The McKenzie’s Blog…

Today after I finished work, I decided I needed to get out for a walk.  Emma was sleeping and Yuki was hoping to get some sleep before she started work in the evening.  Lisa didn’t at all want to have a sleep.

So, I decided to take her with me.  The question was where too.  I decided to take her to Wicken Fen again.  We’d gone there before (Wicken Fen…) with Lisa’s school.  That visit was good for the kids but we didn’t really get to see too much of the place.  Today when we went back we’d ended up walking about 1.25 to 1.5 miles around part of the area.  Lisa had a good time but sure was tired.  Surprisingly she didn’t fall asleep on the way back home.

There are some pics and a video from the day HERE - here are some samples.

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Lisa’s case of Chicken Pox ended about 10 days after it first showed up, and about 5 days later Emma broke out in them.  Emma was quite upset the morning Lisa woke with her spots.  Emma wanted spots too! haha she was upset that Lisa had something she didn’t. 

We kept telling Emma she’ll get spots too and she had keep looking for them and tell us as soon as she found her spots.  The day they came, she came running to tell us she’s finally got spots.  About 2 days later she stopped liking them

Emma can’t quite say “chicken pox”, it comes out sounding more like “chin chin box”.

All in all both of the kids have come through this pretty easy.  Lisa has only one spot that was on the verge of getting infected but I don’t think it really did.  It’s quite large and still visible, but it is going away slowly.   Emma so far only has one that looks like it’s going the same way as Lisa’s, but we’ll have to wait and see how it goes.

I’m glad both have gotten it now and it’ll be clear before they go back to school in early Sept.  It also means we won’t have to deal with this ever again.

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I’ve been working on this project for a few weeks (lack of time).  Basically, I bought a huge 120A/hr battery to go camping with and to use for other things, such as portable amateur radio work.

Well, that’s all well and good, but how do I connect things to it?  I wanted some easy way to connect multiple things to the battery without having to have a number of wires getting attached to the battery.

So, not wanting to spend ARM+LEG and either our first or second born to buy something already made, and it wouldn’t include the cig plugs either.

So, I made this:

Read on if you’d like to see the other pics .. or, you can just go and look at them in my Flickr Gallery

More →

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There’s not really been too much happening that needed an update to the site really.  I’d taken some vacation from Aug 2 until Aug 13 with plans to go camping in South Devon for a week.  Those plans were cancelled when Lisa came down with a case of Chicken Pox 3 days before we were scheduled to leave.   Luckly I was able to get a full refund form the camp site.   We had to cancel as 80% of the reason for going to the campsite chosen was because of the included access to an indoor/outdoor water and leisure park.  None of which Lisa would have been allowed to enjoy because of her Chicken Pox.

I ended up spending the week at home with miserable weather and unable to really do anything productive as we couldn’t take the kids anywhere that they might expose people to the infection.

Thankfully I start back to work on Wed morning, albeit from home as I’ll be working a week of “early shift” (7am-3pm), and we always only work that from home.

Hopefully something more exciting will happen soon so I can post a proper update :)  We are expect Emma to get the pox within a couple of weeks as well, that’ll be fun t do it all over again.

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Yesterday I took a walk around part of Grafham Water, however my GPS logging of the walk didn’t really pan out.  Some have considered to be a pretty great and impressive person, but even I can’t walk on water, I don’t consider that a failing though because I like to swim, and well it tough to do when you can’t get past the surface

Anyhow, I took a load of pics which you can see if you CLICK HERE.  Some samples of the pics.

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Today I took the girls to Welcome to Wild Britain - Bedfordshire’s Butterfly and Conservation Park.

Yuki was working and I needed to get out of the house today with the girls, so I decided to take the to this park.  We’d talked about it for a while but today was the day.

You can see the photos from the Flickr Gallery.

The girls had a great time.. they even did some crafts there too.. they painted some paper butterflies, they did some drawing and coloured in a small bit of paper that was then pressed into a badge with a pin in the back to put on their clothes.

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I’ve been searching the net for ages looking for the wiring diagram of the 12VDC power cable for my Respironics REMstar Plus CPAP machine.

Not having any luck at all on the net finding the information I needed to build a cable, I’ve finally broken down and paid £26.00 (including shipping) to buy one.  I’ve wanted a DC cable mostly so that I could a) go camping without the need to have a tent pitch that was powered (extra cost), and b) be able to power my CPAP should we have a prolonged power outage at home (fairly low risk of this, but a risk none the less).

Click on the image below to see the full sized one.  This is a page from the manual that came with my cable.

Basically, should someone have posted something like:

To make your own Respironics Shielded DC Cord, Part number 1001956, you will need the following:

• 1 x 2.1mm (5.5mm outside) X 15mm Coaxial DC plug
  Such as: Maplin’s Part number HH61R (www.maplin.co.uk)
• 2-3m of suitable wire for a max of 7amp DC (depending on your CPAP model)
• 2-4 Clip on Ferrite suppressors, such as Maplin’s part N89AB
• 1 x 12VDC cigarette plug, suitable for upto 7amp DC

The construction of a DIY Respironics CPAP DC Cable, model number 1001956 is quite simple.  Wire up the cigarette plug to the DC plug that will go to the CPAP, be sure to wire the tip of the cigarette plug (Positive 12V, I suggest a multi-meter to confirm this in your car or battery pack you intend to use) to the centre connector of the 2.1mm DC plug.  Wire the negative to the other remaining connections. 

At both ends of the cable, as close as possible to each of the plugs, leave not much more then 3-4cm of cable “exposed” put a couple of the clip on ferrite RF suppressors.  These are quite important as they will ensure the dc is free of RF (Radio Frequency) or Electromagnetic noise.  These, should they get into the machine, could cause damage.  You can likely get away without them, but frankly for the extra £5 it will cost for these it’s worth saving your £500+ CPAP.

That’s all there is to it.  I really hope people find this useful, for some reason there has been a black hole of info about these cables, and I’m not sure why.

**DISCLAIMER** This information has been provided purely for theoretical and personal information.  I will not, nor can not, be held responsible if you are not competent enough to build this simple cable and end up damaging or destroying your CPAP.  I’m pretty sure in the wonderful lawsuit happy world we  live in it’s also most likely a violation of your warranty to attach a home made DC cable to your CPAP machine.  You have been warned, don’t come crying to me if you blow something up, also, don’t ask me to make one for you.  These are beyond simple to make.

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