Free MEP Clash-Point Hole-Cutting Tool

Cut Opening Free is a Revit® extension for creating and cutting penetration holes in buildings where ducts, pipes, cable trays, or conduit intersect walls, floors, ceilings, or roofs.

• Adds opening offset if needed.
• User can change the type and shape of opening.
• The cut offset and shape of opening can be locked.
• Ability to change/delete existing openings if needed.

The table below compares the functionality of Cut Opening Free with Cut Opening (the commercial version).

FEATURES			DESCRIPTION
Total possibilities	100%	20%	You get 80% more with the commercial license!
Works with linked files		-	Create openings for linked MEP in architectural / structural file or vice versa.
Teamwork/collaboration between MEP, architectural & structural engineers		-	Share opening geometry and data with architects/structural engineers using .xml file.
Openings for IFC MEP elements		-	Create openings for current or linked MEP elements from IFC files.
Supported categories Walls Floors Roofs Ceilings Beams Columns Pipes Ducts Cable Trays Conduits		- -	Make openings for structural elements, such as Walls, Floors, Roofs, Ceilings, Slabs, Beams, Columns, and MEP elements, like Pipes, Ducts, Cable Trays, and Conduits.
Predefined configurations for: Cut Offset Joining Distance Opening Shape Interference Check		- - - -	Set configurations for opening size and cut offset from MEP object, define distance between two openings to be merged into one, define opening shape, and allow partial interference.
Configuration classification by: Round Duct Rectangular Duct Oval Duct Pipe: Fire protection Pipe: Plumbing Pipe: Sanitary Pipe: Hydraulic Pipe: Other Cable Tray Conduit MEP Object Size		- - - - - - - - - - -	Configure opening size, cut offset, joining distance, etc. by MEP element’s category and system classification.
Configuration sharing		-	Share predefined configurations with colleagues.
Calculate opening elevation from: Level Project zero point Global zero point		- - -	Calculate opening elevation in accordance with host level, project zero point, or global zero point.
Opening elevation positions Top Bottom Center		- - -	Calculate opening distance to the bottom, top, or center point of opening family.
Openings update if: MEP changed position MEP deleted New opening inserted Shape changed MEP size changed		- - - - -	Update openings if MEP elements are deleted, moved, resized, or any other action has been carried out on them.
Manual changes Change offset Delete opening Move opening			Possible to modify openings manually.
Minimum opening size		-	Set minimum MEP service size limit to insert openings.
Join selected openings		-	Join selected openings into one bigger opening. →
Partial interference openings		-	Possibility to add openings when MEP is partially clashing with structures. Wall partial interference Floor partial interference
Structural openings for doors & windows		-	Auto-insert openings for windows and doors in linked Structural model.
Fire dampers		-	Add fire dampers where needed.
Fire collars		-	Add fire collars where needed.
Families Round void Rectangular void Round solid Rectangular solid		- -	Distribute void families that cut structures in Revit models. Change voids to solid elements to export openings to Navisworks or IFC.
Extra parameters for documentation Opening shape Opening elevation Opening mark (passing through system mark) Host System classification System type System name Additional top cut offset Additional bottom cut offset		- - - - - - - - -	Use host and MEP service parameters for tagging, scheduling, etc.
Tracking openings Inserted by Insertion date Insertion configuration Declined by Approved by Approval comment Decline reason		- - - - - - -	See when, how, and who inserted openings. Approve or decline openings with comments.

Here's a taste of what you can do with Cut Opening (commercial version).