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grendel

Tech Team
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Everything posted by grendel

  1. I would imagine its the security issue, knowing how people can reprogram the chips in 3D printer cartridges, with a simple device made up from a small computer and a set of contacts, I would imagine that they could be worried that the cards can be reprogrammed at home so to speak, by computer hackers, who would then get free electricity and destroy the revenue stream from the electricity posts, I would imagine that the cards should have no visible contacts, and be programmed wirelessly, which may mean that the BA will buy them in pre programmed from the manufacturer, and thus there will be no facility to re-program them available.
  2. my current workbench for the models is just the kitchen table, how much more micro can you get than that?
  3. fortunately for the models - the tools are smaller, that said I do have a full size and a smaller table saw, now I just need to clear space in the conservatory to make half of it my workshop.
  4. Basically, if you can draw the part you want in 3D you can print it, I am fortunate in that I am a CAD draughtsman, so have quite an edge on most people doing 3D printing, who have to learn how to use CAD, that bit I find quite easy, I also bought a ready built 3D printer, this takes the guesswork out of the printing part of the job.
  5. well not having a boat, I have a boot full of tools in the car, recently I changed a suspension control arm at work in the car park - to get the car through its mot. the only extra tool I took in was my trolley jack.
  6. So tonight was gluing another plank into position, the fenders have been turned around, and the other ends have now been dipped. the anchor winch was a bit stiff at first, but after a bit of fettling is now running quite sweetly, next to see if it will lift the equivalent weight of a scale mudweight.
  7. I think if you look upon the cards as tokens, the argument that an alternate funding stream is necessary goes out of the window, as the way I read the document its the cost of the electricity plus an apportioned standing charge, which addition of the cost of the disposable token and repair and replacement would be seen as reasonable as there is only one way of recovering the costs- ie via the token. It would possibly be an idea to query offgen about this, but I reckon the BA must have already had similar discussions in the past re- the previous posts, plus surely the manufacturers would have also only built within the bounds of the current legislation.
  8. An Honest answer at least. when you consider that camp sites can charge£5 - £6 per night for an electricity hook up (unmetered supply) it brings it into proportion, at least you dont pay those rates. As for the cost of getting the electricity to the site, the cable itself is quite expensive, but the trenching to get it to where its needed is exorbitant, one of our contractors can easily charge £1000 to dig a hole big enough to connect a cable to the main cable.
  9. thats only half of them, the rest still need painting white
  10. meanwhile one blue end has been added to the fenders, now hung up to drip and dry, they were just dipped into the paint pot then hung up.
  11. I have now redesigned the housing, the supports are beefed up wider and thicker, plus I am printing it in a different orientation so the weakness of the laminates isnt across the arms, but now running along them, hopefully this will give me the part I want. just another couple of hours to wait for a new one to print, the good thing is that this is only just over £1 to produce, the new part is more solid too, but still less than £1.50.
  12. well no I didnt, the spacings were imperial, not metric, so I was 0.4mm too tight between the worm and the takeoff, so a redesign and reprint, also the vertical supports need beefing up a bit.
  13. well I have just been outside and brought in the washing - well not exactly the washing, but it was strung up across the greenhouse door, half of the fenders have now been primed and painted white.
  14. Well this afternoon I am multitasking, earlier I was doing some design work, and just now I have steamed and shaped another plank. The design work was to re-design the anchor winch I made a while back, now I have a 3D printer I can do bespoke designs and create my own solutions in a smaller footprint than the one I previously made. I have a small but powerful motor scavanged out of a computer CD drive, its the one that opens and shuts the drawer, round this and with the help of a pack of gears I already had, I designed an anchor winch, this is currently printing, so we will see if I got the gear spacings right.
  15. I bought 3 pairs of formal shoes at the same time, many years back now, they were hand made for me in size 14 for just £40 per pair, took a while to arrive from india though, beautiful craftmanship.
  16. Ok a few more tests done, we are pumping at a rate of 1.5 litres a minute
  17. the fender by comparison is just 2" (50mm) long
  18. Here are some close up pictures of the pump.
  19. well last night I had a search for a centrifugal pump as a bilge pump, I was looking for a 3d print file to save me some time, and I found a couple, one was quite small, designed for a motor from a pc cd drive, and the other was tiny. as I hadnt got a spare cd potor handy, I first tried with the smaller one, this is only about 19mm in diameter (3/4"). So now to test it and see how much water it can pump. this run from a 3.7v camera battery. all that is needed now is a water activated switch and some tubing
  20. tonight we have glued the last plank shaped, and work continues on smoothing the fenders. they are then painted with acetone to slightly melt the plastic and smooth and bond the layers together - ready for painting.
  21. spot on Charlie, there will be some space inside for added flotation if necessary, we had the batteries in on the test float, and the model was still sitting high in the water
  22. I have an industrial vacuum for when I am using the big table saw, or the small one, its amazing how quickly the vacuum fills up with sawdust, it was purchased at a boot fair for just a couple of quid, another £8 for a new filter and its doing sterling service - that reminds me I should hook it up to my belt sander while sanding too. (especially when I have it clamped to the bench)
  23. now lets be realistic, how many people are going to spot if a splice is tapered at the size they will be, maybe I will just use a blob of glue.
  24. how did we progress to whips and chains so quickly Cant trust you lot any further than we can throw a mudweight.
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