Conductive Glue

[ntpntpntp]

... "circuit writer" pen ... [after 24hrs] components may be soldered to the circuit board you have created" ...

"After heat curing only" (whatever that means?) and only with low temperature solder, according to the pdf data sheet for CAIG CircuitWriter liquid conductive ink as found here

http://store.caig.com/s.nl/sc.2/category.174/.f

Sounds like interesting stuff though.

 

[tramcar trev]

Empty them first!?

Seriously, isn't there a coating on the inside, so that the acid does not 'eat' the inside of the can?? This would need to be removed I reckon??
If it IS a tin (plated) can, then soldering to the tin-coating should not be a major problem.. What the 'steel' core will be like these days is anybodies guess!

Interesting, I wonder what one could make from Fray Bentos pie tins?

 

[trammayo]

Something for the chucks to eat some grain from? Well thats what I used one for!

 

[PhilP]

Emergency 'coolie'-style hard-hat?
OO paddling pool in a park..
Whatever the round thingies are for in a model sewage works..
Top / bottom of a water tower..