The desk is a measured rectangle.
The desk’s front-left corner is (0, 0). X increases toward the right edge; Y increases toward the back. The clamp sits on the chosen back, left or right edge at the entered offset. Active and parked microphone positions are points inside or near that rectangle, with a separate height above the desktop.
Values are stored internally in inches and converted for metric display. That choice prevents repeated unit changes from gradually rounding the plan.
Opening and pad contact are different constraints.
The required opening starts with desk thickness. If an apron or rail begins inside the entered clamp throat, its drop is added to the stack. The available flat underside contact is compared with a conservative portion of the clamp throat depth.
desk thickness + obstruction drop inside throatRounded, beveled and lipped edges receive a caution even when the raw dimensions pass, because pad shape is not modeled.
The target is tested in plan and elevation.
The model computes straight-line horizontal distance from the mount to the microphone. That distance is compared with the published horizontal reach and, when supplied, the sum of the two arm segments. Target height above the base riser is compared with the entered vertical reach.
Less than two inches of remaining modeled reach is marked tight. An arm at full extension may technically arrive at the point while leaving little freedom for cable routing or monitor clearance.
Two possible elbow directions are checked.
When both segment lengths are entered, BoomArmFit finds the two circle-intersection positions that can connect the base to the target. Each two-segment path is tested against the entered monitor rectangles with a small planning buffer. The route with fewer intersections is displayed.
A high-rise arm that overlaps a monitor in top view may receive a caution instead of a failure when the entered target and arm heights suggest an over-monitor route. That remains a manual hinge and cable check.
The full operating load is compared with both limits.
Microphone and accessory weights are added. The total must be at or above the entered minimum and at or below the entered maximum. Being too light can matter for spring-balanced arms: an unloaded arm may rise rather than hold position.
Hard constraints outrank convenience.
Does not fit when clamp, active reach or payload fails.
Partial fit when the core mount works but the monitor route or parked position fails.
Not enough information when a required published specification is missing.
Fits, but measure one tight area when no check fails but at least one margin or physical detail needs confirmation.
Fits with room only when all five checks pass without a tight flag.
A useful drawing is not a mechanical simulation.
- Product specifications can be revised or measured differently.
- Joint-angle stops, spring adjustment and head rotation are simplified.
- Clamp-pad shape and surface strength are not modeled.
- Wall, shelf and human movement zones must be entered as obstacles.
- Desk strength and safe installation remain the user’s responsibility.
When this model conflicts with the product manual or desk manufacturer, follow the manufacturer.