Re: Software for PCB.
2010-12-31 by tda7000
... I had a look at Design Spark and there seems to be no way to reactivate the software if you were to reinstall Windows for example. Personally I use KiCAD
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Re: [Homebrew_PCBs] Software for PCB.
2010-12-31 by Leon Heller
... Have a look at Design Spark from RS Components. Leon -- Leon Heller G1HSM
Re: Software for PCB.
2010-12-31 by rocko
You have a couple of choices: DesignSpark, Kicad and Diptrace, though I think Diptrace is like Eagle, it has certain limitations. Kicad and DesignSpark have no
Re: [Homebrew_PCBs] How to farm-out small-lot circuit cards?
2010-12-31 by Stefan Trethan
You need to be a little clearer about what you need. Do you have a working circuit already, or are you looking for someone to design it? Do you have a layout
Re: [Homebrew_PCBs] Software for PCB.
2010-12-31 by Stefan Trethan
There is no best software, full stop. It depends on your individual situation. I guess you are on a limited budget for non commercial use, so I would suggest
RE: [Homebrew_PCBs] Re: Where do you get small amounts of solder paste or fine gauge solder wire?
2010-12-31 by Boman33
I second that about long solder paste life for hand soldering. For the SMT pick and place machine with very small parts we are very careful about the shelf
Re: Where do you get small amounts of solder paste or fine gauge solder wire?
2010-12-31 by dl5012
Hi Jan, I don t have any recommendations for purchasing solder paste, but have some experience with so-called expired paste. I have 2 600g tubes of Kester
Software for PCB.
2010-12-31 by John
What is the best software to design pcb. It is not for comercial use. I m currently using Eagle but would like to be make boards lager than 80x100mm.
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-31 by mlerman@ix.netcom.com
Two sided alignment has been solved by the people who do cnc routing of boards. They use aligmnet pins (or optical markings) on the Y axis and software to do
Re: Alternate Masking Materials (CO2 Laser)
2010-12-31 by hotsnausage
We considered doing this too. The difficult part is getting even coverage of toner dust on the board so that you get uniform results. I d be concerned that
Re: Alternate Masking Materials (CO2 Laser)
2010-12-31 by hotsnausage
Part of the problem is that whatever material you put on to act as a resist has to maintain your resolution when it s burned. Most sheet materials probably
Re: Alternate Masking Materials (CO2 Laser)
2010-12-31 by hotsnausage
I don t know that much (nee, anything) about the laser. It s a Epilog Helix, which is something in the 50mW range. The laser is focusable, but I was told
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by KeepIt SimpleStupid
Spin coating works well. I used a commercial spin coater for small boards.
How to farm-out small-lot circuit cards?
2010-12-30 by Don@groupKOS.com
Hi techies, I m working on a theory and an electronic design to test it --and it s way out there and not relevant here. I am finding the details to properly
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Henry Liu
I have used a CO2 laser with Thermark with ok results. Here is a picture on a stainless steel knife but copper clad was the same thing (no pics):
Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Kim
I think considering the ease of use and the mess factor of using the powder paint or toner powder, it will dissuade one going that path. As far as using the
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Larry Battraw
... I might make a suggestion here. I was looking around at higher-powered semiconductor lasers (deep blue/violet) and they actually are making them in
RE: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Chiphead
GrayDeal; Thank you for helping to rephrase the question. In addition to being easier to apply than paint, there are some comments from those doing it that you
RE: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Chiphead
On Behalf Of kabowers@NorthState.net Another thought: Is the laser from a laser printer strong enough to melt toner in an application like this? Unfortunately,
Re: drill press for PCB
2010-12-30 by sailingto
Thanks for the links and info - The Paxsion has a good rep, but darn expensive! and really looks a LOT like the Goldmine press. For better or worse, I ordered
Re: [Homebrew_PCBs] Re: drill press for PCB
2010-12-30 by Erik Knise
... That s just the drill stand. This is their drill press http://www.proxxontools.com/store/pc/viewPrd.asp?idproduct=61
Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by DmitriA
... Mark, this may not be a direct answer to your question but just to illustrate how much power is available from a DVD burner s laser diode (spoiler: not
Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Andrew
... I will be interested to hear some expert opinions on this. I suspect there will be two problems: 1) Getting the toner to stay on the board in a suitably
Re: drill press for PCB
2010-12-30 by Jeff
My suggestion would be for the Proxxon but if you decided to go with the gemstone, ebay has it for $90 (including shipping).
Re: drill press for PCB
2010-12-30 by Jeff
Check out the Proxxon drill press. http://www.proxxontools.com/store/pc/viewPrd.asp?idcategory=33&idproduct=32
Re: [Homebrew_PCBs] drill press for PCB
2010-12-30 by Andrew Villeneuve
I ve had very good results using a Dremel 220 drill press for PCBs. I also have one of those mini chuck adapters so I can use normal drill bits. It works
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by kabowers@NorthState.net
Another thought: Is the laser from a laser printer strong enough to melt toner in an application like this? To achieve 600+ DPI they have to be rather tightly
Re: [Homebrew_PCBs] drill press for PCB
2010-12-30 by H. Carl Ott
... Well, this is the Co / Drill. http://www.lopacki.com/other/ ... Don t own either, but pics / specs sure look very similar. carl ... [Non-text portions of
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Andrew Villeneuve
This is a brilliant idea - it also solves the problem of vaporized resist redepositing on the board. Has anyone tried anything like this? -Andrew ... [Non-text
Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by garydeal
I ran an epilog 100 watt machine in the late 90 s, basically had it dropped in my lap at my job. During initial testing I even engraved 1/8 lettering into a
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Donald H Locker
How about an isolation process, but etch the unwanted copper away instead of mechanically milling it? The laser would only need to remove sufficient resist to
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by kabowers@NorthState.net
... Could you maybe do an addictive process? I wonder what would happen if you spread a film of loose toner over the board and then used the laser to melt it
RE: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-30 by Chiphead
If I were to try and go this route, I d suggest going with a BluRay laser if you could, or at a minimum a drive that supports LightScribe. (more power) John
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-29 by Andrew Villeneuve
I ve heard that the diode lasers in consumer DVD-R drives can pop balloons...I m not an expert, but it seems feasible that it could evaporate a thin layer of
drill press for PCB
2010-12-29 by sailingto
Hello all, a few months ago there was a thread about a small diamond blade saw from a company specializing in gemstone cutting/polishing. This company also
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-29 by Mark Lerman
I don t know a whole lot about lasers, so forgive my ignorance. Is there another type of laser than CO2 that will work for this purpose? These CO2 lasers seem
Re: [Homebrew_PCBs] Re: Alternate Masking Materials (CO2 Laser)
2010-12-29 by Mark Lerman
Very interesting. Assuming your limiting factor is the beam width, can you focus the laser to a smaller width? On ebay I see CO2 lasers for engraving at $1600
Re: Alternate Masking Materials (CO2 Laser)
2010-12-29 by hotsnausage
We ve been using the paint method to do boards for a few months now, and it s been working pretty well. If you need top-notch detail, then you need to go with
Re: Chemical VIAs
2010-12-29 by psykhon@yahoo.com
@Simao: Could you please post the links regarding homebrew black hole formulas? I haven t found it using the search engine here or googling. Regards
RE: [Homebrew_PCBs] Alternate Masking Materials (CO2 Laser)
2010-12-29 by Chiphead
Thanks Andrew and Matt, I ve seen the paint process, and was hoping to find an alternate material. Nothing against paint, it s cheap and easy, but can be a tad
Re: [Homebrew_PCBs] Chemical VIAs
2010-12-28 by Simon Gornall
... Yes, I checked :) The ones I ordered were http://www.futurlec.com/Relays/SSRDC50V80A.shtml - these are cheap ($28 each) and can switch on/off within
Re: [Homebrew_PCBs] Alternate Masking Materials (CO2 Laser)
2010-12-28 by Andrew Villeneuve
Like Matthew, I don t have any direct experience, but there are documented tutorials online of this working very well...I think the one I watched even
Re: [Homebrew_PCBs] Alternate Masking Materials (CO2 Laser)
2010-12-28 by Matthew Andrews
... I don t have any particular experience, but have seen a few instructables on this, and similar posts online, a quick google search should turn up some
Re: [Homebrew_PCBs] Chemical VIAs
2010-12-28 by Simao Cardoso
... Hi, Which SSR s are you using? Can they do 0.5ms pulses? Or operate at 1V or less? The turn on time and the minimum voltage to operate seems out off
Re: [Homebrew_PCBs] Re: Where do you get small amounts of solder paste or fine gauge solder wire?
2010-12-25 by Charles Patton
I ve had good luck in the things I get from DealExtreme. They re in Hong Kong, sell Chinese products, and ship out of China. The Lodestar solder paste I ve
Re: [Homebrew_PCBs] Where do you get small amounts of solder paste or fine gauge solder wire?
2010-12-25 by Steve
I have bought it from http://kd5ssj.com/solderpaste. My experience has been that it keeps for at least a year, I store in in the refrigerator. Let it warm to
Re: Where do you get small amounts of solder paste or fine gauge solder wire?
2010-12-25 by drsage2007
You d have to define tiny. A small 15cc 5 gram Syringe is available from Digikey. It has a shelf life of 6 months. Longer of kept in the fridge. (probably
Re: Plated through holes - sort of
2010-12-25 by drsage2007
Ok, curiosity got the better of me and I had to try it. You were correct. The capiliary action is stronger from the solder on either side of the board and the
Where do you get small amounts of solder paste or fine gauge solder wire?
2010-12-25 by Jan Kok
Where do you get tiny amounts of solder paste? What is the shelf life? Also, does anyone know where to get small amounts of 10-mil diameter solder wire? Like,
Re: Plated through holes - sort of
2010-12-25 by davesage12@rogers.com
Well, maybe, but I don t know where the solder is going to go. With a portion of it attached to copper on both sides of the board I would assume the column in