Sally Door: Swing Direction

[GeeTwo]

If the Sally Port would be installed so that the hinge is on the right, it would open into the courtyard rather than the neutral zone. That should constitute a field fault. It would also be defeatable with a drive system only.

[paul.dornfeld]

Yes, that is true of a left-hinged door installed backwards, but my question involves the actual construction: is there anything that mandates that the door be constructed as a left-hinged door or might we encounter either sided hinge in the competition?

[Monochron]

Originally Posted by paul.dornfeld

is there anything that mandates that the door be constructed as a left-hinged door or might we encounter either sided hinge in the competition?

Viewing the Sally Port from the direction that it opens into, the hinge must be on the left. This is mandated by the field drawings. It is also mandated by the Game Manual that the Sally Port must open into the Neutral Zone. So combining these two mandates, we get the fact that the hinge must be on the left if viewed from the Neutral Zone. If the above assumptions are correct (and I believe they are), then that is the official word you are looking for.

[TheOtherGuy]

https://firstfrc.blob.core.windows.n...Components.pdf

Page 71 shows assembly.

[paul.dornfeld]

Originally Posted by TheOtherGuy

https://firstfrc.blob.core.windows.n...Components.pdf

Page 71 shows assembly.

Yes, I see what you mean. Thank you.

[GaryVoshol]

Originally Posted by paul.dornfeld

Yes, that is true of a left-hinged door installed backwards, but my question involves the actual construction: is there anything that mandates that the door be constructed as a left-hinged door or might we encounter either sided hinge in the competition?

You mean other than the field construction documents posted on the website here? http://www.firstinspires.org/resourc...nual-qa-system

I haven't felt the need to check, but I'm sure if you peruse them you will find that it shows which side the hinge is on.

[paul.dornfeld]

Originally Posted by GaryVoshol

You mean other than the field construction documents posted on the website here? http://www.firstinspires.org/resourc...nual-qa-system

I haven't felt the need to check, but I'm sure if you peruse them you will find that it shows which side the hinge is on.

That is a great resource. Thank you for pointing it out.

[BoilerMentor]

Originally Posted by GeeTwo

If the Sally Port would be installed so that the hinge is on the right, it would open into the courtyard rather than the neutral zone. That should constitute a field fault. It would also be defeatable with a drive system only.

The way that the outer works base and defense pieces interact it isn't physically possible to install them oriented incorrectly. The defenses are on casters that roll down ramps in the outer works base to seat them in place. The casters are in a trapezoidal pattern on the bottom of the defense. Because the spacing of the casters differs front to back it provides orientation in conjunction with the position of the ramps and slots for the casters in the outer works base.