Here is a picture of the Borda repeating circle . Cassini had Méchain as his assistant but he took control and made the measurements with the repeating circle while Méchain was given the task of checking the results with older equipment.
Narito ang isang larawan ng Borda paulit-ulit na bilog. Cassini had Méchain bilang kanyang assistant ngunit siya kinuha control at ginawa ang measurements na may paulit-ulit na bilog habang Méchain ay ibinigay ang gawain ng paglagay ng tsek sa mga resulta sa mas lumang mga kagamitan.