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Cad Program for cylindrical shapes. — Parallax Forums

Cad Program for cylindrical shapes.

DgswanerDgswaner Posts: 795
edited 2008-07-06 15:56 in General Discussion
Does anyone know of a CAD, or other modeling program. that can take a cylindrical shape and unwrap it into a flat object?

I have a cylindrical shaped bot which I want to wrap in 1/8" expanded PVC. I have several sensors switches, etc that need to mount through the PVC, it would be nice to build it in 3d, then have the ability to unfold the cylindrical "skin" completely flat so I can cut and drill the expanded PVC from a printed template.

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"A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster

DGSwaner

Comments

  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2008-07-02 10:20
    With CAD, you pretty much get what you pay for. Unless you really are into reprograming the software to do what you want. AutoCAD seems to remain at the top of the list.

    The real question is do you want to pay or do you want free software?

    If this is a simple cylinder, without a lot of complex appendages, I imagine you can get this done fairly easily.

    When it come to CAD, I keep having to ask if I really need to do this with a computer or can I simply get the task done faster with a sheet of paper and a pencil. There is always the scanner to allow me to store it in digital form.

    One can often use a CAD program to overlay a scaned image and trace it with nice crisp, clean lines. Then just print out the overlay as a presentation image.

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    PLEASE CONSIDER the following:

    Do you want a quickly operational black box solution or the knowledge included therein?······
    ···················· Tropically,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • DgswanerDgswaner Posts: 795
    edited 2008-07-02 12:39
    I was actually hoping for an expensive program with a free trial. That's a good Idea about doing it on paper. I know there is a program out there that can do it, but I might have to settle for more conventional methods.

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    "A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster

    DGSwaner
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2008-07-02 16:29
    Take a look at Rhino. It has an UnrollSrf command that will do what you want. You can download a fully-functional trial version for free.

    -Phil

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    'Still some PropSTICK Kit bare PCBs left!
  • skylightskylight Posts: 1,915
    edited 2008-07-02 19:15
  • John BondJohn Bond Posts: 369
    edited 2008-07-03 10:00
    Alibra offers a free trial but it has a very steep learning curve...
    http://www.alibre.com/

    It also has a sheet metal design option.

    Good luck

    John Bond

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  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2008-07-04 13:26
    I studied architecture before personal computers existed, and the steep learning curve is still a barrier.

    CAD programs are really useful as front end software for CNC production or really big team design projects. But I still can get more done with a T-square and a triangle if it is a one time project.

    Still, I really love Eagle for circuit boards and schematics. It is definitely solid software for such.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    PLEASE CONSIDER the following:

    Do you want a quickly operational black box solution or the knowledge included therein?······
    ···················· Tropically,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
  • DgswanerDgswaner Posts: 795
    edited 2008-07-06 05:43
    I use autocad on a daily basis, I find it hard not to draw up every thing before I start a project. my intern hooked me up with a copy of Rhino so now I just need to finish the design. thanks for all the input.

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    "A complex design is the sign of an inferior designer." - Jamie Hyneman, Myth Buster

    DGSwaner
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2008-07-06 15:56
    Thanks, I'll take a look at Rhino.

    There just tends to be a lot of professional software that has a huge learning curve before you get productive. People tend to consider it first because it is so powerful.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    PLEASE CONSIDER the following:

    Do you want a quickly operational black box solution or the knowledge included therein?······
    ···················· Tropically,····· G. Herzog [noparse][[/noparse]·黃鶴 ]·in Taiwan
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