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by E
Sat Oct 26, 2013 5:35 pm
Forum: Other projects
Topic: 12v Li-ion charging circuit?
Replies: 14
Views: 6347

Re: 12v Li-ion charging circuit?

Thanks, will do :)
by E
Fri Oct 25, 2013 5:50 pm
Forum: Other projects
Topic: 12v Li-ion charging circuit?
Replies: 14
Views: 6347

Re: 12v Li-ion charging circuit?

Many thanks for the replies all, and the diagram fixitsan - that is exactly the functionality I was hoping for :) I think I'll go with the wall wart setup, as it'll mean a bit less weight and heat inside the speaker chassis (not that it's a big issue). I'm hoping to document my build to some extent,...
by E
Thu Oct 24, 2013 6:33 pm
Forum: Other projects
Topic: 12v Li-ion charging circuit?
Replies: 14
Views: 6347

Re: 12v Li-ion charging circuit?

@r4049zt I'd ruled out NiCad purely due to the cost for the amount of amp hours I'll need. A circuit to activate the recharge only when the battery was below a certain level would be nice - I'll have look into zener diodes and fet transistors and brush up on my electronics! @fixitsan Thanks for all...
by E
Wed Oct 23, 2013 9:46 am
Forum: Other projects
Topic: 12v Li-ion charging circuit?
Replies: 14
Views: 6347

Re: 12v Li-ion charging circuit?

Thanks for the replies. @hampi Yes, I wondered if it was a micro controller project, as I know most mobile devices have them for battery management. @fixitsan The batteries I have been looking at are 12v, and around 6800mhA, as everything else runs off 12 volt apart from the Pi. Something like this ...
by E
Sun Oct 20, 2013 2:58 pm
Forum: Other projects
Topic: 12v Li-ion charging circuit?
Replies: 14
Views: 6347

12v Li-ion charging circuit?

Hi, I'm working on my first project with a Pi; a semi-portable 12 volt rechargeable wifi speaker. The big problem I'm having is with how to charge Li-ion batteries. From what I've read, they really don't like being charged and drawn from at the same time, so if I use them I'll require some sort of c...
by E
Sat Jul 28, 2012 7:18 pm
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

I would also like to ask, the cardboard box in which Element 14 has sent me RP is strong enough and its outside height is abt 23 mm. Looks nice, cute and small. Why is it that our Punnet RP case has much more height ? Is it for ventilation ? In that case does RP hangs a few mm above the inner surfa...
by E
Fri Jul 27, 2012 5:25 pm
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

FX4 wrote:This is great, any chance at an 8x11 version. It's a bit hard to come up with A4 stock here in the U.S..
I'd suggest downloading the .SVG version and changing the page size in Inkscape. It should fit ok if you delete the instructions or print them on another sheet.
by E
Sat Jul 07, 2012 12:49 pm
Forum: Other projects
Topic: A pi enclosure I made :)
Replies: 10
Views: 4790

Re: A pi enclosure I made :)

Really nice work!
by E
Sun Jul 01, 2012 7:08 pm
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

Thanks very much E for your latest punnet pdf file. I got my Pi yesterday ( Yay! :D ) I bought an A4 sheet of mylar from my local stationers for 35p and laid it on top of your design and traced out the lines and I now have a rather pretty case. I did modify one of the fold over tabs so it slides in...
by E
Sat Jun 30, 2012 2:00 pm
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

Ok, it seems it is a known (but not to me!) quirk that SVG's from Illustrator are scaled down to 80% when opened in Inkscape. I've scaled it up and the MK1 SVG file should now be the right size in Inkscape, but it's now too big if you open it in Illustrator. Not much I can do about it I'm afraid, bu...
by E
Sat Jun 30, 2012 12:20 pm
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

Sorry I've not been on the forum for a while to do any replies. I was very pleasantly surprised to see this thread still ticking away, and all the great mods going on :) Hi there E, I have a problem with your SVG version. When I open it in Inkscape, the page is defined smaller than A4 (16.19 x 23.30...
by E
Sun Jun 17, 2012 10:58 am
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

I would think it would work ok on lighter card, it just obviously won't be as strong, and perhaps a slightly looser fit.
by E
Tue Jun 12, 2012 6:29 pm
Forum: Other projects
Topic: The sub £5 DIY Pi Case
Replies: 12
Views: 11493

Re: The sub £5 DIY Pi Case

Inventive!

Would sewing through the holes work for putting the logo on the top?
by E
Tue Jun 12, 2012 6:27 pm
Forum: Other projects
Topic: The PlyPi
Replies: 48
Views: 16880

Re: The PlyPi

Yes, very nice indeed!
by E
Tue Jun 12, 2012 2:50 pm
Forum: Other projects
Topic: Solid Aluminium Case
Replies: 25
Views: 7529

Re: Solid Aluminium Case

liz wrote:Why do men like titanium so much? There's a jewellers in town that sells titanium rings (I know a couple of people who bought them as wedding rings), but only in man-sizes.
Pfft... titanium rings are so last season. Carbon nanotube rings are where it's at now ;)
by E
Mon Jun 11, 2012 11:19 am
Forum: Other projects
Topic: Case alternative in the works
Replies: 27
Views: 7331

Re: Case alternative in the works

I like the idea, but I's be a bit wary of it being completely open behind a tv/monitor. Maybe an optional lightweight clip on cover?
by E
Mon Jun 11, 2012 11:16 am
Forum: Other projects
Topic: Solid Aluminium Case
Replies: 25
Views: 7529

Re: Solid Aluminium Case

Very nice!

I'm personally not keen on the screws showing, and maybe I'd round the corners, but it's a great solid design. (I'm a fan of Apple's design ethos ;) )
by E
Sat Jun 09, 2012 6:31 pm
Forum: Media centres
Topic: Raspbmc Release Candidate
Replies: 48
Views: 25612

Re: Raspbmc Release Candidate

I'm not sure now if I downloaded the beta or this second release, but it worked perfectly first time! Very nice work. In fact great work! The only issue I've had is with Airplay - no sound from any music, even though the visualiser is displaying it, and some video streams won't play. I'd guess it ha...
by E
Sat Jun 09, 2012 10:26 am
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

Great to see the different evolutions and directions people are taking this in. :) The clear version looks way better than I imagined - I thought it would be all glue and edges. And laser cut and embossed also looks very cool!
by E
Sat Jun 02, 2012 2:58 pm
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

Ok people, here is what I'm feeling confident enough to call Punnet Mk1 (now I have a Pi for testing it with). There are 2 downloads: Standard PDF SVG editable version for modding. http://i1170.photobucket.com/albums/r526/squareitround/Punnet_Mk1_group_shot.jpg Larger image Short list of changes: >S...
by E
Sat Jun 02, 2012 2:13 pm
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

stevepdp wrote:
lordelp wrote:Love the punnet, it inspired me to create a BBC Model B themed case...

Image
This is awesome, thanks for sharing.
I second that awesomeness!
by E
Sat Jun 02, 2012 2:11 pm
Forum: Other projects
Topic: Max height of rasPi?
Replies: 6
Views: 9072

Re: Max height of rasPi?

Just to, the callipers say my Pi is 20.9 mm
by E
Wed May 30, 2012 7:02 pm
Forum: Other projects
Topic: Max height of rasPi?
Replies: 6
Views: 9072

Re: Max height of rasPi?

The full height is ~ 21.2mm, the USB ports (which are the tallest thing) are ~ 16mm from the top of the board. These are based off my own quick measurements and Lolo34140's STL model, which is the most accurate I've come across. Does that count the couple of mm the SD card on the slot takes? Yes, t...
by E
Wed May 30, 2012 6:31 pm
Forum: Other projects
Topic: Max height of rasPi?
Replies: 6
Views: 9072

Re: Max height of rasPi?

The full height is ~ 21.2mm, the USB ports (which are the tallest thing) are ~ 16mm from the top of the board. These are based off my own quick measurements and Lolo34140's STL model, which is the most accurate I've come across.
by E
Wed May 30, 2012 6:05 pm
Forum: Other projects
Topic: Punnet - a print at home cardboard case
Replies: 149
Views: 165527

Re: Punnet - a print at home cardboard case

Thanks for the feedback all :)

My Pi arrived today ( :D ) which is going to make things soooo much easier, meaning hopefully I'll have the final version of Punnet up by the end of the week. If only I'd waited a week longer before doing the original plans... :roll:

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