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The Transiting Exoplanet Survey Satellite (TESS) is providing precisetime-series photometry for most star clusters in the solar neighborhood. Usingthe TESS images, we have begun a Cluster Difference Imaging Photometric Survey(CDIPS), in which we are focusing both on stars that are candidate clustermembers, and on stars that show indications of youth. Our aims are to discovergiant transiting planets with known ages, and to provide light curves suitablefor studies in stellar astrophysics. For this work, we made 159,343 lightcurves of candidate young stars, across 596 distinct clusters. Each light curverepresents between 20 and 25 days of observations of a star brighter than$G_{\rm Rp}=16$, with 30-minute sampling. We describe the image subtraction andtime-series analysis techniques we used to create the light curves, which havenoise properties that agree with theoretical expectations. We also comment onthe possible utility of the light curve sample for studies of stellar rotationevolution, and binary eccentricity damping. The light curves, which cover aboutone sixth of the galactic plane, are available as a MAST High Level ScienceProduct at https://doi.org/10.17909/t9-ayd0-k727 .

Cluster Difference Imaging Photometric Survey. I. Light Curves of Stars in Open Clusters from TESS Sectors 6 & 7