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Ergo-Man

AlexPittAlexPitt Member Posts: 22 ✭✭
edited May 2020 in General
Hi,

Thought I'd share this personal project with the Onshape Community.  I wanted an realistic ergonomic figure that I could drop into architectural projects. Probably spent far too long on it but it's fun and has been taking my mind off things during the lock-down!

Created almost from scratch in OS. I say "almost" as the head was modelled refering to a downloaded mesh (also from OS public docs)  - and there's various reference images from the web.

He's very flexible -  too much so in some respects as he can twist into impossible postions! And more joint mobility is needed in other areas (I don't think he can put his hand behind his head - hope to fix that later.)

It's a messy work in progress which I'll tidy up once I've fixed the following ...

- A movable right arm
- Some fingers 
- More preset poses (with configured grouping to lock down the postion)
- Maybe a smart outfit for dinner; he's not really dressed appropriately for my professional projects!

Maybe you'll find it useful and fun too!

Any feedback/suggestions welcome!

Alex
____________

https://cad.onshape.com/documents/bd0a5b1deae46d5b7bb04af9/w/f9e2293557f5d8a1a15b76fc/e/de9d4084a9bec8277eb82a0d






Comments

  • romeograhamromeograham Member Posts: 656 PRO
    Nicely done!

    Next challenge - configurations for different body sizes: 5th - 95th percentile man/woman, with some "typical" poses for working / interacting with equipment, seating, moving through space.

    Particular care on the dimensions of the head / face for designers working on eyewear, helmets, etc.  Maybe a no-hair configuration for that.

    A real human factors resource would be very useful in Onshape!

  • john_mcclaryjohn_mcclary Member, Developers Posts: 3,890 PRO
    edited May 2020
    Need to stamp a white    On   logo on his chest.
    All i hear when i see him is 'Onshape Mann'  (trojan man)

    Maybe it's the color of his suit and the super hero poses... 
  • AlexPittAlexPitt Member Posts: 22 ✭✭
    @john_mcclary Haha I had to google "Trojan man"!  One day maybe there'll be a curly-haired bearded version in gold lame.
  • john_mcclaryjohn_mcclary Member, Developers Posts: 3,890 PRO
    you lost me at curly hair... apparently the rebranded Trojan man.. 

    I was thinking more like this: https://www.youtube.com/watch?v=RWB62nd7VMs
  • AlexPittAlexPitt Member Posts: 22 ✭✭
    @romeograham Thanks, yes as well as fingers, office attire and improved mobility, I'd like to add more typical poses as you describe. Size configurability will be an interesting challenge. He's on the larger side, probably around 90th percentile.
  • romeograhamromeograham Member Posts: 656 PRO
    @AlexPitt You certainly have enough detail in your construction geometry that can be used for configured dimensions (to get different percentiles)...I guess the challenge will be setting up constraints, so you can explicitly configure / define the smallest number of dimensions possible.

    Great work so far!
  • john_mcclaryjohn_mcclary Member, Developers Posts: 3,890 PRO
    Very nice
  • john_mcclaryjohn_mcclary Member, Developers Posts: 3,890 PRO
    Can you give ergo-man big hair and a metallica shirt?

    I'd like to replace this old dude  :p


  • brian_bradybrian_brady Member, Developers Posts: 505 EDU
    Needs a "girth" parameter for those of us past their prime. 
  • Evan_ReeseEvan_Reese Member Posts: 2,060 PRO
    @AlexPitt
    what a madman! this is cool, and actually pretty handy and hard to find when you need it. I assume that's what inspired it of course.
    Evan Reese / Principal and Industrial Designer with Ovyl
    Website: ovyl.io
  • brucebartlettbrucebartlett Member, OS Professional, Mentor, User Group Leader Posts: 2,137 PRO


    Nice work!  Is there any reason why you used Named positions rather than Configurations for the assembly positions?  I am thinking it would be more useful to drop into other people's assys if it had positions and configurations.  Also the only way I could see the Positions was make a copy.
    Engineer ı Product Designer ı Onshape Consulting Partner
    Twitter: @onshapetricks  & @babart1977   
  • AlexPittAlexPitt Member Posts: 22 ✭✭
    edited May 2020
    @john_mcclary Maybe I could muster a latter-day James Hetfield hair-do. Nice guitar there! Don't know about a mullet but he'll at least need some fingers to play that Strat.
  • AlexPittAlexPitt Member Posts: 22 ✭✭
    @brian_brady Yes! Something like this... https://www.bodyvisualizer.com/male.html

    Though no idea how to do that in Onshape!

  • AlexPittAlexPitt Member Posts: 22 ✭✭
    edited May 2020
    @Evan_Reese. Thanks. Handy yes; but even handier with hands!



    (No offence intended here folks! This is just the stage I'm at.)
  • AlexPittAlexPitt Member Posts: 22 ✭✭
    @brucebartlett Thanks!  I've used named positions because they are nice and quick to work with. Once the revolute limits on joints are set with realistic values, the limbs can free-dragged into position and a "snapshot" taken by creating a new Named Position.
    Thanks to a recent OS update, these named postions can now be updated. Simply tweak the pose and hit "update". 

    @TimRice at Onshape support has also recommended that I use configured poses. After a brief attempt I couldn't find an easy way to do it.  Will explore further but focused on the hands right now.

    Tim also suggested a checkbox to "group all parts"  which is there now (hopefully I've done this in the right way; I'm not sure.) 

    Any workflow suggestions are welcome on configuring the poses. Maybe there's an improvement request here: Configurable Named Positions!
  • Evan_ReeseEvan_Reese Member Posts: 2,060 PRO
    I did something similar for a project once and did configure it. I downloaded this model from GrabCAD (or something similar). Then I placed mate connectors at the joints in the Part Studio and applied various transformations (including scale for the 5th and 95th percentiles). I only ended up with a seated position, standing, and striding so it didn't get too complex. It worked well and was very helpful, but one risk of configuring is potential for rebuild time every time you want to move him, whereas named positions shouldn't have that issue. I'd share it but it was part of a project I transferred to my client afterward so I don't have it anymore. If I did it today I'd retain ownership of it in my own document to use as an internal resource. I'm excited to see where you land with this.
    Evan Reese / Principal and Industrial Designer with Ovyl
    Website: ovyl.io
  • brucebartlettbrucebartlett Member, OS Professional, Mentor, User Group Leader Posts: 2,137 PRO
    AlexPitt said:
    @brucebartlett Thanks!  I've used named positions because they are nice and quick to work with. Once the revolute limits on joints are set with realistic values, the limbs can free-dragged into position and a "snapshot" taken by creating a new Named Position.
    Thanks to a recent OS update, these named postions can now be updated. Simply tweak the pose and hit "update". 

    @TimRice at Onshape support has also recommended that I use configured poses. After a brief attempt I couldn't find an easy way to do it.  Will explore further but focused on the hands right now.

    Tim also suggested a checkbox to "group all parts"  which is there now (hopefully I've done this in the right way; I'm not sure.) 

    Any workflow suggestions are welcome on configuring the poses. Maybe there's an improvement request here: Configurable Named Positions!
    Using Named Positions makes sense to be separate from configurations as Onshape has been designed but they have their drawbacks in upstream assemblies. What I have tended to do and seems to be very robust is to create a position configuration and use configured limits on mates to drive positions or default ranges of movement.  Ie. for a revolute mate as the default I'll add the range of movement but for a specific position, I'll set the min and max the same. It's a little more work but maks them it much more usable when added as a sub assy :)
    Engineer ı Product Designer ı Onshape Consulting Partner
    Twitter: @onshapetricks  & @babart1977   
  • AlexPittAlexPitt Member Posts: 22 ✭✭
    @Evan_Reese sounds like a good project. I can see how transformations to get the poses might have taken some time to set up and affect the rebuild times.

    @brucebartlett Thanks, looks like a great technique! Your "Default" config as the free drag model. I'll try it.  
    I noticed that when I select a revolute mate, it's current rotational value pops up.  So hopefully I could work through each pose, transcribing these values into such a table to preserve my existing positions.

    When thinking about the ergonomics, it occured to me that instead of the mannequin, a basic skeleton could be set up with similar revolute joint limits and pose configs. This skeleton would be constructed from simple extrudes, with configured lengths to get the percentiles.
    Then mannequins of various characters could be inserted and their parts grouped to each skeleton bone to get the same movement/pose.
  • nathan_goingsnathan_goings Member Posts: 4
    Looks like the document link is broken.
  • nick_papageorge073nick_papageorge073 Member, csevp Posts: 659 PRO
    Hi, I went to use this today and the main version seems very broken. Version 42 seems to work ok, but "make a copy" only works from main. Would you please revert version 42 to main? Thanks.


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