<R27>

Most modifications to non-electrical components are allowed. Physical modifications, such as bending or cutting, of legal metal structure or plastic components are permitted.
• Modifying the arm of limit switches (by bending or trimming) or removing the rubber cap of bumper switches is permitted.
• Metallurgical modifications that change fundamental material properties, such as heat treating or melting, are not permitted.
• Pneumatic tubing may be cut to desired lengths.
• Fusing/melting the end of legal nylon rope/string (see <R19d>) to prevent fraying is permitted.
• Welding, soldering, brazing, gluing, or attaching parts to each other in any way that is not provided within the VEX platform is not permitted. Rule <R19c> is an exception to this rule.
• Mechanical fasteners may be secured using Loctite or a similar thread-locking product. This may ONLY be used for securing hardware, such as screws and nuts. This rule is applied differently for VEX U. See Rules <VUR3>, <VUR12> & <VUR13>.

Game Rules Index