Most reported AIS CLASS A destinations

These are the most reported destinations from 51444 ships (MSSI) (AIS Message 5) as pulled from AISHubs data feed. Interestingly major harbours from the People Republic of China  are under represented.  Possibly because of a language barrier.  Overall, over the whole set, the freely to be entered destination field has very varied entries, from obscure entries to nothing or just question marks. The data was cleaned for the most common mistakes, like added spaces or useless punctuation.
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Travel Distances of Clyde Estuary Calmac Ferries

Travel distances of Clyde CalMac Ferries

NameMMSIDistance traveled (km)Daily km traveledYearly km traveledmean daily return crossings
Loch Shira2350532396358.54794.9036934639.8525.10680
Argyle2350525419859.771147.1607653713.686.523083
Bute2350251128482.798126.6089346212.265.612098
Coruisk2350089294393.820 65.5794023936.482.906888
Recorded travel distances Clyde CalMac Ferries from the 29th of September 2017 to the 4th of December 2017. Daily crossings estimates as 22.56 km return Wemyss Bay - Rothesay and 3.78 km Largs - Cumbrae Slip.
https://www.calmac.co.uk/largs-cumbraeslip-cumbrae-ferry-winter-timetable
https://www.calmac.co.uk/wemyss-bay-rothesay-bute-ferry-winter-timetable

By logging to a Mysql table all recorded GPS positions, we see the workload that is put on these RoRo ferries.

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Building a Beautystar/Topdirect CNC DIY Router Engraving Machine PCB Milling Machine CNC Wood Metal Carving Mini Engraving Router PVC

Here we will discuss how to build these inexpensive CNC test/hobby machines which seem to be sold by different companies but look pretty much the same.  I add pictures and add explanations in addition to the assembly instructions found on a USB stick. The Instructions are a bit funny as you will find instructions in both Chinese and badly translated English, overlapped in boxes on pictures. There are also instructions to build a Woodpecker CNC, which seems not to be this product. The instructions are fairly accurate but sometimes the boxes are badly sized so you don’t see all of the text or the part looks different, or is mirrored while you are instructed to watch the orientation.
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