Moving material during laser fabrication

A computer numerically controlled machine comprising:

• a head inside an interior space of the computer numerically controlled machine, the head capable of delivering electromagnetic energy;
• at least one camera present inside the interior space;
• and
• a controller configured to perform operations comprising:
• causing the head to deliver a first electromagnetic energy sufficient to cause a first change in a material at least partially contained within the interior space;
• commanding the at least one camera to image a feature of the material to update a position of the material, the feature excluding one or more markings that are predesignated to be recognized as registration patterns;
• and
• causing alignment of the computer numerically controlled machine to deliver a second electromagnetic energy sufficient to cause a second change in the material, the computer numerically controlled machine being aligned based at least on the feature such that the second change is positioned on the material consistent with the first change and with an intended final appearance of the material.

A computer readable medium comprising a non-transitory machine-readable medium storing instructions that, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:

• delivering, via a computer numerically controlled machine, a first electromagnetic energy sufficient to cause a first change in a material at least partially contained within an interior space of the computer numerically controlled machine;
• imaging a feature of the material using at least one camera present inside the interior space to update a position of the material, the feature excluding one or more markings that are predesignated to be recognized as registration patterns;
• and
• aligning, based at least on the feature, the computer numerically controlled machine to deliver a second electromagnetic energy sufficient to cause a second change in the material such that the second change is positioned on the material consistent with the first change and with an intended final appearance of the material.