Prepare the source
Use the clearest PDF or image available, including all sheets and section views. Identify units, revision, projection convention, and the target CAD application. If you have DXF or DWG files, ask Adam to check whether the available tools can read their entities; a readable PDF can provide additional reference.Reconstruct in stages
1
Read the drawing
Ask for a feature inventory and a list of dimensions that define each feature. Resolve conflicting or unreadable callouts.
2
Plan the model
Choose a base feature and a sequence of sketches, extrusions, cuts, and patterns appropriate to the part. Identify which values should become parameters.
3
Build and compare
Create the model, then check measured dimensions against the source. Compare orthogonal and section views where relevant.
4
Deliver the reconstruction
Request the editable source, exchange format, dimension comparison, and unresolved assumptions.
Reconstruct a stepped spacer
Handle incomplete information
Do not use a printed view’s apparent size as an exact dimension unless the scale and measurement method are established. A scan can be distorted, and an isometric view can hide depth or internal details.Resolve an ambiguous feature