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  1. funtech

    How to make aluminum surface finish more scratch resistant?

    They used 6061 aluminum. I wonder if using a harder aluminum alloy would also help? On balance, I think a thicker anodize is probably the best option.
  2. funtech

    How to make aluminum surface finish more scratch resistant?

    In a product I'm developing, the housing is to be made of aluminum. For the prototype, I had them sandblast and anodize it. While it looks beautiful (like the back of a Iphone), the surface is very easy to scratch. I thought anodizing is supposed to make it more scratch resistant. Then again...
  3. funtech

    what is the best type of voltage regulation for my application?

    anything under half a second, or is "instantaneous" by human sensitivity standard.
  4. funtech

    what is the best type of voltage regulation for my application?

    I need a voltage regulator to send a consistent 4.2 voltage to the load, even as the battery voltage drops (from 4.2 V to 3.7 V) as it get discharged. The load resistance can vary from 0.5 Ohm to 1.5 Ohm. There is a mechanical switch between the battery and voltage regulator, which the user...
  5. funtech

    aluminum oxide and connectivity question.

    I'm designing an electrical device now, and I need to ensure good connectivity/conductivity. The housing of my device is made of aluminum, and it also acts as the "ground." An automotive fuse (those plug type) is to be connected to this housing. My current design has a small notch in the...
  6. funtech

    can a plastic container of this shape be manufactured?

    Tygerdawg, 1) The container holds roughly 5ml of fluid, with a diameter of 20mm and height of 25mm roughly. It's small part. 2. I want to use PE or LDPE for material 3. Wall thickness for the bottle should be 1mm roughly. I can accept a lower thickness for the nipples if they can blow mold it...
  7. funtech

    can a plastic container of this shape be manufactured?

    Hi, I will talk to a rotational moulder ASAP. In the meantime, I'm interested in making a prototype first before investing in an actual production mold. For production, it seems like rotational molding is the way to go. But if I want to build a couple of prototypes first (to test the concept)...
  8. funtech

    can a plastic container of this shape be manufactured?

    Thanks for the help guys. So in conclusion. The part can most likely be made with rotational molding, though it might be expensive. (I'm not too concerned with tolerances). With blow molding, it's hard to get a decent wall thickness for the nipples, so it will most likely not work.
  9. funtech

    can a plastic container of this shape be manufactured?

    Hi, thanks for the reply. I will try to absorb what you've said. here is the picture: http://s4.postimg.org/f8k9n91l7/bottle1.jpg If you can't see it, then try here: https://www.flickr.com/photos/124719011@N02/14012731067/...
  10. funtech

    can a plastic container of this shape be manufactured?

    Hi, I'm not well versed in blow molding. I need to make a container in the shape of the following pictures. Essentially, it's just a regular bottle, but with two openings (protrusions) on the side, for connecting to tubes. Can it even be manufactured? How can the protrusions on the side be...

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