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Making a Rope extendable

acharyapolinaacharyapolina Posts: 726
edited March 2022 in Technical Help (nuts n bolts)

So currently I am trying to create a helicopter medical bed for a project I am working on. I want the medbed cord to be able to be scaled in the z axes up and down to get longer or shorter as needed, so if the helicopter is lowering the bed the rope extends. However everytime I try to extend the rope, my MedBed also stretches because it is attached to the Extendable piece. 

So I have 3 objects. 

The Top Ring

The middle piece that should be extendable

the MedBed part.

So the Medbed is attached to the middle part that is attached to the Ring.

Any Ideas on how to solve this problem. Any help would be wonderful. thank you so much.

 

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Post edited by acharyapolina on

Comments

  • TogireTogire Posts: 414

    You can try some tricks with transparency.

    If surfaces are not defined, use the geometry editor to define a surface for the upper rope and one for for the lower part.

    Then duplicate the object and make in one of them the upper rope invisible and in the second the rest invisible. Then you can modify the rope without any impact on the other part. If you also change the object origin at the proper position, no realignment will be required.

    You can also export the visible part as an obj and reassemble them, but playing on the transparency shpuld be enough.

  • acharyapolinaacharyapolina Posts: 726

    Good idea, but I really want to have the rope be extendable if possible. 

  • felisfelis Posts: 4,297

    My suggesttion is to make your top middle piece a figure instead of a prop. Then give it 2 bone (one might be enough?) and then parent the next part to the lower bone, and when need to extend scale up the higher bone.

  • WendyLuvsCatzWendyLuvsCatz Posts: 38,192
    edited March 2022

    the rope shouldn't really extend though, (like a bungee cord) it should be on a pulley and unroll from a reel or something 

    just saying 

    that might actually be easier to do too

    a winch

    https://www.breeze-eastern.com/hs-29700/

    Post edited by WendyLuvsCatz on
  • acharyapolinaacharyapolina Posts: 726

    Great Ideas. Thank you all. I will try them out. :)

  • acharyapolinaacharyapolina Posts: 726

    WendyLuvsCatz said:

    the rope shouldn't really extend though, (like a bungee cord) it should be on a pulley and unroll from a reel or something 

    just saying 

    that might actually be easier to do too

    a winch

    https://www.breeze-eastern.com/hs-29700/

    I agree with you. but implementing that in my opinion would be much more complicated.  I will probably put in a reel like you said, but will have the rope extendable.

  • RL_MediaRL_Media Posts: 339

    One trick I found when putting together my drawbridge product, is to make enough geometry so it can stretch far enough to fully extend, just make sure that the part that is stretching/contracting is hidden. Especially if you will be using like a rope texture, it will stretch/compress the texture. 

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