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CAPTIN_CAPSLOCK 11-01-2013 18:53
What are the competition pyramid dimensions?
 
There are several discrepancies between the pyramid designs given to the FIRST Teams and the actual competiton pyramids. I would like to know what the competition pyramids dimensions are, so that my team can build a pyramid that will be beneficial for practice.

ehochstein 11-01-2013 18:55
Re: What are the competition pyramid dimensions?
 
Q. There seems to be discrepancy between the Autodesk CAD model and drawings of the pyramid (pulled from the game arena file). Specifically, the drawings show that the rungs (1,2,3) are all 30” apart in the vertical, and at a consistent 68 degrees from horizontal. The CAD model shows that the first two rungs (1,2) are also 30” apart in the vertical, and 68 degrees from horizontal, but the inconsistency is in the third rung. The third rung is depicted higher than 30” - not at the joint of the 68 degree angled bar and the vertical section of the pyramid - but several inches above on the vertical bar. This changes the angle and climbing plans. Has anyone else seen this, or does anyone have a concrete source that we can trust to design around? Thanks –


A. Per Section 2.1, the FIELD drawings published by FIRST are the official source for all dimensions.
Published by GDC

CAPTIN_CAPSLOCK 11-01-2013 18:57
Re: What are the competition pyramid dimensions?
 
Quote:
Originally Posted by Wiifi (Post 1213269)
Q. There seems to be discrepancy between the Autodesk CAD model and drawings of the pyramid (pulled from the game arena file). Specifically, the drawings show that the rungs (1,2,3) are all 30” apart in the vertical, and at a consistent 68 degrees from horizontal. The CAD model shows that the first two rungs (1,2) are also 30” apart in the vertical, and 68 degrees from horizontal, but the inconsistency is in the third rung. The third rung is depicted higher than 30” - not at the joint of the 68 degree angled bar and the vertical section of the pyramid - but several inches above on the vertical bar. This changes the angle and climbing plans. Has anyone else seen this, or does anyone have a concrete source that we can trust to design around? Thanks –


A. Per Section 2.1, the FIELD drawings published by FIRST are the official source for all dimensions.
Published by GDC
Thank you.

CAPTIN_CAPSLOCK 11-01-2013 19:00
Re: What are the competition pyramid dimensions?
 
Quote:
Originally Posted by Wiifi (Post 1213269)
Q. There seems to be discrepancy between the Autodesk CAD model and drawings of the pyramid (pulled from the game arena file). Specifically, the drawings show that the rungs (1,2,3) are all 30” apart in the vertical, and at a consistent 68 degrees from horizontal. The CAD model shows that the first two rungs (1,2) are also 30” apart in the vertical, and 68 degrees from horizontal, but the inconsistency is in the third rung. The third rung is depicted higher than 30” - not at the joint of the 68 degree angled bar and the vertical section of the pyramid - but several inches above on the vertical bar. This changes the angle and climbing plans. Has anyone else seen this, or does anyone have a concrete source that we can trust to design around? Thanks –


A. Per Section 2.1, the FIELD drawings published by FIRST are the official source for all dimensions.
Published by GDC
Do you know of any other discrepancy? I think it would be a good idea for to compile a list and post it to Chief Delphi so that the other teams have practice fields that will properly prepare them for the competition.

dlavery 14-01-2013 00:02
Re: What are the competition pyramid dimensions?
 
Quote:
Originally Posted by Wiifi (Post 1213269)
Q. There seems to be discrepancy between the Autodesk CAD model and drawings of the pyramid (pulled from the game arena file). Specifically, the drawings show that the rungs (1,2,3) are all 30” apart in the vertical, and at a consistent 68 degrees from horizontal. The CAD model shows that the first two rungs (1,2) are also 30” apart in the vertical, and 68 degrees from horizontal, but the inconsistency is in the third rung. The third rung is depicted higher than 30” - not at the joint of the 68 degree angled bar and the vertical section of the pyramid - but several inches above on the vertical bar. This changes the angle and climbing plans. Has anyone else seen this, or does anyone have a concrete source that we can trust to design around? Thanks –


A. Per Section 2.1, the FIELD drawings published by FIRST are the official source for all dimensions.
Published by GDC
The Autodesk model is incorrect. FIRST has been made aware of this, along with the fact that there is no declarative statement to indicate that the models are in error (particularly important since the models are linked to from the FIRST team resources pages, lending an impression of credibility). Teams should not be using the models to design against until corrections are made. Hopefully, this will be done soon.

-dave


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