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I am an Autodesk ArtCAM Developer. I built my own wooden sailing boat, MilliBee, launching her in 2006. She has a small cabin for long weekends on rivers, canals or the coast. I often sail in and around the Solent, a tidal area of water between the UK South coast and the Isle of Wight.
  • paul.hadley commented on thediylife's instructable Simple Arduino Home Energy Meter3 weeks ago
    Simple Arduino Home Energy Meter

    Very interesting. Its a simple but useful project. For some time I wanted to measure the import/export energy from my 2.4Kwp solar panel system, but true import/export meters are not available,It will need 3 sensors: A current from the utility company, B current from the solar invertor into the fuse board, C current into the house from the fuse board.If B >C the solar panels are generating more than the house uses; so A is the export power to the grid.. This is good.If B<C the house is using some power from the grid and some from the solar panels; so A is import power from the grid.The display could show the solar power and house power. Then Import or Export power and a red/yellow led; red means taking power from grid, yellow means solar power is feeding the grid. The yellow led m...see more »Very interesting. Its a simple but useful project. For some time I wanted to measure the import/export energy from my 2.4Kwp solar panel system, but true import/export meters are not available,It will need 3 sensors: A current from the utility company, B current from the solar invertor into the fuse board, C current into the house from the fuse board.If B >C the solar panels are generating more than the house uses; so A is the export power to the grid.. This is good.If B<C the house is using some power from the grid and some from the solar panels; so A is import power from the grid.The display could show the solar power and house power. Then Import or Export power and a red/yellow led; red means taking power from grid, yellow means solar power is feeding the grid. The yellow led means its a sunny, happy day and we are exporting power to the grid! It also means its a good time to charge batteries or run the washing machine/dish washer to consume some of the export power.-Paul

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  • Medium sized DIY - CNC 20" x 30" work area

    There is Autodesk ArtCAM Free available for download.A free version of ArtCAM for vector editing, 2D profiling and drilling, which is perfect for a beginner/hobbyist.You also have an upgrade path to ArtCAM Standard and ArtCAM Premium, if you run a business.Search for "ArtCAM Free"

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