Some of the guys over on the yahoo DIYpcb group have been fitting their laminators with their own heat controls.

Mine works find but I let it run for about 10 or 15 minutes after the unit claims it is ready. A nice digital readout would be handy.

3v0

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Hi here are 2 pictures of a board that i did.I have used Ferric Chloride to etch the baords(got them in between 1 to 2 minutes this time since less copper to etch).

About the uniform ironing. I use a bedsheet(or any single layer cloth) to cover the board with the paper on top and then iron. That way no matter if you push too hard on any side it wont ruin the print and you well get a perfect print(even with the paper i use).

About the Copper Chloride Acid etchant.Is there any way one can use it with out the acid cause i am not allowed to keep acid in the house(hell i am not even allowed to keep Ferric Chloride in the Fridge!). If not then what is the simplest way to nuetralize Ferric Chloride before disposing it off.

Attached Thumbnails

   

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Syed

 

FeCl does not need refrigeration. Mine is OK at room temperature since I bought it in 1967.

Precipitate the copper out first with baking soda, dry the precipitate and wrap it waterproof for the trash. Keep the copper out of the food chain.

The remaining FeCl should be well diluted and kept away from any metal or fixtures that you don't want stained. It's used by the ton in waste water treatment, but keep away from children in any concentration.

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de KI6RWX

 

The temperature here is like 38 to 40 degrees.

After precipitating the FeCl we can reuse it or dump it?

@MrDeB, Boncuk gave a neat little trick of filling up unused spaces in Eagle. I used it in the board above.

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Syed

 

any other way??
in express pcboard it has a filled plane that you can specify what clearance you want .
then just cover the entire board and presto you have a filled plane with specified trace clearances.

 

Fantastic! I have used ExpressPCB for years and newer noticed (found out) what that icon was used for.
It has of cause an extensive manual that I thought I didn't need to read because everything seemed so intuitive. I naturally had checked out several other free programs first.
Thanks MrDEB!

 

If you want to make a "water-release" [ADVERT-REMOVED] (Toner Transfer Paper) do yourself a big favor and Google "Dextrin". That's the generic name for the "recipe". It requires a LOT more than mere starch to make this work. It's a byproduct of sulfuric acid and a whole host of other "goodies" to make a perfect release system around the top fibers of the paper.

For the effort you'd have to go through to recreate then try to coat uniformly over a very coarse loose-weave paper (and no body has a knife-coater to do this properly), doesn't it make more sense to purchase this inexpensive paper to give you a perfect release? It only costs about 1.6 cents/sq. in and you can send a VERY SMALL piece of this paper through ANY laser printer or copier using a simple "plain paper carrier" trick (explained on the very informative website).

Make life easy on yourselves and stop trying to reinvent the wheel! My God we've got too many of them already. You guys need to spend time on HHO as the next wave of the future! (ie. google "HHO" for Hydrogen Hydrogen Oxygen development to run stock engines on water - it's now viable!). [CONTEXT-EDITED]

Just a thought I wanted to share with you guys unless you absolutely must perform timely exercises in futility.

Frank
PulsarProFX.com

MOD EDIT: I have removed the advertising. Please read the rules.

 

I have to say I'm with you brother. Not much use wasting time with it. If there would be better way we would no it by now.

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Burt
http://mybe80be.com
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I talked to a large oil company rep and he told me not to bother with HHO because oil is already cheap and easy. Why reinvent the wheel when we can leave the difficult "support" things like this to companies who can do it best at low cost.

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Mark Higgins

 

That's very good.

The problem I have is that my boards take ages to etch, the last one took nearly an hour.

I use sodium per sulphate and sodium bisuphate etching fluid. I know it should be slower than ferric chloride but this is ridicules.

EDIT:
Can you please take a better picture?

Do you have a scanner?

I can get far better results scanning my boards than using my digital camera.

Failing that, doe your camere have a macro mode?

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Obviously you jest but in the wrong direction. We have in fact not figured out all that is necessary to generate enough gas "on demand" fast enough. We only know the basics. We have barely scratched the surface on tapping the incredible energy in water, so "no", we aren't duplicating or reinventing any "wheel" anywhere.

This is the new frontier to run all internal combustion engines on water. It's going to be heavily involved in electronics. We can do it now for lawn mowers and small engines. It's pretty amazing to just pour water into a lawnmower! The trick is to be able to create a LOT of HHO on demand for vehicle acceleration. At that point we'll only need oil companies for aviation grade fuels and lubrication. Water immense power is completely untapped. The interesting thing about HHO is that it's incredibly easy to make right now in your garage with simple setups. Electric cars will be a non-starter in a few more years of us "tinkerers" to get the tricks ironed out for Detroit. Unfortunately, I'm sure Japan will have the first HHO out. They know how to look ahead... a lesson we can't seem to learn decade after decade as a growing 2nd rate county in production capability. Sad but true.

 

Wow, I think you just lost a Lot of customers with that statement...

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Mike2545

 

Looks like a train wreck to me. It seems we have turned into a pack of wolves.

The oil and transfer paper comparison is a poor choice. $15 worth of paper will last most people a year or more.

Most cars are driven at least 10K miles per year. At 20 mpg they use 500 gallons. At $2 a gallon the is $1000 a year for gas (adjust as needed).

Even at the modest cost of $2 per gallon saving on transportation are 100 times greater then on making your own transfer paper.

A better comparison would be the saving from making your own resistors.

3v0

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BCHS/3v0's Tutorials
Junebug USB PIC programmer kit., USB Bit Whacker,
The 15 Minute Printed Circuit Board! (+drill time)

 

Left picture shows a standard toner /magazine paper and a Elmer's glue coated after soaking in hot simmering water, for 3 minutes.
Right picture shows the $6.00 "kit", you can do 6 pages in 6 minutes. And there is enough glue for about 75 full pages!
The plastic clip board (blue background) came from Wal-Mart, the other two items from Ace Hardware.

Attached Thumbnails

   

 

What is the item on the left in the right picture? The spreader and the glue I get.

6 pages in 6 minutes. That is to spread them and dry time or just spread them? I might add water and a paint guy and spay mine for a thin coat.

For $6 bucks, heck, I'll try it.

The only issues I have is the 2-3 (sometimes 5) minutes getting the picture paper coating off and trust me on the plastic brush to open the back coating saves me 10 minutes.

Now if we can get the etching to 2 minutes, that would be great

I like the way I do it, but looks like you may have found something to speed things up as long as it's laser printer approved.