How to Convert RVT and RFA to DWG: Complete Revit-to-AutoCAD Export Guide
Converting Revit project files (RVT) and Revit Family files (RFA) to DWG is a standard requirement for cross-platform collaboration, subcontractor coordination, CAD deliverables, CNC preparation, and legacy archiving.
The short version: open the RVT or RFA file in Revit, go to File > Export > CAD Formats > DWG, configure the DWG export setup, choose the right view, units, coordinates, layers, and geometry export method, then clean the file in AutoCAD before issuing it.
A clean export is not a one-click conversion. It is a controlled translation from Revit’s category-based BIM system into AutoCAD’s layer-based CAD system. For a professional result, focus on three things:
- Layer mapping
- Coordinate accuracy
- Geometry integrity
Autodesk’s Revit DWG export workflow uses File > Export > CAD Formats > DWG, with export setup controls for layers, units, coordinates, and solids. (Autodesk)
RVT vs RFA vs DWG: Know What You Are Converting
Before exporting, be clear about the source file and the expected output.
| File type | What it contains | Typical DWG result |
|---|---|---|
| RVT | Full Revit project model: plans, views, sheets, levels, grids, links, annotations, model elements | 2D drawings, 3D model DWGs, sheets, or coordinated CAD backgrounds |
| RFA | Revit Family/component: doors, windows, equipment, furniture, fixtures, custom parts | 2D block, 3D block, solid model, or manufacturing reference |
| DWG | AutoCAD drawing format | Final CAD deliverable, coordination file, archive file, or editable CAD reference |
| IFC | Neutral BIM exchange format | Fallback route when native Revit export fails or when another BIM tool is involved |
What Gets Lost When Revit Becomes DWG
A DWG export is not a full BIM transfer. The geometry may come across cleanly, but the intelligence behind the model usually does not.
Expect these losses or changes:
- Revit parameters are usually not preserved as usable BIM data.
- Families stop behaving like parametric Revit families.
- Constraints, formulas, hosted behavior, and connectors are lost.
- Walls, floors, doors, and windows become CAD geometry, blocks, solids, meshes, or linework.
- Schedules, model relationships, and most metadata do not transfer as editable AutoCAD intelligence.
- Materials may not survive in a useful way for downstream CAD work.
- View-dependent graphics may export differently depending on the active view, detail level, phase, filters, and view template.
This is why a DWG should be treated as a CAD deliverable, not as a replacement for the Revit model.
Before You Export: Fast Pre-Flight Checklist
Run this checklist before exporting.
- Open the correct view or sheet.
- Confirm whether the deliverable is 2D DWG or 3D DWG.
- Set the correct detail level: Coarse, Medium, or Fine.
- Check Visibility/Graphics (VG).
- Turn off unnecessary categories, links, imports, reference planes, connectors, and working elements.
- Confirm the correct view template is applied.
- Confirm units: millimeters, meters, inches, or feet.
- Confirm coordinates: Shared Coordinates or Internal Origin.
- Confirm True North or Project North if site orientation matters.
- Configure layer mapping before export.
- Use ACIS solids when a clean 3D DWG is needed.
- Export a test file before issuing the final package.
- Open the DWG in AutoCAD and run cleanup commands.
2D DWG vs 3D DWG: Pick the Right Output
Do not export blindly. The right method depends on the deliverable.
Use 2D DWG When You Need CAD Drawings
Use 2D DWG export for:
- Floor plans
- Reflected ceiling plans
- Sections
- Elevations
- Details
- Sheets
- Consultant backgrounds
- Permit or tender CAD deliverables
In this case, Revit exports the visible linework from the selected view or sheet. The result is usually easier for subcontractors and CAD technicians to use.
Use 3D DWG When You Need Geometry
Use 3D DWG export for:
- Coordination models
- Fabrication references
- Equipment blocks
- Furniture or fixture libraries
- Massing studies
- CNC or manufacturing checks
- Import into other CAD/CAM tools
For 3D exports, open a clean 3D view and export the visible model geometry. For best downstream editing in AutoCAD, use ACIS solids where possible. Autodesk documents the Revit workflow for exporting 3D DWG geometry using the ACIS Solids option. (Autodesk)
1. Exporting RVT Revit Projects to DWG
The main objective when exporting an RVT project is to translate Revit’s category-based system into AutoCAD’s layer-based system without creating a heavy, disorganized DWG.
Step 1: Open the Correct Revit View
Revit exports what the selected view or sheet tells it to export.
Use a dedicated export view whenever possible. Do not export from a working view full of temporary categories, linked files, imported CAD junk, reference planes, section boxes, scope boxes, or coordination clutter.
For a clean 2D DWG:
- Open the required plan, section, elevation, detail, or sheet.
- Check Visibility/Graphics (VG).
- Remove unnecessary model categories.
- Hide temporary construction elements.
- Confirm the view scale.
- Confirm line weights and detail level.
- Check the active phase and phase filter.
For a clean 3D DWG:
- Open a dedicated 3D export view.
- Use a section box if only part of the model is required.
- Hide categories that do not belong in the DWG.
- Remove linked models unless they are part of the deliverable.
- Set the correct level of detail.
- Confirm whether the model should export by Shared Coordinates or Internal Origin.
Step 2: Open the DWG Export Command
Go to:
File > Export > CAD Formats > DWG
This is the standard Revit path for DWG export. Autodesk’s Revit export documentation uses this same export route. (Autodesk)
Step 3: Modify the Export Setup
Do not rely on default settings. They often produce poor layer structure, unwanted overrides, and messy deliverables.
In the DWG export dialog, click the “…” Modify Export Setup button.
This is where the real quality control happens.
Step 4: Configure Layer Mapping
Go to the Layers tab.
Select a recognized standard such as:
- AIA
- ISO 13567
- Singapore CP83
- A custom company standard
If your office uses a corporate CAD standard, load the correct export layer file (.txt) or mapped layer standard.
This is where Revit categories such as Walls, Doors, Windows, Floors, Structural Framing, and Mechanical Equipment get translated into AutoCAD layers.
A weak layer setup creates DWGs that look acceptable on screen but are painful to manage, plot, xref, filter, or reuse.
Step 5: Configure Lines, Patterns, Fonts, and Colors
Go through these tabs carefully:
- Lines
- Patterns
- Text & Fonts
- Colors
- Lineweights
Map Revit styles to the correct AutoCAD equivalents. This keeps the DWG consistent with the recipient’s CAD standard.
Watch for these common problems:
- Revit line patterns becoming strange custom AutoCAD linetypes
- Filled regions exporting as dense hatch patterns
- Fonts substituting incorrectly
- Lineweights looking too heavy or too thin
- Objects exporting with direct color overrides instead of layer-based properties
Step 6: Set Units and Coordinates
Go to the Units & Coordinates tab.
This is where many BIM-to-CAD exports fail.
Set the export units to match the required deliverable:
- Millimeters
- Meters
- Inches
- Feet
Use Shared Coordinates when the DWG must align with:
- Site survey files
- Civil CAD backgrounds
- Linked consultant models
- Federated coordination models
- GIS or infrastructure references
- Other discipline DWGs
Use Internal Origin only when exporting isolated drawings, details, families, or standalone geometry that does not need site alignment.
Step 7: Check True North and Project North
For site-based DWGs, orientation matters.
Before export, confirm whether the recipient expects:
- Project North
- True North
- Survey northing/easting orientation
- Local building grid orientation
A model can be geometrically correct and still land in the wrong place if the view orientation and coordinate basis are wrong.
For site coordination, export from a view set correctly to the expected orientation and coordinate system.
Step 8: Configure Solids and 3D Geometry
Go to the Solids or General export options, depending on your Revit version.
If the DWG is for 3D coordination, select:
Export as ACIS solids
This creates better downstream 3D geometry than a file full of polymesh faces. ACIS solids are generally easier to query, section, measure, and use for mass property calculations in AutoCAD.
That said, not every Revit object can become a clean AutoCAD 3D solid. Some complex geometry may still export as a body or mesh depending on its shape and how it was modeled.
Step 9: Choose the DWG Version
Pick the DWG version required by the receiving party.
Do not assume everyone is running the latest AutoCAD version. Many contractors, fabricators, and authorities still request older DWG formats.
Typical choices:
- Recent DWG version for internal work
- Older DWG version for broad compatibility
- Version requested by contract, client, or authority
Ask the recipient what DWG version they need before issuing the final file.
Step 10: Export and Open the DWG in AutoCAD
Never issue the file straight from Revit without opening it.
Open the exported DWG in AutoCAD and check:
- Coordinates
- Units
- Layer names
- Linetypes
- Hatch patterns
- External references
- Blocks
- Text styles
- File size
- Plot appearance
- 3D solid behavior, if applicable
- Room and area tag attributes
- Proxy objects
- Missing doors, windows, fixtures, or MEP objects
If the DWG is going to a client or subcontractor, test it like they will use it.
2. Converting RFA Revit Families to DWG
Converting an RFA file to DWG is usually done to create:
- A 2D AutoCAD block
- A 3D AutoCAD block
- A manufacturing reference
- A CNC preparation file
- A supplier library object
- A legacy CAD component
The process is similar to RVT export, but the setup is more sensitive because families often include reference planes, connectors, nested elements, symbolic lines, parameters, and visibility controls.
Step 1: Open the RFA File Directly in Revit
Open the RFA file in Revit.
Do not place it into a project unless you specifically need project context, hosting behavior, or a coordinated insertion point.
Step 2: Choose the Correct View
Revit exports only what is visible in the current view.
For a 2D DWG block, open:
- Floor plan view
- Front elevation
- Side elevation
- Back elevation
- Detail view
- Ref. Level view
For a 3D DWG block, open:
- A clean 3D view
To get a 3D DWG from an RFA, you must export from a 3D view.
Step 3: Clean Visibility/Graphics
Open Visibility/Graphics (VG).
Hide anything that should not appear in the DWG:
- Reference planes
- Reference lines
- Dimensions used for family control
- Connectors
- Nested control geometry
- Symbolic-only elements
- Clearance zones
- Manufacturer notes
- Construction geometry
- Hidden family subcomponents
This step matters. Many bad RFA-to-DWG exports are caused by exporting family control geometry that was never meant to leave Revit.
Step 4: Check Family Detail Levels
Families often display different geometry at different detail levels.
Check:
- Coarse
- Medium
- Fine
If the exported DWG needs manufacturing-level geometry, use the correct detail level. If the DWG is only for layout coordination, a simplified export may be better.
Step 5: Export the RFA to DWG
Use the same path:
File > Export > CAD Formats > DWG
Then use the same export setup controls:
- Layers
- Lines
- Patterns
- Fonts
- Units
- Coordinates
- Solids
- DWG version
Step 6: Use ACIS for 3D Family Blocks
For 3D family exports, set the solids export to:
ACIS solids
This helps the exported block remain useful in AutoCAD for:
- Mass property calculations
- Sectioning
- Clash checking
- Boolean operations
- Fabrication review
- Accurate volume checks
Autodesk’s Revit guidance for 3D DWG export specifically uses ACIS Solids when exporting Revit model geometry as 3D solids. (Autodesk)
Step 7: Convert the Result to a Clean AutoCAD Block
After opening the DWG in AutoCAD:
- Move the object to the correct insertion point.
- Set the base point.
- Clean the layers.
- Remove unused blocks and styles.
- Confirm units.
- Save as a clean block library file if needed.
For library work, the base point matters as much as the geometry. A clean block with a bad insertion point wastes time every time someone uses it.
Room Tags, Area Tags, and AutoCAD Attributes
When exporting 2D Revit plans, Room Tags and Area Tags often become AutoCAD blocks with attributes.
That is not a problem if the CAD user knows what they are looking at. In AutoCAD, these attributes can usually be managed through:
- BATTMAN: Block Attribute Manager
- GATTE: Global Attribute Edit
- ATTSYNC: Synchronize block attribute definitions
Autodesk describes BATTMAN as the command used to control attribute properties and settings in a selected block definition. (help.autodesk.com)
This matters on real projects because room names and numbers often change after the DWG has been issued to a consultant or contractor. If the tags exported as attributes, the CAD technician can edit them without redrawing the tag.
Use this workflow:
- Select a room tag block.
- Check whether the text is an attribute.
- Use BATTMAN to manage the block attribute definition.
- Use GATTE when the same attribute value must be changed globally.
- Use ATTSYNC if attribute definitions and inserted blocks are out of sync.
Do not explode room tag blocks unless there is no other option. Once exploded, the tag becomes loose text and linework. That removes the attribute structure and makes global edits harder.
Object Enablers and Proxy Objects
If the DWG is being opened by someone using plain AutoCAD instead of a vertical product such as AutoCAD Architecture, AutoCAD MEP, Civil 3D, or another discipline-specific AutoCAD toolset, they may see proxy objects instead of proper geometry.
This can happen when the DWG contains objects created by a vertical Autodesk product or by an add-on application that the recipient does not have.
Common symptoms:
- Objects show as boxes.
- Objects cannot be edited.
- Properties are limited.
- Geometry does not display correctly.
- Plot output is missing parts of the model.
- A proxy warning appears when opening the file.
The fix is to install the correct Object Enabler or ask the sender to export/convert the objects into plain AutoCAD geometry before issue.
For Revit-to-DWG workflows, this is most relevant when the DWG passes through AutoCAD Architecture, AutoCAD MEP, Civil 3D, or fabrication tools after the Revit export.
Do Not Explode Revit-Exported DWGs Without a Reason
Exploding a Revit-exported DWG is tempting. It is also one of the fastest ways to damage a file.
A Revit export often contains nested blocks, anonymous blocks, hatch definitions, attribute blocks, and dense linework. Exploding these blocks can create:
- Thousands of tiny line segments
- Zero-length geometry
- Duplicate objects
- Overlapping hatch boundaries
- Broken room tag attributes
- Lost block names
- Lost insertion points
- Heavy files that are harder to purge
- Geometry that even OVERKILL cannot clean properly
Use EXPLODE only when you know exactly why you need it.
Better options:
- Edit the block definition.
- Use BATTMAN for attributes.
- Use BEDIT for block edits.
- Use SETBYLAYER for property control.
- Use XREF management instead of binding and exploding everything.
- Ask for a cleaner export from Revit when the DWG structure is wrong.
A CAD file that has been exploded three times by three different people is rarely worth saving. Start again from a clean export if possible.
3. Post-Export Optimization: Clean the DWG Before Issuing
Revit-exported DWGs are often heavy. That is normal, but not acceptable for final delivery.
A professional CAD workflow includes cleanup before release.
Save a Working Copy First
Do not clean the only copy.
Use:
SAVEAS
Keep three files:
- Original Revit export
- Cleaned AutoCAD working file
- Final issued DWG
This gives you a rollback path if cleanup removes something you later need.
Run AUDIT First
Use:
AUDIT
Run it immediately after opening the exported DWG.
Use it to detect and repair drawing database errors created during export or inherited from linked/imported content.
Run -PURGE, Not Just PURGE
Use the command-line version:
-PURGE
The hyphen matters.
The command-line -PURGE gives access to cleanup options that are not always obvious in the dialog version, including Regapps.
For Revit-exported or consultant-heavy DWGs, registered applications (Regapps) are a common cause of:
- Large file size
- Slow open time
- Slow save time
- Slow copy/paste
- Lag when selecting objects
- Slow xref loading
- Save-as delays
Use this sequence:
- Type -PURGE.
- Choose R for Regapps.
- Confirm the cleanup.
- Repeat if needed.
- Then run normal PURGE for visible unused content.
Autodesk’s Regapp cleanup utility documentation explains that excess unreferenced Regapp IDs can negatively affect file performance. (images.autodesk.com)
Run PURGE
Use:
PURGE
Remove unused:
- Layers
- Blocks
- Linetypes
- Text styles
- Dimension styles
- Materials
- Regapps
- Multileader styles
- Plot styles, where applicable
Revit can generate a large amount of named content during export. PURGE removes the unused leftovers.
Run OVERKILL
Use:
OVERKILL
Revit often exports overlapping or duplicate linework, especially where:
- Walls meet floors
- Detail components overlap
- Room boundaries touch model edges
- Filled regions sit over model lines
- Linked models duplicate host model geometry
- 2D annotation overlaps model projection
OVERKILL deletes duplicate geometry and simplifies overlapping linework.
Use it carefully. On complex drawings, run it by area or by layer instead of selecting the entire file at once.
Run SETBYLAYER
Use:
SETBYLAYER
Revit exports can carry object-level overrides for:
- Color
- Linetype
- Lineweight
- Transparency
- Plot style
SETBYLAYER forces entities to inherit properties from their assigned layer.
This is one of the quickest ways to turn a messy export into a file that behaves like a normal CAD drawing.
Check LTSCALE and PSLTSCALE
If dashed or hidden lines appear solid, check:
- LTSCALE
- PSLTSCALE
- MSLTSCALE
- Linetype mapping in the Revit export setup
A practical starting point in AutoCAD is:
- LTSCALE = 1
- PSLTSCALE = 1
- MSLTSCALE = 1
Then test in the actual layout or model space workflow used by the receiving team.
Check Layer State and Plot Style
After cleanup, check:
- Are objects on the right layers?
- Are colors controlled by layer?
- Are linetypes controlled by layer?
- Are lineweights controlled by layer?
- Does the drawing plot correctly?
- Are xrefs attached or bound as required?
- Are annotation objects readable?
- Are room and area tags still editable as attributes?
A DWG is not clean until it plots correctly.
Recommended CAD Cleanup Sequence
Use this order after opening the exported DWG in AutoCAD:
- SAVEAS a working cleanup copy.
- Run AUDIT and fix errors.
- Run -PURGE.
- Choose R for Regapps.
- Run PURGE for unused named objects.
- Run OVERKILL on relevant geometry.
- Run SETBYLAYER.
- Check UNITS.
- Check LTSCALE, PSLTSCALE, and MSLTSCALE.
- Check coordinates against a known control file.
- Check room and area tag attributes.
- Check layers and plot style.
- Save the final issue copy.
Advanced Considerations
Batch Processing
If you are converting hundreds of RFA files, manual export is inefficient.
Use one of these methods:
- pyRevit Batch Export
- Dynamo script
- Revit API macro
- Autodesk Platform Services / Design Automation workflow
- Internal automation script
- Controlled family library conversion process
For large libraries, document the export settings and test a small group first. Batch conversion multiplies mistakes fast.
Dealing with IFC
If the Revit file is corrupt or does not export correctly, use IFC as a fallback route.
Workflow:
- Export the Revit model to IFC.
- Open or convert the IFC using a BIM-capable tool.
- Export or convert to DWG from there.
This can sometimes bypass ghost geometry, corrupt families, or native Revit export issues.
Do not treat IFC as a repair tool. It can help, but it may also change geometry, object structure, naming, and classification.
Linked Models
When exporting a Revit project with linked models, decide how links should be handled.
You usually have two choices.
Export Linked Models as Xrefs
This creates a master DWG with external references.
Best for:
- Smaller file sizes
- Discipline separation
- Consultant coordination
- Easier file management
- Projects where links must remain separate
Downside: the recipient must receive and maintain all referenced DWG files.
Merge or Bind Linked Geometry into One DWG
This creates a single frozen DWG snapshot.
Best for:
- Client issue
- Authority submission
- Archive package
- Recipients who do not manage xrefs well
- One-time coordination issue
Downside: file size increases, and layer structure can become harder to manage.
Can You Convert RVT or RFA to DWG Without Revit?
For a clean professional export, use Revit.
AutoCAD does not open RVT or RFA files as native editable Revit models. A viewer may let someone inspect a model, but viewing is not the same as producing a controlled DWG export.
Practical alternatives:
- Ask the model author to export DWG from Revit.
- Use Autodesk Platform Services / Design Automation for automated exports.
- Use a BIM coordination platform if DWG export is supported in your workflow.
- Use IFC as an intermediate format only when native export fails.
- Use a third-party conversion service only after checking confidentiality, model ownership, and deliverable quality.
For contractual deliverables, avoid random online converters. Most are not suitable for confidential project models, and many produce poor layer structure or broken geometry.
Best Export Settings for Clean DWG Files
Use these settings as a baseline.
| Requirement | Recommended setting |
|---|---|
| CAD background plan | 2D view or sheet export |
| 3D coordination | 3D view export |
| Editable 3D geometry | ACIS solids |
| Site alignment | Shared Coordinates |
| Isolated detail or component | Internal Origin |
| Clean AutoCAD layering | Custom layer mapping |
| Consultant issue | Export links as xrefs if they can manage references |
| Client snapshot | Merge or bind linked geometry into one DWG |
| Smaller file size | Hide unnecessary categories and purge after export |
| Better plotting | Control object properties by layer |
| Editable room tags | Preserve blocks with attributes |
| Slow DWG performance | Run -PURGE > Regapps |
| Recipient sees boxes/proxies | Install correct Object Enabler or convert to plain AutoCAD geometry |
Troubleshooting Table: Common Export Fails
| Symptom | Primary suspect | The fix |
|---|---|---|
| DWG is off-site | Coordinate basis | Switch from Internal Origin to Shared Coordinates and test against the survey/control DWG. |
| Dashed lines look solid | LTSCALE / PSLTSCALE | Set LTSCALE = 1, PSLTSCALE = 1, then check the Linetype tab in Revit Export Setup. |
| 3D solids are hollow or unusable | Geometry export setting | Change from Polymesh to ACIS Solids in the DWG export setup. |
| Missing windows or doors | Visibility/Graphics or phase settings | Check whether elements are hidden, filtered, demolished, existing, or in a different phase in the Revit view. |
| File is huge after export | Regapps, dense hatches, duplicate linework | Run AUDIT, -PURGE > Regapps, PURGE, and OVERKILL. |
| Room tags are hard to edit | Exported as block attributes | Use BATTMAN, GATTE, or ATTSYNC instead of exploding the tags. |
| Geometry displays as boxes | Proxy objects / missing Object Enabler | Install the correct Object Enabler or request plain AutoCAD geometry. |
| DWG plots differently from Revit | Fonts, lineweights, plot styles | Check Text & Fonts, Lines, Patterns, and AutoCAD plot style tables. |
| Xrefs are missing | Linked model export method | Send the full export folder, use ETRANSMIT, or merge linked geometry into one DWG. |
| File slows during save-as | Regapps and excess named objects | Use -PURGE, choose R for Regapps, then run PURGE again. |
| 3D export is full of mesh faces | ACIS not enabled or geometry too complex | Enable ACIS solids and simplify problem families if needed. |
| Blocks explode into a mess | Nested Revit export blocks | Avoid EXPLODE. Edit blocks directly or request a cleaner export. |
Common Problems and Fast Fixes
Problem: The DWG Opens in the Wrong Location
Likely cause:
- Wrong coordinate basis
- Exported from sheet instead of model view
- Shared coordinates not set correctly
- True North / Project North mismatch
- Survey point or project base point confusion
Fix:
- Confirm shared coordinates in Revit.
- Export using Shared Coordinates.
- Export from the correct view.
- Test against the site survey DWG.
- Check units before assuming the file is misplaced.
Problem: The DWG Is Too Large
Likely cause:
- Too much model geometry visible
- Dense hatch patterns
- Fine detail level
- Linked models included
- Mesh-heavy export
- Unused blocks/styles/layers
- Excess Regapps
- Repeated annotation or detail components
Fix:
- Export only the required view.
- Turn off unnecessary categories.
- Avoid exporting the entire model if only one zone is needed.
- Run AUDIT.
- Run -PURGE, then choose R for Regapps.
- Run PURGE.
- Run OVERKILL.
- Simplify the detail level.
Problem: Layers Are a Mess
Likely cause:
- Default Revit export setup
- No office CAD standard
- Poor category-to-layer mapping
- Object-level overrides
Fix:
- Build a proper DWG export setup.
- Load a company layer mapping file.
- Use a recognized standard such as AIA or ISO 13567.
- Run SETBYLAYER in AutoCAD.
- Check layer colors and plot styles.
Problem: 3D Geometry Exports as Mesh Instead of Solids
Likely cause:
- ACIS solids not selected
- Revit object cannot become a true solid
- Complex curved or imported geometry
- Bad family modeling
- Non-manifold geometry
Fix:
- Select ACIS solids in the export setup.
- Simplify the family or model geometry.
- Test one object before exporting the whole model.
- Rebuild problematic families if the DWG must contain clean solids.
Problem: The DWG Looks Different from the Revit View
Likely cause:
- Font substitution
- Line pattern conversion
- Hatch pattern conversion
- Object overrides
- View template differences
- Detail level differences
Fix:
- Configure Lines, Patterns, and Fonts tabs.
- Use a dedicated export view.
- Test plot the DWG.
- Avoid relying on Revit view graphics that do not translate well to AutoCAD.
Problem: The Recipient Cannot Use the Xrefs
Likely cause:
- Linked DWGs not included
- Broken relative paths
- Xrefs exported to separate folders
- Recipient expected one bound file
Fix:
- Send the full export folder.
- Use relative paths.
- Use ETRANSMIT in AutoCAD.
- Bind or merge links when the client needs one file.
Problem: Room Tags Exported but Cannot Be Edited Normally
Likely cause:
- Tags became AutoCAD blocks with attributes.
- Attributes are not synchronized.
- The block was exploded.
- The CAD user is editing visible text instead of the attribute value.
Fix:
- Use BATTMAN to manage the attribute definition.
- Use ATTSYNC to synchronize attributes.
- Use GATTE for global attribute edits.
- Avoid exploding the tag block.
Problem: The DWG Shows Proxy Objects
Likely cause:
- Recipient does not have the needed vertical AutoCAD toolset or Object Enabler.
- The DWG passed through AutoCAD Architecture, MEP, Civil 3D, or another vertical application.
- Objects were not converted to plain AutoCAD geometry.
Fix:
- Install the correct Object Enabler.
- Ask for a version saved/exported as plain AutoCAD geometry.
- Check whether PROXYGRAPHICS was enabled when the file was saved.
- Avoid using vertical-specific objects in final neutral CAD deliverables.
When to Use DWG, IFC, or Native Revit Instead
Use DWG when the recipient needs AutoCAD-based drafting, coordination backgrounds, shop drawing references, or legacy CAD files.
Use IFC when the recipient needs BIM-style exchange across platforms and can work with object-based data.
Use native Revit RVT/RFA when the recipient needs actual Revit intelligence, families, parameters, schedules, or model coordination inside Revit.
Do not send DWG when the recipient actually needs BIM data. Do not send RVT when the recipient only needs a clean CAD background.
FAQ
Can AutoCAD Open RVT Files Directly?
No. AutoCAD does not open RVT files as native editable Revit projects. Use Revit to export the RVT to DWG, or ask the model author to provide a DWG export.
Can AutoCAD Open RFA Files Directly?
No. RFA files are Revit Family files. Open the RFA in Revit, then export the required 2D or 3D view to DWG.
How Do I Convert RVT to DWG?
Open the RVT file in Revit, go to File > Export > CAD Formats > DWG, modify the export setup, configure layers, units, coordinates, and solids, then export the selected view or sheet.
How Do I Convert RFA to DWG?
Open the RFA file in Revit, choose the correct 2D view or 3D view, hide unwanted reference geometry and connectors, then export using File > Export > CAD Formats > DWG.
Should I Export Revit to DWG as ACIS Solids or Polymesh?
Use ACIS solids when you need editable or measurable 3D geometry in AutoCAD. Use polymesh only when the receiving workflow accepts visual geometry and does not need solid editing.
Why Is My Revit DWG Export So Large?
Common causes include high-detail geometry, linked models, dense hatches, duplicate linework, unused Revit-generated styles, and excess Regapps. Clean the file with AUDIT, -PURGE > Regapps, PURGE, OVERKILL, and SETBYLAYER.
Why Should I Use -PURGE Instead of PURGE?
Use both. PURGE removes unused named objects through the dialog. -PURGE gives command-line access to options such as Regapps, which are a common cause of bloated, slow DWGs.
How Do I Keep Coordinates When Exporting Revit to DWG?
Use Shared Coordinates in the Units & Coordinates export settings. Confirm the Revit model is correctly coordinated before export, and test the DWG against a known survey or control file.
Should I Export from a Sheet or a View?
Export from a sheet when the deliverable is a plotted drawing package. Export from a model view when coordinates, clean model space geometry, or site alignment matter.
Can I Batch Convert RFA Files to DWG?
Yes. For large family libraries, use pyRevit, Dynamo, the Revit API, or Autodesk automation workflows. Test the export setup first. A bad batch export can create hundreds of bad DWGs quickly.
Does DWG Keep Revit BIM Data?
Not in the way Revit users expect. A DWG export mainly transfers geometry and graphics. Revit parameters, constraints, schedules, family behavior, and BIM relationships are usually lost or flattened.
Why Are My Layers Not Following the CAD Standard?
The export setup is probably using default or weak layer mapping. Configure the Layers tab in Revit’s DWG export setup and load the correct office or project layer standard.
Why Are Colors Overridden in the Exported DWG?
Revit can export object-level color or linetype overrides. In AutoCAD, run SETBYLAYER to force objects to inherit properties from their assigned layers.
What Happened to My Revit Room Tags in AutoCAD?
They often export as AutoCAD blocks with attributes. Use BATTMAN, GATTE, or ATTSYNC to manage and edit them. Do not explode them unless you want to lose the attribute structure.
Why Should I Avoid Exploding Revit-Exported Blocks?
Exploding can create thousands of small segments, zero-length objects, duplicate geometry, and broken attribute blocks. It usually makes the file harder to clean and slower to use.
Why Does the Recipient See Proxy Objects?
They may not have the needed Object Enabler or vertical AutoCAD toolset. Ask them to install the proper Object Enabler or request a DWG converted to plain AutoCAD geometry.
What Is the Best Way to Send DWGs with Linked Revit Models?
If the recipient can manage references, export linked models as xrefs. If they need one frozen file, merge or bind the linked geometry into a single DWG.
Can I Use IFC Before DWG?
Yes, but only as a fallback. Exporting to IFC first can help when the native Revit DWG export fails, but it can also change geometry and object structure.
What Is the Best Workflow for a Clean DWG Deliverable?
Prepare a dedicated Revit export view, configure DWG export settings, use the right coordinates, export with proper layer mapping, open the DWG in AutoCAD, then run AUDIT, -PURGE > Regapps, PURGE, OVERKILL, and SETBYLAYER before issuing the file.
Final Working Standard
For the cleanest Revit-to-DWG conversion, do not treat export as a one-click task.
Prepare the Revit view first. Configure layer mapping, units, coordinates, fonts, line patterns, and solids. Use Shared Coordinates for site-based work. Use ACIS solids for 3D DWG geometry. Preserve Room Tag attributes where they are useful. Avoid exploding Revit-exported blocks unless there is a clear reason. Open the result in AutoCAD. Clean it with AUDIT, -PURGE > Regapps, PURGE, OVERKILL, and SETBYLAYER. Check for proxy objects, bad linetype scaling, missing phased elements, and broken xrefs.
Then check the file like a contractor, fabricator, or CAD technician will actually use it.

