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Page 94 of 707 · 35337 messages matched
2013-01-01 by "Zoran A. Šćepanović"
... Hi John, don t jump to the conclusions too early. Soldermask is as easy as 1-2-3-4: Laminate-Expose-Develop-Cure. I actually watched the video to the end
2013-01-01 by John Anhalt
There is obviously a lot that is not shown. How can a laminate resist cover both etched areas and the not etched areas? It s a hoax -- with a lot of thumb
2013-01-01 by tda7000
There s someone selling some here: http://www.ebay.com/itm/Solder-Mask-Resist-Green-Dynamask-5-sheets-30-x-20-CM-Incl-50-gram-developer-/271109281266 You can
2013-01-01 by Jeff Heiss
The pdf titled Exploding Wires - Principles, Apparatus, and Experiments, says a rule of thumb for exploding a wire is 200uF at 2000v. Meaning charge a 200uF
2013-01-01 by "Zoran A. Šćepanović"
... Wow, could not watch the video due to the awlfull chewing sound. And as for the transparency at the hles, it is obvious that there is no film over the
2013-01-01 by alan00463
This Youtube video is labeled professional-looking stopping agent (solder resist layer) http://www.youtube.com/watch?v=VNYIVZgbi9M I just watched Michael s
2013-01-01 by waynegramlich
Agreed. I use a $20 toaster oven. It is *never* used to heat food. ... I use a USB thermocouple to plot the temperature in real-time. The one I use is the
2013-01-01 by smilingcat90254
I use $20.00 toaster oven. Solder paste for some of my surface mount. TQFPs and other fine pitch devices. Dab a bit of solder paste on a reference pad and
2013-01-01 by KeepIt SimpleStupid
There are two tools needed here, one is a track cutter for strip board http://uk.farnell.com/pcb-track and the other is a pad cutter
2013-01-01 by Harvey White
... Actually, there were several methods of assembly. Wirewrap used #30 (or #26) Kynar wire, various sized posts, unwrapping tools, wrapping tools, and so on.
2013-01-01 by Harvey White
... That would be it. The number is even familiar. Harvey
2013-01-01 by Harvey White
... I had one somewhere, I think that OK electronics made it. It cut an island about 3/16 of an inch in diameter, with about 0.050 or so worth of isolation.
2013-01-01 by Harvey White
... If it s a true inductive heater, then it s got KW of RF running around, causing eddy currents in iron or steel sufficient to make the metal get to 300 or
2013-01-01 by Bob AD5VJ
Preheat and turn off the heaters Sent from my iPhone ... [Non-text portions of this message have been removed]
2012-12-31 by Andrew Hakman
Actually, the one I saw was the small hole saw version - there was an island of copper left around the hole, and then a cut out ring around that. I guess
2012-12-31 by Derward Myrick
This will cut an island on a big PCB. http://www.harborfreight.com/catalogsearch/result?q=spot+weld+cutter Derward Myrick KD5WWI ... From:
2012-12-31 by MIKE DURKIN
I would think so ... how do emp damage electronics? To: homebrew_PCBs@yahoogroups.com From: mlerman@ix.netcom.com Date: Mon, 31 Dec 2012 13:54:41 -0500
2012-12-31 by Pict
... I think you are thinking of Veroboard and a tool like this to break the tracksŠ http://www.ebay.com/itm/300816579317 A small drill bit works almost as
2012-12-31 by Norm
... Try this one: http://www.vectorelect.com/Catpdf/New%20Page%2075-78.pdf Norm W6NIM
2012-12-31 by Andrew Hakman
... I ve seen boards built with this. Usually the pre-drilled proto board, but with copper tracks that run from one edge to the other, and you separate the
2012-12-31 by Mark Lerman
Hi all, Anyone have any thoughts about using this to solder pcbs - it would seem easy to hack the controls of the cooktop to create soldering profiles. But,
2012-12-31 by Rick Sparber
Thanks Dave ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of David Sent: Saturday, December 29, 2012 8:21 AM To:
2012-12-31 by Mitch Davis
On Sat, Dec 29, 2012 at 3:31 PM, pauldebono@rocketmail.com ... Someone just heartily recommended this device to me:
2012-12-31 by D. Daniel McGlothin
Paul, ... I think you said something earlier about Manhatten-style construction. Have you seen these Manhatten-style guidelines, including the one called
2012-12-31 by KeepIt SimpleStupid
Would a wire brush Dremel attachment work? http://www.amazon.com/Dremel-443-Carbon-Steel-Brush/dp/B00004UDHK/ref=pd_bxgy_hi_img_z For a large area, try a
2012-12-31 by r.d. terramir
sounds like your better off etching your own. terramir On Sun, Dec 30, 2012 at 12:16 PM, pauldebono@rocketmail.com
2012-12-30 by Rick Sparber
I often try to find new ways to do things. Maybe 9 out of 10 times my new way is not better. But for that 1 in 10, the art is advanced. So for me it is worth
2012-12-30 by Harvey White
... There used to be a small tool that was used to create an island around a drill hole. it was effectively a micro sized hole saw. The technique was to
2012-12-30 by Rick Sparber
Interesting site. Thanks, Rick ... From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of herpsrwe Sent: Sunday, December 30,
2012-12-30 by kc8pcj
I have used a dremel tool with a round headed bit. Not the greatest but it did work. From: pauldebono@rocketmail.com Sent: Sunday, December 30, 2012 4:56 AM
2012-12-30 by kc8pcj
If you open the unit up. You may be able to use a thin washer to raise one of the rollers where it is mounted. From: Spencer W Sent: Sunday, December 30, 2012
2012-12-30 by David
Have you tried Target3001? or Design Spark? both free and both are very easy to master, Design Spark has no limitations, and both have pretty comprehensive
2012-12-30 by pauldebono@rocketmail.com
What I am after, is an innovative way to build a circuit, without much complications ,drilling, designing etc. Probably my best choice is a ready made copper
2012-12-30 by Mitch Davis
... Indeed. But some people are like that. ... Nothing at all (but he didn t ask about them, he asked about hand or machine tools for scratching the surface
2012-12-30 by AlienRelics
This all sounds more and more complex. What is wrong with toner transfer, direct inkjet resist, or scratch-and-etch? Or isolation milling in a CNC mill? Steve
2012-12-30 by Rick Sparber
Have you considered wax based rub on features? Then etch with your favorite acid. Rick ... From: Homebrew_PCBs@yahoogroups.com
2012-12-30 by Mitch Davis
On Sun, Dec 30, 2012 at 5:56 PM, pauldebono@rocketmail.com ... Hmm, different. Let me think outside the box... Some kind of punch? Or chisel? Something that
2012-12-30 by herpsrwe
You can find drill bits here, as well as many other vintage electronic parts. The bits are about half way down the page...
2012-12-30 by pauldebono@rocketmail.com
John, What I am actually looking for is a hand or power tool to scratch the surface of a copper clad board. But not a core drill, something different !
2012-12-30 by Spencer W
I know with my laminator, if its a thick pcb, when its running through I have to push the board up the end otherwise it will get caught Sent from my iPhone
2012-12-30 by Mark Schoonover
When the laminator heats up the rollers expand decreasing the space between them. Try running a bare board through first before the one you want to transfer.
2012-12-30 by Mitch Davis
... If you can make the gap a little larger, maybe feed through the PCB together with a sheet of something springy which can absorb the difference in gap?
2012-12-30 by matrice197
I am converting a laminator and I have the temp adjusted, as well as the height of the roller module (so the PCB can clear the plastic at the entrance and
2012-12-30 by John
Well, it is more ugly than Ugly Sttle, but glue the components to whatever you want and wire them up with solder thru #30 wire. It works! de John W8CCW
2012-12-29 by r.d. terramir
isolation milling is one of my goals in the future I gotta build a little mill though for this. just finishing my second reprap, so I know how to build
2012-12-29 by Mitch Davis
... Because of course, cute kittens are somehow dangerous. Anyway, after all that I looked at my phone today, and it seems that I unintentionally took a rather
2012-12-29 by Mitch Davis
... Lest anyone decide on the basis of this to give up sliced bread and try KiCad, I should point out that KiCad is far from a polished program, and has
2012-12-29 by Harvey White
... IIRC, the Chinese Government has blocked subversive sites such as Youtube.... Harvey
2012-12-29 by Harvey White
... CNC router with a rotating tool... (mechanical etching). Harvey
2012-12-29 by Andrew
... +1!!