NTLY CONSTRUCTING A NEW HO SCAL LAYOUT AND WOULD LIKE TO INCLUDE A CROSSOVER FROM ON TRACK TO ANOTHER USING ATLAS CODE #100 #6 SWITCHES. CAN ANYONE TELL ME WHAT ATLAS CROSSING WOULD BE USED TO CONNECT THE FOUR SWITCHES . THANKS.
You don’t need a crossing for a double or “universal” crossover. You can just use the four switches.
If you absolutely have to overlap the crossovers to for a “scissors” crossover, I believe the 12 1/2 degree crossing will work, but you’ll either thave to widen your track centers over 2 inches or trim the switches/crossing to fit the diamond between the switches.
Scissors crossovers are very rare. Most sets of crossovers on the prototypes are the univeral crossover type, a left hand crossover followed by a right hand crossover (or vice versa).
Use 2 LH and 2 RH #6 switches, a 19º crossing and add 2" sections between the straight through tracks. This gives you 3" track centers.
Or buy a premade double slip which is in the price range of 4 swithces, 4 machines, a crossover, and the track and wire. It’s what you are making plus it looks cooler than doing it with snap switches. FRED.
If you want to make this double crossover take up less room lengthwise, you can use Peco medium turnouts, which are equivalent to Atlas #6 but shorter, and a Peco crossover. This could save you about 4 inches or more in required length. Peco turnouts cost more than Atlas, but are made better. Peco also allow your tracks to be closer together.