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  1. mobefive

    Plastic Injection Moulding - Lightweight, Strong Parts

    Ok I am building waterskis and need a cheaper alternative for some more basic models and would like to try moulding them with plastic or a plastic-foam. The main priorities for this are that the finished product is Lightweight and is Strong and Durable as it will take a bit of a beating. I...
  2. mobefive

    How to Put Thread Inserts in a Composite Layup

    Ok that sounds good but infortunately the side that the inserts are going to face is the one covered by the vacuum bag, and vacuum materials. Also how do I get the stud/screw through the four layers of materials whilst they are wet without loosing too much structural strength (in the...
  3. mobefive

    How to Put Thread Inserts in a Composite Layup

    Hello all, I am laying up a ski with a composite sandwich which looks like this: From the core to the top: Expanded PVC core, Aluminium plate with Chopped Strand Glass Matting Underneath the shape of the plate, then a Full layer of CSM over the top of the ski, then a layer of Uni-Directional...
  4. mobefive

    How to shape a 150x150x10mm metal plate?

    I have found a picture of pretty much exactly what I want to create. http://www.burton.com/Burton/gear/products.asp?productID=110 Any Ideas. Cameron www.mobefive.tk
  5. mobefive

    Waterski Cost effective composite with a high strength to weight ratio

    A surfboard is a great example, only a trick ski is smaller, thinner and needs to be way stronger. This is the main concern when choosing a core material/design and layup process. Its a cost vs weight vs strength issue. Stringers are a great idea that I had previously had mentioned to me but...
  6. mobefive

    How to shape a 150x150x10mm metal plate?

    Thanks Ken, I will use 2mm SS Alloy of one of the types you have suggested then. I will cut what I can in a brake press, although with 2mm thick metal would it not be easier to use just a coping saw or a drill press/coping saw for holes then file the metal back?? I would then have to sand it...
  7. mobefive

    How to shape a 150x150x10mm metal plate?

    Ok that is what I thought I might have to do but I dont think I explained it very well. The piece, that I could easily cut off a bar needs to be shaped into a 3D logo and so I was thinking that it may need to be poured into a mould. It would be great if you could tell me which metals would be...
  8. mobefive

    Waterski Cost effective composite with a high strength to weight ratio

    Hello all, I am in the waterski manufacturing business and we are building trick skis. I need some information and advice regarding composites. Today's high-end skis are built using aluminium honeycomb cores and prepeg carbon fibre layup overtop, this is an expensive process. The skis we...
  9. mobefive

    How to shape a 150x150x10mm metal plate?

    Ok here is the breif, I know very little about metals engineering so bear with me. What I am attempting to do is to create a small number of these plates (about 10 to begin with) that will be approximately 150x150x10mm and to be made out of some type of metal that is as light as possible and...

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