round houses and turntables

[joefromrandolph]

I am trying to match up a round house with a turntable but it seems, since I am doing it wrong,,lol that the circumferences of both are not the same and thus, do not match up properly. How do you get a round house and turntable with the same circumference.. or radius..

 

[cascaderailroad]

Are you looking for a monster size turntable/roundhouse, or a smaller one, a couple stalls, 30 stalls, or a full circle ... NG ... SG ?

 

[JCitron]

I am trying to match up a round house with a turntable but it seems, since I am doing it wrong,,lol that the circumferences of both are not the same and thus, do not match up properly. How do you get a round house and turntable with the same circumference.. or radius..

You can match up the roundhouse segments, which will snap into place. Andi06 made some and so did others. There are also some full roundhouses and turntables by various creators including Ben Dorsey.

John

 

[bendorsey]

A RH & TT have these criteria (in this order):
1. The diameter of the TT. This goes a long way in determining #2.
2. The angle between tracks radiating from the TT pit. This ultimately determines how many tracks there can be and goes a long way in determining the distance from the rim of the pit to the RH front doors.
3. The width of the RH doors and associated wall. The doors must be a minimum of 11 feet (can be wider and almost always are - I've never seen any with 11 foot wide doors but its theoretically possible). 12 feet is a far better minimum. The doors must have a minimum of 6 inches of wall on both sides (also can be wider and usually is but not by much).
4. 2 and 3 determine the distance between the edge of the pit and the front walls.
5. Length of the stalls. Quite variable but determines how far the rear walls are from the front walls and their width.

1 and 2 are the most important criteria. 2 is limited to about 68 tracks. Not by Gmax or Blender but by the 256 character limit to the angles line in the config file. Periods count so for large numbers of tracks do not use fractional angles - stick to whole numbers. 5 degrees is good, 5.5 degrees is not, 5.55 degrees is terrible.

Making a TT & RH needs a bit of planning ahead.

Ben