The first Duplo plates and tiles were based on the regular Lego plate/brick ratio
of 3:1 (that is, it takes 3 plates stacked on each other to reach the height
of a single Lego brick).
Somewhere around 1992, these "thin" plates and tiles were abandoned for the "thick"
type, which have a 2:1 ratio. These are what we find in modern Duplo sets.
What prompted the change? It could have been the advent of the 6309 printed tile:
The first Duplo plates and tiles were based on the regular Lego plate/brick ratio
of 3:1 (that is, it takes 3 plates stacked on each other to reach the height
of a single Lego brick).
Somewhere around 1992, these "thin" plates and tiles were abandoned for the "thick"
type, which have a 2:1 ratio. These are what we find in modern Duplo sets.
What prompted the change? It could have been the advent of the 6309 printed tile:
The first Duplo plates and tiles were based on the regular Lego plate/brick ratio
of 3:1 (that is, it takes 3 plates stacked on each other to reach the height
of a single Lego brick).
Somewhere around 1992, these "thin" plates and tiles were abandoned for the "thick"
type, which have a 2:1 ratio. These are what we find in modern Duplo sets.
What prompted the change? It could have been the advent of the 6309 printed tile:
The first Duplo plates and tiles were based on the regular Lego plate/brick ratio
of 3:1 (that is, it takes 3 plates stacked on each other to reach the height
of a single Lego brick).
Somewhere around 1992, these "thin" plates and tiles were abandoned for the "thick"
type, which have a 2:1 ratio. These are what we find in modern Duplo sets.
What prompted the change? It could have been the advent of the 6309 printed tile:
Well, the first train that looked like a train and had tracks to roll on.
There were Duplo connecting cars before 1980. Even without tracks, connected
cars very much spell train to a 2-year-old
Well, the first train that looked like a train and had tracks to roll on.
There were Duplo connecting cars before 1980. Even without tracks, connected
cars very much spell train to a 2-year-old