Transfer the mounting datum from the upper window to the side interfaces.
Reference parameters
The base combines a recessed window, locating shoulders, mounting holes and side features. Some surfaces locate an assembly while others provide clearance, so their different functions guide the machining and inspection sequence.
Applying the same effort to every window face can waste machining time while missing the truly functional ones.
Identify functional faces and their tolerances before setting the finishing order.
Repositioning can shift the relationship between side holes and the upper mounting plane.
Carry the mounting datum into the side setup and verify the transferred reference.
Separate functional shoulders from clearance surfaces and establish the mounting datum before opening the window.
Machine the window and transfer the mounting datum to side-face features without treating the setups independently.
Finish the specified holes and threads, retain locating edges during deburring and check the final mating condition.
Check specified locating shoulders and step depths from the mounting reference.
Keep the mating component seated at the correct level.
Inspect hole positions across orientations using a consistent datum transfer.
Relate side features to the top mounting interface.
Use appropriate thread gauges where specified and inspect final mating surfaces and edge condition.
Support fastening without damaging locating contacts.
Part number and revision → feature and datum → sample and batch → instrument and measured result. Agree the required records with the order.
Review inspection recordsProtect window shoulders and distinguish drawing revisions in labels so visually similar versions are not mixed.
Send your 2D drawing, 3D model, material and quantity. For this type of part, include:
