LEGO NXT battery cover

[h-g-t]

I was looking for a spare battery cover to try out some ideas.

I couldn't find anywhere to buy one but came across these alternatives and thought I would post them in case anyone else is looking for a cover. And, yes, I did try to show these as images but it would not work.

First, Philo's well known alternative power supply

http://www.philohome.com/nxtsupply/nxtsupply.htm

Another supply but using a voltage regulator (I think)

http://www.google.co.uk/imgres?q=nxt+ba ... =1&chk=sbg

http://www.google.co.uk/imgres?q=nxt+ba ... =1&chk=sbg

http://www.google.co.uk/imgres?q=nxt+ba ... zBg&zoom=1

And finally, one from Thingiverse

http://www.google.co.uk/imgres?q=nxt+ba ... zBg&zoom=1

Got a quote of £14 + tax for making this one so I suspect my version will use some old pcb I already have.