Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: target panel mounting question

  1. #1
    Join Date
    May 2010
    Location
    Princeton University
    Posts
    356
    Rep Power
    44

    target panel mounting question

    right now im finallizing the turret design i will be sending to shapeways, and i just need something clarified. i will essentially have all of my panels mounted to my hopper, which will extend directly above my hopup. the gearbox would extend well behind the back panel. would this be legal, or would i need to place the back panel behind the gearbox somehow?

    sorry if this should have gone in another thread. couldnt find one. :P

  2. #2

    Re: target panel mounting question

    From what I understand:

    If the gearbox acts as a "shield" for the panels, then that's not OK. If the gearbox is sufficiently below the panel such that there's typically a clear line of fire, then I think you're OK.

  3. #3
    Join Date
    May 2010
    Location
    Princeton University
    Posts
    356
    Rep Power
    44

    Re: target panel mounting question

    Its directly below it and extends several inches behind. Unless the other bot is below it and/or I tilt my turret te right way, the shielding wont be all that much. I'll try to minimize it though.

  4. #4
    Join Date
    Jun 2009
    Location
    Wisconsin
    Posts
    369
    Images
    192
    Rep Power
    64

    Re: target panel mounting question

    It would be best to post a picture or drawing of what you are describing. If you have any doubts you want to have it cleared up now.

  5. #5
    Join Date
    May 2010
    Location
    Princeton University
    Posts
    356
    Rep Power
    44

    Re: target panel mounting question

    Ended up having to scrap that design a couple weeks ago, and I haven't had time until now to redesign. I am thinking of mounting the turret inside a bracket to lower the torque the tilt servo by centering the COG. Sort of like this image:

    Would I be allowed to mount the side panels on the outside bracket and the front/back panels on the turret itself?

  6. #6
    Join Date
    Jun 2011
    Location
    USA
    Posts
    547
    Images
    107
    Rep Power
    49

    Re: target panel mounting question

    You might have an easier time with turret design by doing a four-bar linkage approach, e.g. illustrated for Numa in this post.

  7. #7
    Join Date
    May 2010
    Location
    Princeton University
    Posts
    356
    Rep Power
    44

    Re: target panel mounting question

    Hmm. I am probably going to end up with a relatively heavy turret. Would that give me enough torque? How could I calculate that?

  8. #8
    Join Date
    Jun 2011
    Location
    USA
    Posts
    547
    Images
    107
    Rep Power
    49

    Re: target panel mounting question

    Hand calculations of the statics would give you that sort of info. Basically you need to know the CoG and weight of the turret, and position things such that (horizontally) the CoG is closer to the non-actuated pivot point (e.g. the left point in that thread's image). I did not bother doing these calculations though, and had no problems with an AX-12 servo. In my case the gearing inside the servos provides almost enough resistance that the turret will hold position unpowered... so the load on the servo should be minimal.

  9. #9
    Join Date
    May 2010
    Location
    Princeton University
    Posts
    356
    Rep Power
    44

    Re: target panel mounting question

    Good to know. My current engineering knowledge is limited to high school and tinkering, but I'll give the calculations a try. Thanks for the rapid responses.

  10. #10
    Join Date
    May 2010
    Location
    Princeton University
    Posts
    356
    Rep Power
    44

    Re: target panel mounting question

    Center the mass over the pivot when it is aimed flat you mean?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 2012 MWScore FSR Target Panel Build Tutorial & Info
    By DresnerRobotics in forum Mech Warfare
    Replies: 15
    Last Post: 04-23-2013, 10:59 AM
  2. Target panel mounting frames
    By CogswellCogs in forum Mech Warfare
    Replies: 13
    Last Post: 12-25-2012, 10:44 PM
  3. Mini RoboController /Target Panel Setup
    By elaughlin in forum Mech Warfare
    Replies: 10
    Last Post: 12-12-2010, 10:30 PM
  4. Target Plate Question
    By webgeek in forum Mech Warfare
    Replies: 3
    Last Post: 01-12-2010, 08:54 PM
  5. Control Panel for PC / Xbee
    By Robot Dude in forum Mech Warfare
    Replies: 11
    Last Post: 09-28-2009, 07:50 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •