Meyer Sound MG-3D, MG-3M User Manual
ASSEMBLY GUIDE
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
M SERIES
Keep these important assembly instructions.
Check www.meyersound.com for updates.
Refer to the MILO 120 Operating Instructions for
additional information on that product.
© 2007 Meyer Sound. All rights reserved.
MG-3D/M Multipurpose Grid and Accessories Assembly Guide
The contents of this manual are furnished for informational purposes only, are subject to change without notice, and should not be construed as a
commitment by Meyer Sound Laboratories Inc. Meyer Sound assumes no responsibility or liability for any errors or inaccuracies that may appear
in this manual. Except as permitted by applicable copyright law, no part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical, recording or otherwise, without prior written permission from Meyer Sound.
AlignaLink, M3D, and all alphanumeric product designations are trademarks of Meyer Sound. Meyer Sound, MILO, and QuickFly are registered
trademarks of Meyer Sound Laboratories Inc. (Reg. U.S. Pat. & Tm. Off.). All third-party trademarks mentioned herein are the property of their
respective trademark holders.
Printed in the U.S.A.
Part Number: 05.132.036.01 B2
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
CONTENTS
This Assembly Guide provides instructions on how to safely assemble and use the MG-3D/M multipurpose grid and
accessories. In addition to descriptions of the MG-3D/M grid's major components, this guide will show you how the
components work together, with examples of common uses.
1. General Information ............................................................................................................................................
Safety Statement ...................................................................................................................................................5
MG-3D/M Multipurpose Grid Overview ................................................................................................................7
Load Ratings Overview .........................................................................................................................................8
2. Using MILO
®
with the MG-3D/M Grid ................................................................................................................9
MILO System Load Ratings and Pickup Configurations .......................................................................................9
Using One or Both Center Points ...................................................................................................................9
Using All Four Corner Points ........................................................................................................................10
MLK-MILO Link Kit ..............................................................................................................................................12
MG-3D/M Grid and MILO Rear Flown Configuration ..........................................................................................13
MG-3D/M Grid and MILO Front Flown Configuration .........................................................................................14
MILO Ground-Supported Configurations ...........................................................................................................15
3. Using M3D/M3D-Sub with the MG-3D/M Grid ................................................................................................
M3D System Load Ratings and Pickup Configurations ......................................................................................16
Using One or Both Center Points .................................................................................................................16
Using All Four Corner Points ........................................................................................................................17
MLK-3D Link Kit ..................................................................................................................................................19
MG-3D/M Grid and M3D/M3D-Sub Rear Flown Configuration ..........................................................................20
MG-3D/M Grid and M3D/M3D-Sub Front Flown Configuration..........................................................................21
M3D/M3D-Sub Ground-Supported Configurations ...........................................................................................22
5
16
4: Transitions and Accessories
............................................................................................................................23
MTR-3D/M Transition Rail Kit: M3D/M3D-Sub to MILO ......................................................................................23
MTB-2D/M Transition Bar Kit: MILO to M2D .......................................................................................................25
MTK-2D Transition Kit: M3D/M3D-Sub to M2D ..................................................................................................26
PBF-MILO Pull-Back Frame ................................................................................................................................27
MVE-MILO Vertical Extension Bars .....................................................................................................................28
MCF-MILO Caster Frame Kit ...............................................................................................................................29
Meyer Sound Laboratories Inc.
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T: +1 510 486.1166
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PN: 05.132.036.01 B2
Page 3 of 32
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
Meyer Sound Laboratories Inc.
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T: +1 510 486.1166
F: +1 510 486.8356
PN: 05.132.036.01 B2
Page 4 of 32
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
1. GENERAL INFORMATION
SAFETY STATEMENT
Please read this Statement carefully and in its entirety. It contains important information regarding safety issues, including
guidelines for general safe use of rigging systems as well as advisories on government regulations and liability laws.
SCOPE OF THIS MANUAL
Although this manual contains much useful information on rigging in general, it does not claim to be a comprehensive resource on the subject. This manual assumes that the owners and/or users of a QuickFly system are knowledgeable and experienced in the areas of rigging and flying loudspeaker systems. MANY ISSUES OF CRUCIAL CONCERN, SUCH AS THE DETERMINATION OF APPROPRIATENESS AND CONDITION OF VENUE RIGGING POINTS, CANNOT BE ADDRESSED HERE.
THEREFORE, THE USER MUST ASSUME ALL RESPONSIBILITY FOR THE APPROPRIATE USE OF QUICKFLY SYSTEMS IN
ANY PARTICULAR LOCATION OR CIRCUMSTANCE.
The suspension of large, heavy objects in public places is subject to numerous laws and regulations at the national/federal,
state/provincial, and local levels. This manual does not address the specifics of any such applicable laws and government
regulations. This manual details procedures and practices consistent with those generally acknowledged as allowable and
safe in the United States. However, the user must assume responsibility for making sure that use of any QuickFly system and
its components in any particular circumstance or venue conforms to all applicable laws and regulations in force at the time.
LOAD RATINGS AND SPECIFICATIONS
Long-term safe operation is a central concern in the design and manufacture of any rigging/flying system. Meyer Sound has
taken great care in material selection and component design. After manufacture, all load-critical system components are
individually inspected.
All load ratings and other specifications given in this manual are the result of accepted engineering practice and careful testing. However, such specifications and ratings are subject to change. USERS SHOULD CHECK THE QUICKFLY SECTION OF
THE MEYER SOUND WEB SITE AT
http://www.meyersound.com
OR CONTACT TECHNICAL SUPPORT AT REGULAR INTERVALS TO CHECK FOR UPDATED OR REVISED INFORMATION.
REGULATORY COMPLIANCE
The design and safe working load (SWL) ratings of the QuickFly system are intended to be in compliance with all known
regulatory statutes currently applicable in the United States. Unless otherwise specified, all working loads are based on either
a 5:1 or 7:1 safety factor. However, as noted above, there are wide variations internationally in the regulations and practices
applying to suspension of sound systems in public places. Although regulations in the United States are generally among the
most stringent, safety codes may be even stricter in a few localities (such as those highly prone to earthquakes). In addition,
applicable safety codes are open to interpretation: Government officials in one location may have a stricter interpretation than
another local official, even when operating under the same regulations and in the same legal jurisdiction.
CONSEQUENTLY, USERS OF QUICKFLY RIGGING SYSTEMS SHOULD BE PREPARED TO TAKE ADDITIONAL SAFETY AS
SURANCE MEASURES BEYOND THOSE OUTLINED IN THIS MANUAL. IN ALL CASES, IT IS THE RESPONSIBILITY OF THE
USER TO MAKE CERTAIN THAT ANY MEYER SOUND LOUDSPEAKER SYSTEM IS SUSPENDED IN ACCORDANCE WITH
ALL APPLICABLE NATIONAL/FEDERAL, STATE/PROVINCIAL, AND LOCAL REGULATIONS.
-
Meyer Sound Laboratories Inc.
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Page 5 of 32
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
SAFETY RESPONSIBILITIES “ABOVE THE HOOK”
In most touring applications of rigging systems, the touring sound provider is normally responsible for ensuring the safety of
the suspension system only below the attachment point. The safety and suitability of the attachment point is generally seen
as the responsibility of the venue owner or operator. However, this distinction (“above the hook” versus “below the hook”)
can be open to interpretation. Touring system operators should double-check to make certain that attachment points are
approved and suitably load rated, and that the points used are those identified as such by the venue owner or operator. AS
AN EXTRA PRECAUTION, CAREFUL INSPECTION OF THE ATTACHMENT POINTS IS ADVISED BEFORE FLYING, PARTICU
LARLY IN OLDER VENUES OR THOSE HOSTING FREQUENT EVENTS USING LARGE SOUND AND LIGHTING SYSTEMS.
In any case, Meyer Sound QuickFly systems are intended only for suspension from approved rigging points, each known to
have ample SWL margins for the system components suspended below them.
INSPECTION AND MAINTENANCE
The Meyer Sound QuickFly systems are an assembly of mechanical devices, and are therefore subject to wear and tear over
prolonged use, as well as damage from corrosive agents, extreme impact, or inappropriate use.
BECAUSE OF THE SAFETY ISSUES INVOLVED, USERS MUST ADOPT AND ADHERE TO A SCHEDULE OF REGULAR IN
SPECTION AND MAINTENANCE. IN TOURING APPLICATIONS, KEY COMPONENTS MUST BE INSPECTED BEFORE EACH
USE.
Such inspection includes examination of all load-bearing components for any sign of undue wear, twisting, buckling,
cracking, rusting, or other corrosion. In regard to rust and corrosion, the main components of a QuickFly system are either
protected by an exterior coating or made from stainless steel, which is impervious to rust and resistant to most corrosive
fluids. Nevertheless, normal use and shipping vibrations can wear through the protective coatings, and extremely corrosive
fluids (such as battery acid) can cause severe damage with prolonged exposure even to protected parts. Particular attention should be given to screws, bolts, and other fasteners to make certain the fittings are tight and secure. Metal seams and
welds should be examined for any sign of separation or deformation. Meyer Sound strongly recommends that written documentation be maintained on each QuickFly system, noting date of inspection, name of inspector, points of system checked,
and any anomalies discovered.
-
-
Annual Comprehensive Examination and Test Program
In addition to routine checks on the road for touring systems, Meyer Sound also recommends a careful, comprehensive
system examination and testing “at home” in the warehouse or other appropriate location at regular intervals. Such at home
examinations and tests should occur at least once a year, and should include a careful inspection of each component under
ideal lighting conditions, and then a final comprehensive check of the entire system after it has been flown.
If any anomalies or defects are discovered that could possibly affect the safety or integrity of the system, affected parts or
subsystems should be replaced in their entirety before that part of the system is flown again.
REPLACEMENT PARTS
Any component found to be defective, or any safety-related component you even suspect might be defective, should be replaced with the equivalent, approved part. Parts specific to a QuickFly system should be ordered directly from Meyer Sound.
No attempt should be made to substitute what appears to be equivalent or “mostly the same” generic replacements. Some
parts used in QuickFly systems are identical to those used in other rigging applications. To the best of our knowledge, most
of these suppliers are reputable and their products are reliable. However, Meyer Sound has no way of assuring the quality of
products made by these various suppliers. Therefore, Meyer Sound is not responsible for problems caused by components
that were not supplied by Meyer Sound.
TRAINING
QuickFly systems are relatively straightforward and easy to use. However, they should only be used by persons trained in the
use of loudspeaker rigging systems who have mastered key points of assembly, rigging and flying. Users should read this
manual in its entirety before attempting to deploy any QuickFly system. You may make additional copies of this manual as
necessary for in-house use; copies may not be made for any other purpose.
Meyer Sound Laboratories Inc.
www.meyersound.com
T: +1 510 486.1166
F: +1 510 486.8356
PN: 05.132.036.01 B2
Page 6 of 32
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
MG-3D/M MULTIPURPOSE GRID OVERVIEW
The MG-3D/M multipurpose grid allows multiple MILO® high-power curvilinear array loudspeakers and/or M3D line
array loudspeakers (or M3D-Sub directional subwoofers) to be flown or ground-supported in numerous configurations.
List of Contents: MG-3D/M Multipurpose Grid Kit (Part 40.132.035.01)
Required for use with MILO loudspeaker(s)
Qty Part Number Description
1 40.132.035.01 MG-3D/M Multipurpose Grid Assembly
4 124.078 Stainless Steel Leveling Foot
MG-3D/M Multipurpose Grid Dimensions:
MG-3D/M Multipurpose Grid Weight: 275 lbs (124.74 kg)
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Page 7 of 32
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
LOAD RATINGS OVERVIEW
The MG-3D/M multipurpose grid can accommodate a variety of different pickup configurations using its six pickup points (three on each side of the frame). All of the load ratings in this assembly guide take the following into
consideration:
The angle of the bridle at the apex is no greater than 90 degrees.
The weight of the MG-3D/M grid itself has been included.
The maximum number of MILO loudspeakers that may be hung in each configuration is based on the MILO weight
of 235 lbs (106.60 kg).
The maximum number of M3D/M3D-Sub loudspeakers that may be hung is based on the M3D weight of 415 lbs
(188.24 kg) and the M3D-Sub weight of 395 lbs (179.17 kg).
The load ratings and maximum weights allowed regard the MG-3D/M grid and flown loudspeakers as a system,
including links and pins. Thus, the maximum stress point could change from one element to another in the system.
CAUTION: Using a bridle leg shorter than the recommended length for each configuration will reduce
the load rating and may damage the MG-3D/M grid.
CAUTION: Always use properly rated rigging hardware. The use of 3/4" shackles for the MG-3D/M
grid's pick-up points is recommended.
When flying an array of loudspeakers as discussed in this guide, the entire weight of the array can shift completely to
either the front or back motor or set of motors; the degree of shift depends on the splay between individual cabinets
in the array, the number of cabinets, and the angle of the MG-3D/M grid. Accordingly, this guide rates the MG-3D/M
rigging system for the "worst case" loadings that can occur at the final trim of an array while maintaining a 5:1 or 7:1
safety factor. Configurations using angled bridles are shown with an angle at the apex of 90 degrees, resulting in the two
angles between the bridle and MG-3D/M grid at the prescribed bridle length (45 degrees each).
With the use of transition accessories, you can also integrate other M Series loudspeakers with MILO or M3D/M3DSub loudspeakers, to form combined arrays such as:
M3D/M3D-Sub and MILO
MILO and M2D
M3D and M2D
M3D, MILO and M2D
CAUTION: The weight of any additional items hung with the array, such as downfill loudspeakers and
transition accessories and cable, must be considered when calculating maximum load.
Meyer Sound Laboratories Inc.
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T: +1 510 486.1166
F: +1 510 486.8356
PN: 05.132.036.01 B2
Page 8 of 32
2. USING MILO WITH THE MG-3D/M GRID
MILO SYSTEM LOAD RATINGS AND PICKUP CONFIGURATIONS
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
Using
one or both center pickup points
Figure 2.1. 2 to 2 center point configuration Figure 2.2. 2 to 1 center point configuration
Figure 2.4. 3 to 2 corner/center point configurationFigure 2.3. 3 to 2 center/corner point configuration
Max. Suspended Weight and Quantity of MILO Loudspeakers, Using Center Pickup Points
Grid Tilt
in Degrees
±0 to 45 3 ft
±46 to 90 3 ft
Meyer Sound Laboratories Inc.
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Min. Bridle
Leg Length
(915 mm)
(915 mm)
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5:1 Safety Factor 7:1 Safety Factor
Max. Weight
4700 lbs
(2131 kg)
3570 lbs
(1619 kg)
Max. Quantity Max. Weight Max. Quantity
18 (see note 1
on page 11)
14 2700 lbs
3350 lbs
(1520 kg)
(1225 kg)
13 (see note 1
on page 11)
10
PN: 05.132.036.01 B2
Page 9 of 32
MG-3D/M MULTIPURPOSE GRID AND ACCESSORIES
MILO SYSTEM LOAD RATINGS AND PICKUP CONFIGURATIONS
Using all four corner pickup points
Figure 2.5. 4 to 2 corner point configuration Figure 2.6. 4 to 4 corner point configuration
Figure 2.7. 4 to 2 corner cross point configuration
Figure 2.8. 4 to 1 corner point configuration
Max. Suspended Weight and Quantity of MILO Loudspeakers, Using Corner Pickup Points
Grid Tilt
in Degrees
±0 to 45 3 ft (915 mm)
±46 to 90 3 ft (915 mm)
1
Please note that the bridle legs are not required in this configuration; the motors can be connected directly to
Min. Bridle
Leg Length
2
2
5:1 Safety Factor 7:1 Safety Factor
Max. Weight
6000 lbs
(2722 kg)
3570 lbs
(1619 kg)
Max. Quantity Max. Weight Max. Quantity
24
5250 lbs
(2381 kg)
14 2700 lbs
(1225 kg)
21 (see note 2
on page 11)
10
the MG-3D/M grid using shackles.
2
The minimum bridle leg length for the 4 to 1 corner point configuration is 4 ft (1219 mm).
1
2
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Page 10 of 32
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