Idea of DR4B alternative

  1. 6 weeks ago
    Edited 6 weeks ago by iamdavex

    Build a DR4B robot need lots of c-channel, so we were finding new design that use less c-channel, therefore we can build the third robot, then this idea hit my mind some days before. We were wondering whether it works or not.

  2. Dokkaebi

    Jan 6 Deal with it I like chocolate

    Interesting, but you are losing the added height of the middle part of the DR4B that you removed. Also, making something that has to lift so much with chain makes for a significantly less stable lift.

  3. 8232X

    Jan 6 NH 8232X

    It sounds doable. We had a lift made of 2 chain bars mounted together that worked ok, not great, but certainly usable.

  4. Download Complete

    Jan 6 Greater London, UK 7975F

    There was a thread on this a few months ago.

  5. @Download Complete There was a thread on this a few months ago.

    It is very similar idea. The 30 tooth sprocket and 15 tooth tank sprocket is the only pair that is ratio 2:1 I can find.
    I made try, the 30 tooth sprocket is too large.

  6. Download Complete

    Jan 7 Greater London, UK 7975F

    What about 6 and 12 tooth or 12 and 24 tooth sprockets?

  7. 5 weeks ago


    Jan 12 California 2496N

    Interesting idea, however I would be concerned about gears slipping... which is why a dr4b is used more often. It a), has a little more height than this, b) has a lower chance of slipping, and c), I can't think of a way to tension this. However, you can try as I have not seen something like this before.


or Sign Up to reply!