Re: [Homebrew_PCBs] Re: Drilling circuit boards on the cheap:
2016-02-15 by Stefan Trethan
Is that a serious question? Do you really think they make the tools interchangeable? I would not go for this proxxon model, it is the worst of the lot because
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Re: Drilling circuit boards on the cheap:
2016-02-15 by AncelB
Would a Proxxon like this fit the Dremel Press? Ebay # 121708044834
Re: [Homebrew_PCBs] Re: Drilling circuit boards on the cheap:
2016-02-15 by Harvey White
... The Dremel has enough runout that the bit wobbles and, as you noticed, breaks. I use a Proxxon, and have drilled hundreds of holes with the same bit (it
Re: Drilling circuit boards on the cheap:
2016-02-15 by AncelB
I use resharpened carbide in my dremel 395 with 1/8 shanks for PCB work. They work fine....I go down to around 0.31 mm. I can go smaller but bit breaking
Re: [Homebrew_PCBs] Power amp project
2016-02-15 by Bill Maxwell
Will do Norm but we are still at the early prototype stages, so it will likely be a while. 73 Bill, VK7MX
Power amp project
2016-02-15 by Norm
Have had similar ideas myself. I d be interested in your progress. Please e-mail me any available info on your project, to save reinventing the wheel. Norm
Re: [Homebrew_PCBs] Use for microwave oven ?
2016-02-15 by Bill Maxwell
A current project in my local radio club. Converting it from a power regulator to a voltage regulator and then using it to power a linear amplifier, built
Re: [Homebrew_PCBs] Drilling circuit boards on the cheap:
2016-02-14 by Stefan Trethan
You can easily resharpen HSS bits, even the very small ones. Don t fuss about the correct geometry, almost anything will melt through FR4. You can just touch
Drilling circuit boards on the cheap:
2016-02-14 by bobledoux@...
While I can find resharpened carbide bits, those cheap, bench drill presses tend to have too much runout. They also run too slow for carbide. As a result
Re: [Homebrew_PCBs] Use for microwave oven ?
2016-02-14 by Stefan Trethan
Obviously, you have to rewind the secondary. Yea pretty much everything would be much easier to just go to harbor freight and buy, including PCBs. So what are
[Homebrew_PCBs] Use for microwave oven ?
2016-02-14 by <n0tt1@...>
If it s got a transformer, you could remove it then rewind part of the transformer to make a spot welder. Google and you ll find plans and info. Charlie ...
Re: Use for microwave oven ?
2016-02-14 by alan00463@...
This is all you need to do, Corey: How To Clean A Microwave With Vinegar Here s what you need: vinegar water one drop of Young Living lemon essential oil
RE: [Homebrew_PCBs] Use for microwave oven ?
2016-02-14 by keith printy
A microwave oven transformer puts out lethal voltage which can kill you. Most transformers are around 2000 volts at 500 ma it only takes 100 ma to kill you.
RE: [Homebrew_PCBs] Use for microwave oven ?
2016-02-14 by Boman33
Tony, Would the defrost cycle on minimum work to dry wood? It would be automatic. For getting labels off magazines or other items I use a heat gun. The
RE: [Homebrew_PCBs] Use for microwave oven ?
2016-02-14 by Tony Smith
What are you doing with the inverter? Tony If it happens to be a Panasonic inverter microwave oven, grab it with glee and store it away for a future
Re: [Homebrew_PCBs] Use for microwave oven ?
2016-02-14 by Bill Maxwell
If it happens to be a Panasonic inverter microwave oven, grab it with glee and store it away for a future project..... If we lived closer, I would take it off
RE: [Homebrew_PCBs] Use for microwave oven ?
2016-02-14 by Tony Smith
The metal casting needs special crucibles made out of exotic ceramics or something like that. I ve got a microwave in the shop, I occasionally use it to heat
Re: [Homebrew_PCBs] Use for microwave oven ?
2016-02-14 by Stefan Trethan
Don t you think all this talk about freecycle or dropping her off at the side of the road is a bit premature? I m sure there is _something_ she can do in the
Use for microwave oven ?
2016-02-13 by Corey Minion
Fellow listers, sending this inquiry out to a few of my lists to get feedback. Wifey nuked a sponge (scrubby green w/yellow ) until it caught fire....yeah,
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-11 by Stefan Trethan
This what you were looking for? Hardly worth getting all worked up over a couple guys going
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-11 by rolohar@...
Will it ever end ??????????????? Roland F. Harriston, P.D. ... From: keith printy keethpr@ameritech.net [Homebrew_PCBs] To:
RE: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-11 by keith printy
The sterno I remember was just methanol From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] Sent: Wednesday, February 10, 2016 7:56 PM
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-11 by rolohar@...
HONESTLY..................... I wish we could get away from Chemistry 101 and get back to using our talents ( if there actually are any extant) to finding and
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-11 by wirehead73@...
The methanol in denatured alcohol sold under the Klean-Strip S-L-X name Thins shellac, cleans glass and metal. Clean-burning fuel for marine stoves. The MSDS
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-09 by rolohar@...
Here s a clue......................methanol is not acetone. Roland F. Harriston, P.D. ... From: AncelB mosaicmerc@yahoo.com [Homebrew_PCBs]
Re: Danger of Chemical Exposure.
2016-02-09 by AncelB
To each his own I suppose: I worked @ a Methanol manufacturing facility. I know the dangers better than a beautician.
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-08 by rolohar@...
Oh Joy! Now all of those ladies who regularly use acetone to remove old fingernail polish are safe! Roland F. Harriston, P.D. ... From: casy_ch@tbwil.ch
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-08 by Brian W. Gortney, II
For anyone interested in relatively hard information, here s a link to CDC s toxicological profile for acetone: http://www.atsdr.cdc.gov/toxprofiles/tp21.pdf
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-08 by Adam Smith
Acetone may not be that bad, I have heard that from other sources. Methanol is a real hazard to breath or for skin uptake, or so I was trained a long time ago.
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-08 by casy_ch@tbwil.ch
+ a fireproof blanket! Jean-Claude
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-08 by alan00463@...
When I talked to here about acetone in the workplace, my sister the beautician said that 1. She knew of no adverse health effects from breathing it at the
Re: Double sided registration
2016-02-05 by AncelB
For the Apache laminator, this one pass system produces repeatable 100% results at lower transfer temps.*
Re: [Homebrew_PCBs] Re: Double sided registration
2016-02-04 by Gary Tennyson
Thanks for the info. Gary Tennyson KO4CY ... This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
Re: Double sided registration
2016-02-04 by RDHeiliger
Have had both Brother printer and Apache laminator. Brother toner does poorly no matter what. I modified my Apache laminator with a home made temperature
RE: [Homebrew_PCBs] Chemical Exposure.
2016-02-04 by Boman33
I recently saw a video from Sweden. About a liter of water was thrown up in the air and it came down as ice. The temperature was -40C = -40F. Bertho From:
Re: pcb?
2016-02-04 by Cristian
Hi, list. I ve learned that you are good in preventing any chemical exposure. Who is good in homebrew PCB, please? Cristian
Re: [Homebrew_PCBs] Chemical Exposure.
2016-02-04 by wirehead73@...
Those who are afraid of acetone and denatured alcohol should not be painters, nor should they let their children grow up to be painters. Or, was that song
Re: [Homebrew_PCBs] Chemical Exposure.
2016-02-04 by Bruce Parham
Yes, very nasty stuff and we all know what fish do in it!
Re: [Homebrew_PCBs] Chemical Exposure.
2016-02-03 by Stefan Trethan
You better not mess around with that, countless people have been badly injured or killed by water that was too hot, or too cold, or not enough of, or in an
Re: [Homebrew_PCBs] Danger of Chemical Exposure.
2016-02-03 by Jean-Paul Louis
I would not trust wikipedia for anything related to my own life. If you want reliable data, searcher MSDS Acetone” from a reputable website. One I used is
Re: [Homebrew_PCBs] Chemical Exposure.
2016-02-03 by Donald H Locker
There is a difference between volatility and flammability. Volatility is a measure of how rapidly the product evaporates; flammability is a measure of how
RE: [Homebrew_PCBs] Chemical Exposure.
2016-02-03 by wa4qal@...
The rules for denatured alcohol in the USA are contained in Title 27 Code of Federal Regulations Part 21 (e.g., 27 CFR 21):
RE: [Homebrew_PCBs] Chemical Exposure.
2016-02-03 by keith printy
The underwriters laboratory flammability rating says acetone is more flammable. Don’t forget there are other solvents in gasoline especially in winter to
RE: [Homebrew_PCBs] Chemical Exposure.
2016-02-03 by keith printy
I use either ferric chloride or ammonium persulfate to etch,nothing else. All explosives consist of a fuel and an oxidixer , for example did you know solidox
RE: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-03 by keith printy
I’ve seen bitrex in acetone here in the states. Another nasty chemical is nutrasweet which is an artificial sweetner. I forget which but it breaks down into
Re: Double sided registration
2016-02-02 by gtennys@...
Does the modded Apache AL13P laminator work OK with the Brother toner? I ve been following the group for a while, but I don t know if I ve seen this
Re: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-02 by Stefan Trethan
In Europe they usually add bitrex, which tastes exceedingly bad, but doesn t kill you. But I think you might still want to kill yourself anyway, just to stop
RE: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-02 by Andrew Volk
If you want to read an interesting book that includes some of the history of denatured alcohol, look for “The Poisoner’s Handbook,” by Deborah Blum. The
RE: [Homebrew_PCBs] Re: Danger of Chemical Exposure.
2016-02-02 by Tony Smith
Yeah, hobbyists really don’t get enough exposure for it to be a problem. A board a week isn’t long term exposure, unless you keep the open bottles under
Re: [Homebrew_PCBs] Re: Double sided registration
2016-02-02 by Harvey White
... Previous postings about Brother Laser printers have indicated that the toner melts at a higher temperature. This seems to be more than the average