An alignment system comprising an alignment jig configured to support and orient a load, the alignment jig comprising: a first base unit configured to carry a first support unit, the first support unit being configured to support the load and to space the first base unit apart from the load; and the first support unit being moveable relative to the first base unit, the first base unit comprising a first base unit actuation system operable to act on the first support unit along a first base unit operational axis X1; and the first support unit comprising a first support unit actuation system operable to act on the load along a first support unit operational axis Y1; wherein the base unit actuation system comprises a first actuator unit spaced apart from a second actuator unit along the base unit operational axis X1, and the first actuator unit is fixed relative to the second actuator unit by a base unit support structure; wherein the support unit actuation system comprises a third actuator unit spaced apart from a fourth actuator unit along the base unit operational axis X1, and the third actuator unit is fixed relative to the fourth actuator unit by a support unit support structure; and the alignment system further comprising: a support track system configured to support the alignment jig, wherein the alignment jig is moveable relative to the support track; the support track system comprises two track members (402A, 402B) spaced apart from one another by a distance D, wherein the base unit (100, 1100) spans the track members (402A, 402B); each track member (402A, 402B) is provided with a track actuation unit (410A, 410B) operable to move the alignment jig relative to the tracks (402A, 402B); a spacer member (430A1, 430A2, 430B1, 430B2) is provided between each track member (402A, 402B) and the alignment jig, the spacer member (430A, 430B) being configured to allow relative movement between the alignment jig and the respective track member (402A, 402B). a first base unit configured to carry a first support unit, the first support unit being configured to support the load and to space the first base unit apart from the load; and the first support unit being moveable relative to the first base unit, the first base unit comprising a first base unit actuation system operable to act on the first support unit along a first base unit operational axis X1; and the first support unit comprising a first support unit actuation system operable to act on the load along a first support unit operational axis Y1; wherein the base unit actuation system comprises a first actuator unit spaced apart from a second actuator unit along the base unit operational axis X1, and the first actuator unit is fixed relative to the second actuator unit by a base unit support structure; wherein the support unit actuation system comprises a third actuator unit spaced apart from a fourth actuator unit along the base unit operational axis X1, and the third actuator unit is fixed relative to the fourth actuator unit by a support unit support structure; and the alignment system further comprising: a support track system configured to support the alignment jig, wherein the alignment jig is moveable relative to the support track; the support track system comprises two track members (402A, 402B) spaced apart from one another by a distance D, wherein the base unit (100, 1100) spans the track members (402A, 402B); each track member (402A, 402B) is provided with a track actuation unit (410A, 410B) operable to move the alignment jig relative to the tracks (402A, 402B); a spacer member (430A1, 430A2, 430B1, 430B2) is provided between each track member (402A, 402B) and the alignment jig, the spacer member (430A, 430B) being configured to allow relative movement between the alignment jig and the respective track member (402A, 402B). a support track system configured to support the alignment jig, wherein the alignment jig is moveable relative to the support track; the support track system comprises two track members (402A, 402B) spaced apart from one another by a distance D, wherein the base unit (100, 1100) spans the track members (402A, 402B); each track member (402A, 402B) is provided with a track actuation unit (410A, 410B) operable to move the alignment jig relative to the tracks (402A, 402B); a spacer member (430A1, 430A2, 430B1, 430B2) is provided between each track member (402A, 402B) and the alignment jig, the spacer member (430A, 430B) being configured to allow relative movement between the alignment jig and the respective track member (402A, 402B).