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A site for a Hobbyologist's personal projects and information, broadcasting to the world.

Power Distribution board

Back in March 2006, I went to run the PC for something, and realised that it would be really handy to have a power distribution board. This would allow me to quickly unplug all the different modules.

This is what I came up with. It's still not built, as I will make the PIXAXE-28 controller board at the same time, since this one is pretty small.

Here is the schematic diagram of the board:

 

Here is the PCB board layout:

Re-Mapping my GPS data

Well, it's been a while, but the SWASC wheels (propeller?) are still turning.

This afternoon I have been discovering how to use a Freeware GIS mapping program called MapWindows. At the moment, it pretty well does all that I need a GIS program to do.

MapWindows screenshot

MapWindows screenshot

MapWindows in action

Hey, the site has been upgraded to Drupal 4.7!

I was running Drupal 4.6.x.  Upgrading took a while to work through the process, but it wasn't too bad.  Managed to loose all the pictures after I had upgraded, because I was playing around in a new module and I wondered 'what would happen if I...'.   Opps, you loose the link to the photo's.  Ok, lets restore from backup and try again  Embarassed

Steering the Mark-I boat

Ok, this has had me stumped for some time, however, writing up the last blog, I had a flash back to the tourist Amity Brig down at Albany. The steering ropes and windlass are all out in the open, so the kids and dad's love to peer over the edge and see how moving the wheel makes the rudder turn.

This is my go at it. Well, at least it's a start.

 

Mark-1 model - motor/propellor assembly

Mark-1 model - motor/propellor assembly

Nothing like a few nails, heat shrink and scrap metal for a test propeller

Pool testing a model of the Mark-I

I was concerned about the how well the Mark-I might turn with the motor mounted midship of the boat, so I decided to build a small 30cm model using 25mm PVC tubing. Out came the scrap pieces of MDF and hot glue gun. I had a CD-ROM drive lying around, so I dismantled it, and extracted the head positioning motor. Part of the case was cut up to became a dodgy looking propeller. The shaft was constructed from two 25mm nails, soldered together.

Mark-I model - motor aft, pool testing

Mark-I model - motor aft, pool testing

With the motor aft, the model now has a turning circle!  However, note that the water is just about up to the top of the hull!  The front is just about up out of the water.

Mark-I model - motor at mid-ships

Mark-I model - motor at mid-ships

Close up of the Motor assembly - mid-ships.

Mark-I model - motor aft

Mark-I model - motor aft
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