Why not make it 9’6? Does that interfere too closely with shaft?
And are the motor units the same, except they don’t need to swivel, so could be just on top of the rings?
Well, it ought to be just short of 10’ overall with the door stuff. Besides, I want to give people depth if I can’t give them width.
sorry, where does 10’ come from? The door assy is 1ft deep, plus about 9’6 = 10’6.
Or did you mean the length overall is <10’?
I get 6 3/16" on the current door assembly, measured by the external roof. Of course, there’s more inside, but that is already accounted for by the cylinder.
And it shouldn’t be difficult to change the elevator shaft size - only needs change in a few components at most, surely?
If it is the same as external elevator, it’s a foot. Door 4.5in x2 plus bumper 2 = 11 plus clearance 1 =12"
Uh oh, I should have measured that before. If each door is 2" deep, it should not be much more than 6" deep overall, with maybe 1/8" for clearance to move the doors freely. This needs to be changed then.
Hmm, it was a foot in my old model too. I’m not sure why. I stretched only the cylinder when I expanded the elevator originally. In any case, I don’t see any reason for more than 2" thick doors and bumper/sensor X 3 = 6".
i can easily change that - and repeat on inner elevator. I’d rather go for 7" overall depth - 2" seems a bit mean for elevator doors, and surely you need a bit of clearance between doors and end of footway?
Not if they’re made of steel and only 9" wide. I want to shorten the somewhat excessive gangway/entrance as much as possible. It’s a congestion point.
OK. Shall we pretend the doors are a bit thinner than 2", and bumper 2", so make both inside and outside door assy 6" deep? And inner cylinder 9’6 OA before doors? Total 10’? And take any needed clearances out of door and bumper thickness?
Why do bumpers have to stick out from doors? In UK internal elevators, the sensors are on the edge of the door
I have exactly 10’ in width for the elevator shaft and I don’t want to increase that, so the elevator ought to be and inch or so less than that, pretty close tolerances already.
This threw me at first too, but then I realized that when people look at a typical elevator door, they are really looking at 2 doors - one on the elevator and one in the building that gets triggered by the elevator door to open. The bumper comes in between the two.
Hmmm. I doubt VERY much if you could build such a complex elevator shaft to 1" tolerance. There’ll be that much swing in the suspension, surely? The normal shafts I’ve seen (as a lay person) have plural inches
Since this is going to be largely conceptual and diagrammatic, rather than the final engineering design, why are we arguing about fractions of an inch? Make the elevator 9’ L, the doors 6", and 3" clearance, if you want to keep a 10’ shaft. wouldn’t that do for all practical purposes?
Well, it’s on a track, so there should be very little play at all. Actually, I expect there’ll be less than what the design currently seems to allow. stepper motor elevators, common in construction sites, and in my local supermarket, grab the rail extremely tightly and don’t move even a fraction of an inch.
3" is too much if it comes in the front. Someone’s heel could get caught in there. There’s less than an inch and all elevators I’ve seen and besides, it’s wasted space otherwise. The elevator can’t move laterally and should not need more than an inch and a half at the very most, 3/4 of an inch on both ends.
Possibly true, but can’t we keep the measurements simple round numbers please? Extend the footplate a bit? Put the clearance at the back? And the track is 5’ away from the centre of the elevator, and not perfectly rigid suspension
At this point, my vote would be for cylinder 9’, doors between 6 and 9, and clearance taken all at the back, for diagrammatic purposes. Or cylinder 9’3