RoadRunner DNS / OpenDNS
Mumblings of a sometime webdeveloper, occassional potato sculptor, recently-become dad, and just this guy getting along in the world.
Yesterday I put the final piece in place to our solar powered lawn-mowing solution. At the old house, I used the reel-mower - not a terribly onerous task provided it was kept sharp. But at the new house we are on a corner lot, and inheriting our predecessor's love of lawn. We are slowly eating away at it with vegetable and xeric beds... but a lot remains. Too much to feasibly manage with the reel mower - especially if I want to share the task with other members of the family.
So, we bought us a Neuton Electric Mower which has the useful distinction of being powered by a removable 24volt sealed lead-acid rechargable battery. We also bought an extra battery. While they dont supply a solar recharger (it comes with a big-brick mains recharger), eBay (for example) does - I was able to buy a simple 24v recharger package with a solar panel, recharging circuit and leads.
I hooked it all together at the weekend, quickly corrected the polarity (+1 for testing) and plugged it in. Yay, the little charging light on the batter lit up. I secured the PV panel (little one about 6" square) to a bit of wood, and repositioned it a couple times over the course of the day.
I have fingers crossed. My tests showed I was getting close to the same output (in volts) from the PV panel, in almost full sun. But, not quite. I know just a little about battery charging, but enough to be aware that it needs to exceed the rated voltage of the battery to work.
Its raining today, so the results are not yet in. But worst case is that I have to tweak the battery-charging circuit piece of this solution (the component - I'm not proposing to tweak the circuit itself, not yet). Neuton said they have had other customers do the solar recharging thing too. Maybe they or a 3rd party could be persuaded to produce an off-the-shelf solution to put solar-powered moving easily into the hands of the masses. We need one badly here in the south - where sun and lawns are both in abundance.
The mower itself: works pretty well. As you'd expect, its quiet (another plus, you can carry on a conversation while mowing). A full charge gets me around our lawn about twice (very approximately 3500 sq ft). Its powered appropriately, my only reservation is the width of the cut - about 15" - so the whole task takes a little longer that your average gas-hog mower might. But it doesn't leave your nerves on edge, can be carried out in the cool early mornings without waking neighbors, and shared across the whole family. I think its a winner.
Labels: home, sustainable
As if to underline the already bleeding obvious, today my desk clutter hit the point of self-destruction when I exitted my chair and pulled the headphone cord with me. It snapped at the plug. Worse would have been to break the actual jack in the laptop (or maybe drag the laptop off the desk). It wasn't a happy moment though.
I was undaunted. Radio Shack sold me a new plug, I scoffed at the assistant when he apologized that the only one he had required soldering, and set it aside at home for later.
Later, I snipped off the broken plug and explored it a little. There's 3 wires in there - red, orange (uncoated?) and green. It was just possible to determine which had gone where, and the new plug was similar in form. Some fiddly work later, I had all 3 wires hooked into their little holes and ready for soldering. The paint/laquer seemed to be all that was insulting the wires (from each other), and I scraped some of that off. I started to sweat when the solder wouldnt take. The gold plated terminals loved it - the wire didnt. I dont think the result would get me a diploma anywhere, but after some more scuffing it took. Not quite in that nice flowing way where the wire sucks the solder onto it. But good enough.
I screwed the thing back together, and held my breath as I fired up iTunes and plugged the headphones back in. Sods Law (or Murphy's Law in these parts) holds sway always at these moments: If It Can Go Wrong It Will. When did you ever lurch over-confidently into any project not really knowing what the hell you were doing and pull it off first time? Especially when there's expensive equipment at stake. So I was pleasantly surprised when I got audio. My little grin got wider when I listened hard to a cd and discovered no hiss, no crackle or fuzz. A happy moment.
Then and only then did it occur to me to Google. First hit: How to Replace a Headphone Plug. Always RTFM - preferably before - but if its already worked you get the added bonus that it will actually make sense, and maybe pick up a couple of tips for next time.
Labels: home
Labels: website
Today I suffered my first injury by cheese. My left thumb aches and has swollen from the cut I received under the nail. It happened like this:
At lunchtime I discovered the office microwave had been the site of a small explosion - probably featuring lasagna - and the debris had since baked on in a uneven patina of tomato red splotches. Not wanting to be a part of the problem in baking it on further (and being an occasional nice-guy,) I set about cleaning it. With a little soapy water and a few minutes to soak most came right off, but some residue on the glass turntable was more stubborn. I flipped the sponge and leaned hard on the scourer. That was when it struck. A flake of cheese, hardened to a vicious point, dug in deep under my thumbnail and drew blood. I was able to complete my task and heat my bean wraps with a clear conscience, but the damage was done and a small piece of history was made.