Mobile CAD used to mean a compromise. Not anymore - with the right CAD viewer, the phone you already carry handles real, heavy drawings.
Step 1: Standardize your markup
Agree a colour convention with the team - red for clashes, blue for queries, green for approved - so markup reads the same to everyone.
Step 2: Get oriented with layers
Use layer management to switch off what you do not need. On a busy drawing that means isolating the structural grid, the services layer, or the furniture plan so you can actually see the issue.
Step 3: Keep revisions straight
Name versions clearly and re-open the latest before a review, so you are never marking up a drawing that has already moved on.
Step 4: Zoom, pan, and rotate
Pinch to zoom, drag to pan, and rotate 2D or 3D views to inspect from any angle. Smooth rendering keeps even heavy models usable on a phone.
Tip: before a client meeting, pre-load the drawings and check your markup colours on a bright screen. No surprises mid-presentation.
If you are still emailing screenshots and hoping the other person finds the right detail, this is the upgrade. A CAD viewer puts the comment where the problem is.
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