Page 14 of 19 FirstFirst ... 4101112131415161718 ... LastLast
Results 131 to 140 of 181

Thread: Section 4 - The Robot: FTC FIRST Face Off Q&A

  1. #131
    Join Date
    Jul 2007
    Posts
    115

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC0801 View Post
    Q: may we use the vex rubber stars?
    A: No. The intake rollers are not in the list of allowed Vex parts.

  2. #132
    Join Date
    Jul 2007
    Posts
    115

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC2961 View Post
    Q: I'm still a bit confused as to what kind of rubber bands are permitted. Clearly any lego rubber bands that came with the kit, and as you've said before, vex #32 rubber bands. Beyond that, can we use ANY old rubber band, or ONLY vex and included lego ones?
    A: #32 rubber bands refer to a standard size. You should be able to get them at almost any office supply store. The only rubber bands allowed are the LEGO rubber bands and standard #32 rubber bands.

  3. #133
    Join Date
    Jul 2007
    Posts
    115

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC0024 View Post
    Q: I worked at a recent FTC Championship as a volunteer, my team was not in attendance at the event. We had a number of teams arrive with designs that used plastic food (or similar) containers for buckets, where they were making the argument that it was just preformed and similar in material to polycarbonate. There was quite a bit of discussion on this issue. It would be best to have a clear answer from the GCD on this issue for future events.

    Is using preformed plastic containers within the limits of the rules on the use of the 12" x 24" polycarbonate if the maximum dimensions are met?
    A: No. Preformed containers are not allowed within the rules for utilizing polycarbonate. If teams wish to utilize polycarbonate materials in their robot, they must perform all the design and fabrication steps themselves.

  4. #134
    Join Date
    Jul 2007
    Posts
    115

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC3037 View Post
    Q: does the aluminum strictly have to be aluminum? Because we used a piece of sheet metal left over from a previous project, and it isn't aluminum. Will we have to rebuild the part? The metal we used is quite a bit heavier that aluminum, so we wouldn't be gaining any advantage from using a different metal.
    A: The current robot construction rules only allow aluminum. It is possible that other materials might be allowed in future seasons, but for FIRST Face Off!, only aluminum is allowed.

  5. #135
    Join Date
    Jul 2007
    Posts
    115

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by team2825 View Post
    Q: where can we purchase polycarbonate plastic that is within the requirements?
    A: Most hardware stores carry polycarbonate sheeting. It is typically in the "glass" section of the store.

  6. #136
    Join Date
    Jul 2007
    Posts
    115

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC2848 View Post
    Q: (<R9> "Parts may NOT be modified as follows: a. Motors --snip-- may NOT be altered from their original state in ANY way.")

    in Q112, you answered the question

    "Would we be allowed to thread the 4 orange circles so that we may screw it in directly?"

    with

    A: Yes, you may tap the orange circles.

    Since the only orange circles that we can think of are the ones on the ends of the NXT motors, can you confirm that with that ruling you are giving this specific exception to <R9a>?
    A: There was a mis-understanding on our side on what the "orange circles" referred to. You have correctly pointed out that <R9a> prohibits modification of motors. Tapping the holes in the LEGO Motors would be a violation of this rule. The original answer was not intended to be an exception.

    To any team that has tapped the holes in their LEGO motors: Do not use the tapped holes and your motors will be treated as "unmodified" for the purposes of inspection.

  7. #137
    Join Date
    Jun 2006
    Posts
    213

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC0055 View Post
    Q: I have a DC motor mounted on an arm with encoder. The cable will not reach to the controll box. Is there an extension available that is allowed to extend the encoder cable? I can not find anything on legoeducational.
    A: We don't know of an extension cable specifically for this encoder, but we believe that any kind of 4 wire PWM extension cable that uses the correct pinouts (1=power; 2=A; 3=Ground; 4=B) should be okay. These would be legal.

  8. #138
    Join Date
    Jun 2006
    Posts
    213

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC2961 View Post
    Q: One of the four small wires on the encoder end of one of our motor shaft encoder wires detached from the plastic housing, and we've been unable to repair it. Would it be legal to splice the original wire into a new connector of the same type, as found here? http://www.shaftencoders.com/product...ca-mic4-w4-nc/
    A: Yes. Make sure your splices are shielded and neat. See also previous question.

  9. #139
    Join Date
    Jun 2006
    Posts
    213

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC2975 View Post
    Q: I am having trouble with the fuses blowing in the 10 cell, 12 V DC NiMH power pack; these are 20 A car fuses folks; they should not be blowing. It seems they do fine for about 3-4 runs, then on recharging, they blow. They do not blow when hooked up to the robot and in play. What is the reason?
    A: We have not heard this happen before. We suggest you contact PITSCO for support.

  10. #140
    Join Date
    Jun 2006
    Posts
    213

    Default Re: Section 4 - The Robot: FTC FIRST Face Off Q&A

    Quote Originally Posted by 2008FTC0801 View Post
    Q1.- Are we allowed to use the green vex plastic bands. And are we allowed to use the vex rubber stars.

    Q2.- For FTC Face-Off what is considered as structural parts, because for me wheels are structural parts? If not, then what is considered as structural parts?
    A1: We are not sure what you mean by the green plastic bands. If you are talking about rubber bands, those are legal (#32 size). If you are talking about the tank treads, gears, or something else, then they are not legal. As for the Intake Rollers (the vex rubber stars), those are not legal.

    A2: For this year's game definitions, wheels are not structural parts. We consider the vex metal pieces (bars, channels, plates, angles, etc) to be the structural pieces.

Page 14 of 19 FirstFirst ... 4101112131415161718 ... LastLast

Thread Information

Users Browsing this Thread

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

Tags for this Thread

Posting Permissions

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