant is copper, and FeCl3 can hold a big quantity of it. Since it has no regeneration people will drain it with copper
Re: âDragonâs Bloodâ res in reduces undercut?
2009-06-28 by a3v03v0
Maybe I will give it a try when the SP is gone. I like the SP because I can etch indoors without a hood. ... (muriatic acid) + hydrogen peroxide to etch as
Re: [Homebrew_PCBs] Re: Muriatic Acid and Hydrogen Peroxide Fumes
2009-06-28 by Stefan Trethan
FeCl is not really a problem for the environment. In fact it is sometimes used for wastewater treatment. Now dissolved copper is another issue. ST
Re: [Homebrew_PCBs] Re: Muriatic Acid and Hydrogen Peroxide Fumes
2009-06-28 by leon Heller
... From: Charles To: Sent: Sunday, June 28, 2009 6:00 PM Subject: [Homebrew_PCBs] Re: Muriatic Acid
Re: Help Getting Started
2009-06-28 by Charles
My current setup is an OLD broken down laser printer off ebay ( 0.99 + $20 shipping off ebay), a big batch of single sided cost like 10 or 20 bucks but im
Re: Muriatic Acid and Hydrogen Peroxide Fumes
2009-06-28 by Charles
Ive been EXTREMELY careful of fumes using this method and am going to CuCL exclusively. FCL is just too poisonous to the environment (imho it should be
Re: âDragonâs Bloodâ res in reduces undercut?
2009-06-28 by Charles
... You should really try copper chloride. http://members.optusnet.com.au/eseychell/PCB/etching_CuCl/index.html Im currently making some. An extra upside is
Re: [Homebrew_PCBs] Re: Near-perfect 6/6 etch
2009-06-28 by DJ Delorie
... http://webtronics.stores.yahoo.net/lowcosettans.html Check the solder joints on the heater, though. Mine were cold and eventually failed, I had to take
Re: [Homebrew_PCBs] Re: Near-perfect 6/6 etch
2009-06-28 by DJ Delorie
... Yes, and sharing how I got there so others can benefit. ... Thanks! I think 6/6 is my limit though. I need a 4 mil hole to etch a 6 mil gap reliably, and
Re: Near-perfect 6/6 etch
2009-06-28 by javaguy11111
Lines look good DJ. Where did you get your aquarium heater? Mine died on me. I went to a pet store and all they had were ones with a bunch of decorations on
Re: [Homebrew_PCBs] Re: DIY SolderMask
2009-06-28 by Simao Cardoso
... Old thread but I have to thank you for the link. One part only, uv cured soldermask and silkscreen (legend layer) is something i really look for one year
Re: Near-perfect 6/6 etch
2009-06-28 by sailingto
... Bragging aren t you? I just looked at the photos - and you have something to brag about - CONGRATS, good job. Maybe someday I ll move up to photo resist
Near-perfect 6/6 etch
2009-06-28 by DJ Delorie
Re-did one of my boards that had a section of dense 6/6 traces. Technically, 6 mil traces on 12.5 mil centers. The last attempt way over-etched and cut many
Re: No Clean Flux
2009-06-26 by rbert99@sbcglobal.net
Hi Russell, Yes based on the Flux study we changed to rosin flux for hand soldering. Please note however that rosin flux is still hygosopic and absorbs
Re: Stargate daughter PCB
2009-06-26 by javaguy11111
I misunderstood your picture. I thought you were doing the big board. I did not see the smaller board that is wired in. CPLD probably would not do much good as
Re: [Homebrew_PCBs] Re: Stargate daughter PCB
2009-06-26 by Surf Thenet
This is such a small PCB, one chip, one trans, 2 resistors... I just don t have a lot of hope for simplification. Concerns regarding testing and verification
Re: [Homebrew_PCBs] Re: Stargate daughter PCB
2009-06-26 by Surf Thenet
The email addy you sent does not work... On Wed, Jun 24, 2009 at 9:52 PM, warrenbrayshaw
Re: Texet LMA44-V Laminator
2009-06-26 by fenris67
... Hi Ken I have no temp indication. I m relying on the thermostat dial to be true :D regards Fenris
Re: Texet LMA44-V Laminator
2009-06-26 by sailingto
... Hey, I LIKE that idea - there should be an old iron lying around here somewhere - think I ve got one on the boat. I WILL take that for a control. Do you
Re: Texet LMA44-V Laminator
2009-06-26 by fenris67
... Hi all Well it seems I have hit on a solution to temperature control that works for me :D I dismantled and old clothes iron. Removed it s bi-metal
Pulsar laminator, Re: Dragon's Blood resin reduces undercut?
2009-06-26 by sailingto
... Tell us about this temporary tattoo idea - is there a way to make those I don t know about? I ve got a couple of granddaughters who would LOVE those
Re: [Homebrew_PCBs] Heating etchant: Re: “D ragon’s Blood” resin reduces undercut?
2009-06-26 by Daniel Johnson
I etch copper up. [Non-text portions of this message have been removed]
Re: [Homebrew_PCBs] Heating etchant: Re: “D ragon’s Blood” resin reduces undercut?
2009-06-26 by Daniel Johnson
Sodium Persulphate does not etch unless it is heated. I have used the sponge with Ferric Chloride but most of the times I etch indoors without a hood it was
Heating etchant: Re: âDragon âs Bloodâ resin reduces un dercut?
2009-06-26 by jc805sb
... How are you heating the etchant? Have you tried sponging the surface or not bothered with trying it? Also, do you keep your boards etching copper up, or
Pulsar laminator, Re: Dragon's Blood resin reduces undercut?
2009-06-26 by jc805sb
... I bought the pulsar laminator from Digikey. The description on his site said there were different models under the same name. For $45 or whatever, I went
Re: No Clean Flux
2009-06-26 by Brian
To add to this we just made 200 RF boards that required rework, for some reason the QFN s wernt reflowing right. The solder paste templets were made from the
Re: [Homebrew_PCBs] Re: Texet LMA44-V Laminator
2009-06-26 by DJ Delorie
... I don t know if I do enough TT with the new heat control to say normally but the old control was for 320 F and was a bit too cold. 350 F seems to work
Re: Texet LMA44-V Laminator
2009-06-26 by sailingto
DJ, how hot do you normally do toner transfer? I just got a new HP P1006 printer today - any idea what temperature it should take for toner transfer? Comments
Re: Texet LMA44-V Laminator
2009-06-25 by fenris67
... Hi there I m pretty sure of the connections so in theory just swapping out the thermal switch will be sufficient. I will have a look and see if there is a
Re: [Homebrew_PCBs] Texet LMA44-V Laminator
2009-06-25 by DJ Delorie
... Close enough. I run mine a little hotter. ... Most likely, but you d have to trace out all the connections to be sure.
Texet LMA44-V Laminator
2009-06-25 by fenris67
Hi all I got this laminator for £10 today. I ve opened it up and the control of the temp is by 2 thermal switches. These are in parallel so I don t quite get
Re: DIY SolderMask
2009-06-25 by tsescrl
Hello, It exist somme type off solder mask ink and some type off ink to print directly on the copper before ectching. For this special ink you can go to
Re: [Homebrew_PCBs] Re: DIY SolderMask
2009-06-25 by Simao Cardoso
... Every LPI soldermask i know about uses resin and hardener. There really is a type of epoxy 1 part only cured in UV or very hot temperatures. The prices are
Re: Dragon's Blood resin reduces undercut?
2009-06-25 by sailingto
... I have been wanting to try the Pulsar paper, especially the green foil step, maybe I ll just have to place an order for the green foil - $1.50/sheet of the
Re: [Homebrew_PCBs] Re: “Dragon’s Blood ” resin reduces undercut?
2009-06-25 by Daniel Johnson
I switched from ferric chloride to sodium persulphate (MG Chemicals). It is a much easier to handle are requires somewhat less care. I often etch single
Re: Stargate daughter PCB
2009-06-25 by warrenbrayshaw
I ve emailed the OP as I have crafted the trace pattern he requires using EagleCAD and will send him a pdf off-line. The circuit was available at
Re: Dragon's Blood resin reduces undercut?
2009-06-25 by jc805sb
... For the board in those pictures, it is made with a Laserjet 3330 to xerox business paper, then toner transfer with iron, then soak paper in water to
Re: Dragon's Blood resin reduces undercut?
2009-06-25 by jc805sb
... Yes thanks - I got all the Pulsar stuff recently and have finished etching 2 boards using the starch paper and the Green laminating paper. Also I got the
Re: [Homebrew_PCBs] DIY SolderMask
2009-06-25 by George
Here is a company I found that markets the stuff, not sure of the price for a small batch.
Re: Stargate daughter PCB
2009-06-25 by javaguy11111
... Assuming you have full schematics and everything is simple logic(ie no analog) , I wonder if a CPLD might work better. You may be able fit all the logic
Re: Stargate daughter PCB
2009-06-25 by Steve
Before I started using the free version of DipTrace, I made a few boards in CorelDraw. I started copying this board by just loading it up as a background image
Re: [Homebrew_PCBs] Re: DIY SolderMask
2009-06-24 by Daniel Johnson
http://ultradome.com/supplies.html They sell a UV epoxy but it looks expensive to me. About 8 oz for $30 and 16 oz for $50. The question I have is what