Re: [Homebrew_PCBs] Mouthwash
2007-04-17 by Roland F. Harriston
Kevin: Thanks for the information. Roland F. Harriston *********************
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Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-17 by Stefan Trethan
On Tue, 17 Apr 2007 00:43:19 +0200, simeon webber ... Could the copper salt not be collected and given away as new etchant? I m not sure
RE: [Homebrew_PCBs] Mouthwash
2007-04-17 by K Wolf
Roland, The brother printer is model number HL-2070N. It is identical to the HL-2040 (but with networking feature). The new HP is a Laserjet 1012. The papers I
Re: [Homebrew_PCBs] Hammermill Office One Glossy Paper
2007-04-17 by Roland F. Harriston
The actual Hammermill number for the paper I inquired about a few days ago is: #163020 The number given by another list member (229030) is most likely the
Re: [Homebrew_PCBs] Mouthwash
2007-04-17 by Roland F. Harriston
Kevin Wolf: Can you be a bit more specific: Which Brother machine (model number) did not serve your purpose? Which HP laser (model number) machine did you
RE: [Homebrew_PCBs] Re: Has anyone tried an Ironing Press instead of an iron to transfer laser toner
2007-04-17 by K Wolf
I almost had one coming in the mail- but it s on backorder. Def keep us posted though. -k ... From: Homebrew_PCBs@yahoogroups.com
Re: Has anyone tried an Ironing Press instead of an iron to transfer laser toner
2007-04-17 by chalaco_51
I am presently using an HP Laserjet 1200, the problem that I am seeing is that since the board is bigger than the small iron I am using, the board appears not
Re: Has anyone tried an Ironing Press instead of an iron to transfer laser toner?
2007-04-17 by kevinmwolf288
Chalaco, What laser printer are you using? Is the iron on its highest setting? I recently discovered that my Brother laser does not work well at all for TT,
Mouthwash
2007-04-17 by kevinmwolf288
Hey all, I m a new member here. I ve had my hand in homemade pcb s, but I just recently got back into it. I would like to share a few tips with everybody so
Re: Disposing of Chemicals
2007-04-17 by pcb.easy
... a lid ... by ... and ... Thanks for all your help. Sorry if my questions are elementary, I have no chemistry background. I like the etch, and speed of the
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-16 by simeon webber
by far the best way to dispose of chemicals containing copper is to use cement or lime added as dust to use liquid stir let it go hard then burn it ,,,, Adam
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-16 by Adam Seychell
... Same as any chemical. In a clearly labeled container and away from children who likely to try eat it. Its a copper compound. Label your chemicals for other
Re: [Homebrew_PCBs] Re: Etching with HCl and H202
2007-04-16 by Dale J. Chatham
And, though I d never suggest anyone try it, FeCl3 makes a decent cure for poison ivy. Of course, so does a brush and clorox, but I wouldn t suggest that one
Has anyone tried an Ironing Press instead of an iron to transfer laser toner?
2007-04-16 by chalaco_51
I ve been having some bad results with my present procedure to transfer toner using the old iron method, and this is even with the blue peel stuff. I have been
Re: Etching with HCl and H202
2007-04-16 by Bob_xyz
... You can find a lot of good information on making and regenerating CuCl etchant in the Links section of the group. Regards, Bob
Re: [Homebrew_PCBs] Re: home-made dremel "drill press"
2007-04-16 by DJ Delorie
... It is. I made the holes a tad small, then spindle sanded them until it just fit. ... I can try that. I have a 2lb anvil. I originally thought of having
Re: [Homebrew_PCBs] Re: Etching with HCl and H202
2007-04-16 by Dale J. Chatham
One can get somewhat small aquarium water pumps that will do a better job of moving the etchang, you won t haveto wory about bubbles on the board keeping
Re: [Homebrew_PCBs] Re: Etching with HCl and H202
2007-04-16 by Dale J. Chatham
I ll guess that if you add more H2O2, it will work again. With the impurities from the etching and the natural tendency of H2O2 to go to H2O and O2, I d bet
Re: home-made dremel "drill press"
2007-04-16 by warrenbrayshaw
... Another great example of simple woodwork providing an elegant solution. The design, heavy dremel on the end of long flexible arms, is going to show
Re: [Homebrew_PCBs] Disposing of Chemicals
2007-04-16 by Dale J. Chatham
Looks like I was wrong. Dang, forgot more chemistry than most folks probably ever knew :)
Re: Disposing of Chemicals
2007-04-16 by pcb.easy
... could ... bond ... clue, or ... hydroxide. ... be ... Adam, The sludge is a bright pale blue, and the liquid is very clear. So you think it is copper
Re: [Homebrew_PCBs] Disposing of Chemicals
2007-04-16 by Adam Seychell
... You are doing conventional heavy metal waste treatment by precipitation of metal hydroxides. For such small quantities you best off drying the sludge in a
Re: [Homebrew_PCBs] Disposing of Chemicals
2007-04-16 by Adam Seychell
... CuCl is copper(I) chloride, a white insoluble and unstable solid. Or you have to convince yourself that sodium ion prefers chloride, therefore leaving
Re: [Homebrew_PCBs] Re: Disposing of Chemicals
2007-04-15 by Dale J. Chatham
That is my thought. I suppose the following could occur: CuCl + NaOH - CuOH + NaCl? There has to be a way to predict it, but it s been a long, long time.
Re: Disposing of Chemicals
2007-04-15 by pcb.easy
... NaOH, ... could ... bond ... clue, or ... Thanks for your relpy. Your correct, I don t know why I typed HCl _ NaOH = NaCl + H2O2, H2O2 is Hydrogen
Re: [Homebrew_PCBs] Disposing of Chemicals
2007-04-15 by Dale J. Chatham
I m guessing, drawing on high school and college chemistry. H2O2 + HCl + Cu - 2H20 + CuCl Unreacted H2O2 and HCl remain in solution. HCl + NaOH - NaCl + H2O
Re: [Homebrew_PCBs] Disposing of Chemicals
2007-04-15 by Leon
... From: pcb.easy To: Sent: Sunday, April 15, 2007 9:18 PM Subject: [Homebrew_PCBs] Disposing of
Disposing of Chemicals
2007-04-15 by pcb.easy
I design my own boards using positive acting pre-sensitized boards. My developer solution is made of 1/2 teaspoon Sodium Hydroxide in 300ml water. My etch
Re: [Homebrew_PCBs] home-made dremel "drill press"
2007-04-15 by Leon
... From: DJ Delorie To: Sent: Sunday, April 15, 2007 5:32 PM Subject: [Homebrew_PCBs] home-made dremel
home-made dremel "drill press"
2007-04-15 by DJ Delorie
http://www.delorie.com/pcb/dremel-stand/ My big drill press has too much runout for the tiny drill bits, and my hand isn t steady enough to drill manually with
Re: [Homebrew_PCBs] Re: Hammermill Office One Glossy Paper
2007-04-14 by Roland F. Harriston
Izzo: Thanks for the response. I did see Hammermill #229030 listed on the Sam s Club website, but one has to be a paid-up member to order online, and I m not
Re: Hammermill Office One Glossy Paper
2007-04-14 by izzo47
Looks like Sam s,online, maybe the only place to order. Tried Staples & Office Max...Office Max had another Hammerhill paper very similar. Sam s Club
Re: Newbie questions
2007-04-13 by derekhawkins
... Here s a tip, change the light switch for a dimmer-switch, that way you can use a brighter bulb and still meet lighting levels for all occasions. I also
Re: [Homebrew_PCBs] Re: Hammermill Office One Glossy Paper
2007-04-13 by Roland F. Harriston
Can anyone provide me with the UPC number for Hammermill Office One Glossy Paper? The item number (229030) previously posted here by a member does not seem to
Re: Clean Pulsar TTS after etching?
2007-04-13 by pgdion1
... board s ... just ... sparkplug wire ... I have good luck with Alcohol and steel wool. I squirt some 90+ alcohol on the board and then scrub with the fine
Re: Newbie questions
2007-04-13 by pgdion1
My Darkroom is my shop in the basement with a 60w bulb in the corner. This provides sufficient light to work by and still allows for long times working with
Re: Best method for 2oz copper on 1/16" boards?
2007-04-13 by Len Warner
... In your experience and opinion, do the joints usually fail 1. through the body of the solder or 2. alongside the solder tag? 1. suggests to me either a)
Re: Newbie questions
2007-04-13 by Len Warner
... Conc. sulphuric acid is a powerful dessicating agent and would absorb atmospheric moisture. If you splash conc. sulphuric acid onto organic matter it will
Re: No more going to Radio Shack - First attempt with Muriatic Acid GOOD!
2007-04-13 by skullworks
... bucks. ... but ... Color ... of ... test ... 400ml ... the ... that ... I ... Mart in ... sure of ... Blue would seem to indicate the formation of Copper
Re: Newbie questions
2007-04-13 by derekhawkins
... I use sodium metasilicate with off-the-shelf positive resist boards. An 80 cent packet lasts about a year. Have NaOH in abundance but use it only for
Re: [Homebrew_PCBs] Re: Best method for 2oz copper on 1/16" boards?
2007-04-12 by lists
In article , ... Possibly but there is also the weight and leverage caused by valves. Not forgetting the forces involved in getting
Re: [Homebrew_PCBs] Re: Best method for 2oz copper on 1/16" boards?
2007-04-12 by lists
In article , ... Fact of life - valves get hot. I have several times had to make PCBs to replace burnt out ones in old
Re: Direct Inkjet Printing board prep
2007-04-12 by docstein99
I wrote a small documentary on my progress here: http://www.raidgear.net/rnd_inkjet.aspx
Re: [Homebrew_PCBs] Re: Newbie questions
2007-04-12 by Leon
... From: jusdebra To: Sent: Thursday, April 12, 2007 6:16 PM Subject: Re: [Homebrew_PCBs] Re:
Re: [Homebrew_PCBs] Re: Newbie questions
2007-04-12 by jusdebra
I know it s common, so is my name. I was going to change it to, Juanshettia Adafolarin, but chickend out. debra (The Dave Miller s that I know are GREAT
Re: [Homebrew_PCBs] Re: Newbie questions
2007-04-12 by jusdebra
Thanks Phil (and others), I think I m ready to mess up my first board. My dad and I built a plastic tray and he used a propeller with shaft to provide
Re: [Homebrew_PCBs] Re: Newbie questions
2007-04-12 by Stefan Trethan
... Will it really concentrate? Sulphuric acid is very hygroscopic, should it not absorb moisture from the air? But this was not the catch making it unsuitable
Re: [Homebrew_PCBs] Re: Newbie questions
2007-04-12 by Stefan Trethan
... Mine s not from staples (since we don t have them here, although they are in Germany already...). But glossy inkjet is a good start, matte clay coated
Re: Newbie questions
2007-04-12 by Dave Miller
... I was thinking, Is he in this group? ... Your Dad would probably be one of the first to agree with me that Dave Miller is a fairly common name. There are
Re: [Homebrew_PCBs] Direct Inkjet Printing board prep
2007-04-12 by William Nelson
All I do is clean it with a gray fiber 3M pad, wipe well with acetone, and preheat before the print. Not at all complicated and I get great results. Remember