Yeah I ordered an $0,88 plastic caliper to measure cells or things that scratch easy. Good Quality 150 mm 6ā Gray Plastic Mini Caliper Vernier Gauge Micrometer
http://s.aliexpress.com/zQrEFJB3
(from AliExpress Android)
Even cheaper now
Smittyjojo, yes it Iād frustrating, order and forget is rrally best for blood pressure.
Lots have been send out, too late for a V2 marking on box.
Yes, I probably shouldnāt understate either. Donāt short a car battery. Those things are often rated for 500+ Amps on a cold day, and in one test of a relatively small battery they measured 1700 A with a dead short. A larger battery sized for a truck could probably put out thousands of Amps. At 12V, that means tens of thousands of Watts, concentrated into a relatively small area, which can cause serious damage or even death.
I had a car battery explode on me once when I turned the ignition. Had the bonnet open (hood for those using corrupted Englishā¦) and bits of it landed a good 100 yards away. Quite spectacular but potentially bad for your underwear.
The simplicity makes it an awsome idea.
I love extra features we have these days but, when ity becomes so complex you need a tutorial.... that's a bit much.
I instantly thought of the shorting aspect of using metal calipers also when I saw the picture, but I just figured that the set up seen was just for the sake of the photo. Metal calipers could be used with an insulating spacer and then just subtract the thickness of the insulator from the measurement. The insulator could be as simple as a piece of card stock.
thanks the miller, i just ordered the ali plastic calipers. 
ken
Seems like you can use wax paper / baking paper as insulator too. I use it a lot in my micro to collect the fat and gravy when baking raw food.
GREAT! Even more tables.
Love it
Dale out of all of your chargers, which is your go to? Or does it change depending on the cell?
Wow all this talk about my picture using metal calipers. Iāll admit I almost measured the cell bare but then realized why that would be bad and put a small piece of paper on one side. The picture you see is after measurement with the caliper resting on the table (not reaching the positive terminal)
Apart from the safety issues, a fat spark could ruin the precision ground surface of the callipers, spoiling them for precision use. Put a piece of e.g Kapton tape, or ordinary Sellotape on one end first.
And do treat car batteries with respect, inside they contain an explosive atmosphere of hydrogen and oxygen. If the battery has been over-charged and āboiledā the electrolyte (acid) heavily, there may little (but highly concentrated) acid left, and most of the volume filled with explosive gas. Abuse one with e.g. a short and if an internal spark happens e.g. when a bit of the lead inside melts, or an external spark ignites lingering hydrogen, kaboom ! A substantial explosion, happened to a neighbour, car bonnet blown off and conc. sulphuric acid sprayed everywhere. Before attaching leads, ventilate thoroughly in case there is any hydrogen lingering around.
Modern āsealedā ones are safer, they have a catalyst inside to recombine the H2 and O2 to water, but it is a slow process which does not keep up with heavy charging currents, e.g. after a battery has run low, then been recharged on a drive by the full output of the alternator.
Hydrogen has one of the widest range of flammability limits, so is an extremely dangerous gas to have lingering around. And when generated by electrolysis inside a lead-acid battery the perfect explosive mixture is produced.
Foldable Q8 Diffuser made by wax paper.
> inside a lead-acid battery the perfect explosive
Capable of throwing sulfuric acid all over the area, too.
It carries a ādo not muck with thisā warning
Talk about the B in BLF
Anyone remember where to find the post where a 3d printed lantern diffuser was featured, with a link to the program? A friend of mine just got a printer today and I canāt seem to find the post with thread searches.
Is there a post with the links of the protosā reviews ? Just curious
thanks
Thatās the one! Thanks a lot.
By the Accountantās Recommendation :smiling_imp: 
How do I get that quick Link/cheat sheet in Englsh?