The MIMAC (MIcro-tpc MAtrix of Chambers) experiment is a micro-TPC matrix for directional dark matter search. Directional detection is a strategy based on the measurement of the WIMP flux anisotropy due to the solar system motion with respect to the dark matter halo. The main purpose of MIMAC project is the measurement of nuclear recoils energy and their 3D track direction from the WIMP elastic scattering on target nuclei. The first ionization energy and 3D track observations of nuclear recoils produced by the radon progeny recently reported being shown. This measurement shows the capability of the MIMAC detector and opens the possibility to explore the low energy recoil directionality signature. The measurement of the drift velocity from an implementation of the cathode signal is also mentioned.