Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Can I make a transmission from DUPLO gear (Early Simple Machines Set 9656) to regular-sized gear?
To the best of my knowledge, the gears are not compatible in any way. The teeth on the DUPLO gears appear to be far too large.
One option could be to use one of the included DUPLO pulleys and create a connection to the Technic system that way:
Required, but never shown