Teach model from CAD¶
Teaching an object model is the most important step when setting up the Pickit Teach engine to detect your object. Make sure that your CAD file matches the object you want to detect.
To teach a CAD model all you have to do is to upload a CAD model and specify its length unit. To do so press Teach from CAD.
Teaching from CAD has the benefit that the full part geometry is contained in a single model. For example, the socket model shown below corresponds to a single CAD upload. In contrast, to teach this model from camera, one would need two models, i.e. two camera captures, one for the top side and one for the bottom side.
Another important benefit is absolute accuracy when defining pick points. If the origin of the CAD file with respect to the part geometry is known, pick points can be positioned by specifying exact offsets with respect to the origin.
Pickit supports stl, obj and ply formats. Most CAD design editors can export CAD into such formats. However, if you do not have such CAD formats, free online converters are available on the Internet.
If you do not know the length unit of your CAD, the simplest is probably to try one (mm being the most common) and trigger a detection with it. You will directly see in the Objects view if it is the correct length unit.