How Long Does LEGO® 8 Curved 12V Conducting Rails (751) Take to Build?

A typical builder finishes LEGO® 8 Curved 12V Conducting Rails (set 751, 8 pieces) in about 5 minutes.

PieceTick estimates build time from piece count, part complexity, the set’s age rating, your experience level, and how you sort pieces. Adjust those on this page for an estimate matched to how you build.