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ptc-42854291-Visitor
1-Visitor
October 19, 2011
Question

Request Tetrix Bevel Gear in Pro/E

  • October 19, 2011
  • 2 replies
  • 6843 views

I am wondering when the Tetrix Bevel Gears will be available for download. When that happens, will the 2012 KOP be updated and noted revised, or where do we check for the additional content?

We're using these in our robot this year, and were hoping to have them

Thanks very much,

    2 replies

    J
    JoshH1-Visitor
    1-Visitor
    October 19, 2011

    I'm not affiliated with PTC, but my bet is that you won't see models of these gears in the PTC KOP if they are not in the physical FIRST KOP for 2012.

    If you happen to find specs on this gear (# of teath, pitch diameter, bore, etc.), I might try to find some time to model it.

    But...as a mentor, I would encourage your team to try modeling one. This is a fantastic start...http://www.box.net/shared/ahhcczagcg

    Realistically, consider the use-case of your gear in the actual model. What does it have to do? Does the proper adendum and dedendum have to be in there? Is involute toothform required? (If you're creating an injected molded part off your model, you do need all this and more).

    P.S.,

    please share the model with the group if you get it. If you have problems, please share that as well.

    Good Luck!!

    P
    ptc-42854291-VisitorAuthor
    1-Visitor
    October 19, 2011

    Thanks Joshua, Our team is pretty novice with this type of CAD. It would be a good experience, but I doubt we could make something that had the quality that the community would find acceptable. Then a professional-grade model might come out the next day because I know that PTC was given the actual part by the manufacturer and had some level of interest in modeling it. It's an issue of priority for such as small team we have.

    That article is really interesting. This is the part: http://www.legoeducation.us/eng/product/tetrix_bevel_gear_delrin_bearings_2_pack/2302

    If/when we come across it, we'll post a link here.

    Thanks,

    J
    JoshH1-Visitor
    1-Visitor
    October 19, 2011

    Hi Ken,

    I appreciate your concern over the quality of models, but I also encourage teams to use this forum for learning and sharing. At this link (Bevel Gear), you will find something that I put together that might represent your bevel gear. Of course, you'll probably want to take a pair of calipers and take some simple measurements to get the general size correct. The primary concern with gears is that you get the center distances correct.

    On review of the original link I posted (http://www.box.net/shared/ahhcczagcg), that is really a very detailed and accurate representation of a gear for something like casting or injection molding. I wouldn't really suggest a student attempt this, but then again, I've run across students that will pick this thing up and run with it.

    I hope this helps and I'm really happy to see you on the forums. It would be great to see the rest of your team here as well.

    A
    Anonymous
    October 19, 2011

    Gentlemen,

    Sorry for the late response on this. If someone has a drawing, specs or 3D model of the gear, I would be happy to create it in Creo. Our group has some of the FIRST models but we do not have a CAD or even physical copy of this part to work from.

    Regards,

    Adam

    J
    JoshH1-Visitor
    1-Visitor
    October 19, 2011

    Thanks Adam.

    I'll post a link on this thread if I have any updates on this gear.

    (by the way...also testing to see how many notifications this creates. I got four notifications for the last couple of responses.)

    Josh

    P
    ptc-42854291-VisitorAuthor
    1-Visitor
    October 19, 2011

    I got multiple updates, too. I also generated multiple updates last time because I kept getting a message saying that there was an error and it couldn't post my reply. I kept trying to submit it, and kept getting an error. However, when I went to the thread each submission was there. I simply deleted all the redundant replies I had generated.

    Ken

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