ShaftMaster
Model vertical HVAC shafts in Revit as per-level segments — draw a profile, set the airflow, and read area, velocity and pressure drop instantly, all in your project’s own units
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General usage instructions
ShaftMaster turns the tedious job of modelling vertical HVAC shafts into a single, guided workflow. Draw a closed profile once and ShaftMaster extrudes it through every level of the building as a stack of per-level segments that stay one single, editable shaft.
How it works: pick Create Shaft, draw the profile with model lines (or the Rectangle tool, or reuse existing lines / a filled region) and press Esc. A level table appears listing every level in the project. Tick the levels the shaft passes through, type the airflow for each segment, and ShaftMaster instantly computes cross-section area, cumulative airflow, air velocity and an estimated pressure drop — every value shown in the units your Revit project is configured with (metric or imperial). Click OK and the shaft is placed.
It is built for HVAC / MEP engineers and BIM modellers who lay out ventilation shafts across multi-storey buildings and want them consistent, parametric and schedulable — without modelling each floor by hand.
Key features
- Draw an arbitrary closed profile — model lines, the Rectangle tool, picked lines, or a filled-region boundary.
- One shaft, many segments — each level gets its own segment; segments can inherit the profile below them or carry their own shape.
- Per-segment control — bottom/top offsets, “align to lower” positioning, and per-segment airflow, with cumulative (main) airflow rolled up automatically.
- Live engineering values — cross-section area, air velocity and a quick pressure-drop estimate update as you type.
- Project units everywhere — all lengths, areas, airflow, velocity and pressure follow the project’s unit settings; nothing is hard-coded to metric.
- Check Ducts — finds the horizontal ducts that intersect each segment, sums their airflow, and colour-codes each segment green when the duct flow matches the design flow (red when it doesn’t); one click copies the measured flow into the segment.
- Edit any shaft later — reopen it from the floating palette, re-draw a segment’s profile, change airflow or offsets, or rename it.
- Duplicate-ID protection — a Shaft ID that already exists is rejected, so you never silently overwrite another shaft.
- Delete a shaft in one click from the palette, with confirmation.
- Floating palette lists every shaft in the project (ID, system, level range, area, max airflow, pressure drop, comments); double-click a row to edit, or pick the shaft in the model.
- Schedule-ready — every shaft carries native shared parameters (Shaft ID, airflow, area, velocity, level) so it drops straight into Revit schedules.
How to use it
- 1On the Vixeldorf ribbon tab, click Shaft Master to open the floating palette.
- 2Click Create Shaft and draw a closed profile in a plan view (model lines or the Rectangle tool); press Esc when the loop is closed.
- 3In the level table, tick every level the shaft spans and enter the airflow for each segment. Area, cumulative airflow, velocity and pressure drop update automatically in your project’s units.
- 4Optional — click Check Ducts to match each segment against the horizontal ducts that cross it; green means the duct flow matches the design flow. Use the arrow button to copy a measured flow into a segment.
- 5Give the shaft an ID (and system type / comments if wanted) and click OK to place it.
- 6To revisit a shaft, select its row in the palette (or pick it in the model) and click Edit Shaft; use Delete Shaft to remove it, or the per-row “Edit…” button to re-draw a single segment’s profile.
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