THORLABS GCM102, GCM102/M User Manual

GCM102(/M)
30 mm Cage System Mount

For Small Beam Diameter Galvos

User Guide

Original Instructions

HA 0371T

GCM102(/M) 30 mm Cage System Mount for GVSx02 Series Galvos

Contents

Chaper 1 Overview ..................................................................................................... 1

1.1 Description ......................................................................................... 1

Chaper 2 Safety .......................................................................................................... 2

2.1 Safety Information .................. ............................ ............................ ... 2

Chaper 3 Installation .................................................................................................. 3

3.1 Installing the Galvo Motors ............................................................... 3

3.2 Fitting the Optics and Adapters ....................................................... 8

3.3 Using the Cage Mount with Other Equipment ............................... 11

3.3.1 Mounting to a 1.5” Diameter Post ......................................................... 11

3.3.2 Mounting to 66 mm Rail Components .................................................. 12

Chaper 4 Thorlabs Worldwide Contacts ................................................................ 14

Chapter 1 Overview

Chapter 1 Overview

1.1 Description

The GCM102(/M) cage system adapter is used to mount the GVSX02 dual-axis galvo
systems into a 30 mm cage system. The galvo motors can be fitted and aligned
without dismantling the mount

On the beam input side, the mount features SM1 and SM05 threads for mounting lens
tubes. The output side is th readed SM2, which can be converted to M25 x 0.75 by
fitting the GCMA1 or SM2A33 adapters. The mounting face features an array of M6,
M4 and M3 (1/4-20, 4-40 and 8-32 UNC) threaded holes for use in mounting to our
range of 1.5 OD posts, and XT66 construction rails.

Note: The input and output beams are on different planes. Cage systems should be
adapted accordingly.

Fig. 1.1 GCM102 Cage Mount, post mounted with lens and cage rods fitted

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Page 1

GCM102(/M) 30 mm Cage System Mount for GVSx02 Series Galvos

Chapter 2 Safety

2.1 Safety Information

For the continuing safety of the operators of this equipment, and the protection of the

equipment itself, the operator should take note of the Warnings, Cautions and Notes

throughout this handbook and, where visible, on the product itself.

The following safety symb ols may be used throughout the handbook and on the
equipment itself.

Warning: Risk of Electrical Shock

Given when there is a risk of injury from electrical shock.

Warning

Given when there is a risk of injury to users.

Caution

Given when there is a risk of damage to the product.

Note

Clarification of an instruction or additional information.

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Chapter 3 Installation

Removing the blanking plugs

Loosening the motor clamp bolts

Chapter 3 Installation

3.1 Installing the Galvo Motors

1) Using a 2.5 mm hex key, loosen the pinch bolts on the existing mount, and remove
the motor/mirror assemblies. Leave the spacers fitted to the motors and retain the
insulating film for later use. Take care not to touch the mirror surfaces.

2) Once removed, check that the the rmal insulation film is u ndamaged. Damaged
material should be discarded. Replacement film is supplied with the cage mount.

Fig. 3.1 Removing Motor/Mirror Assemblies

3) Using a 3 mm (1/8”) hex key, remove the blanking plugs from the body of the
GCM102(/M) Cage Mount, to gain access to the motor clamp.
Using a 2mm ( 5/64”) hex key, loosen the clamp bolts.

Fig. 3.2 Loosening the motor clamp bolts

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GCM102(/M) 30 mm Cage System Mount for GVSx02 Series Galvos

4) Position the cage mount assembly as shown in Fig. 3.3 and using a 2 mm (5/64”)
hex key, remove the screws securing the small gasket cover. Remove the gasket
cover, then remove the screws securing the large gasket cover.

Fig. 3.3 Removing the Gasket Covers

5) Position the cage mount assembly as shown in Fig. 3.4 and using a 2 mm (5/64”)
hex key, remove the remain ing screws se curing the large gasket cover, then
remove the gasket cover.

Fig. 3.4 Removing the Gasket Covers

6) Position the cage mount as shown in Fig. 3.5, with the fixed side of the gasket to
the left. Slide the large spacer underneath the gasket then pull the gasket over the

Page 4 ETN032532-D02

Chapter 3 Installation

spacer such that it pushes through the hole in the gasket, and the gasket fits tights
around the sides of the spacer..

Fig. 3.5 Inserting the Large Spacer

7) Reposition the cage mount as shown in Fig 3.6, and in sert the small spa cer

underneath the gasket. Pull the gasket over the spacer such that it pushes through
the hole in the gasket, and the gasket fits tights around the sides of the spacer.

Fig. 3.6 Inserting the Small Spacer

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Page 5

GCM102(/M) 30 mm Cage System Mount for GVSx02 Series Galvos

Detail A

Detail B

8) Roll up the thermal insulation film into a small tube shape and insert into the motor
mounting holes as shown below. Ensure the film is pushed fully into the hole.

Fig. 3.7 Fitting the thermal insulation film

9) Place the cage adapter body on the worksurface as shown below, with the
engraving on the left, and the large open face facing away and to the right.

Fig. 3.8 Inserting the Motors

10) Identify the X-Axis motor assembly. This is the motor with the smallest mirror and
the serial number label has a suffix ‘-X’.

11) Insert the motor into the lower mount on the left hand side - see Fig. 3.8 Detail A.

Caution. Ensure that the wide spacer and the thermal insulation detailed
previously are fitted. The X-axis mirror will be misaligned without the wide
spacer. The clamp pinch bolts will not tighten sufficiently without the
thermal insulation material.

Gently twist the motor bod y as it is pu shed into the clamp, ta king care not to
damage the thermal insulation material.

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Chapter 3 Installation

12) Ensure that the narrow plastic spacer removed at item (1) is fitted to the remaining

mounting hole, then insert the Y-axis motor into the upper mount on the right hand
side- see Fig. 3.8 Detail B.

Caution. Ensure that the thermal insulation detailed at item (4) is fitted. The
clamp pinch bolts will not tighten sufficiently without this material.

Gently twist the motor bo dy as it i s pushed into the clamp, taking care not to
damage the thermal insulation material.

13) Ensure that the motors are pushed fully into the moun ting holes, then turn the

motors to be aligned as shown in Fig. 3.9. The left hand (X-Axis) motor connector
should point to the right hand side. The right hand (Y-Axis) connector should point
downwards. Check through the large open face that the mirror alignment is as
shown below.

Fig. 3.9 Aligning the motors

14) Using a 2 mm (5/64”) hex key, tighten the pinch bolts on the clamps as shown below.

Fig. 3.10 Tightening the pinch bolts

15) Using a 3 mm (1/8”) hex key, refit the blanking plugs.

16) The system is now ready to be m ounted into a cage system, however further

adjustment of the motor posi tions may be nece ssary to fine tune the mirror
alignment within the application.

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Page 7

GCM102(/M) 30 mm Cage System Mount for GVSx02 Series Galvos

Distance from
input axis to
reference face
of lens

11.0 mm (0.43”)

GCMA1
screwed down to
bottom face

3.2 Fitting the Optics and Adapters

A range optics can be fitted to the GCM102(/M) using various adapters as detailed
below.

Scan

Optic Thread

Distance

(mm)

LSM02 M25 x 0.75 16 3 GCMA1
LSM03 M25 x 0.75 19 6 GCMA1 (reverse fitted)
LSM04 M25 x 0.75 19 6 GCMA1 (reverse fitted)
LSM03-VIS M25 x 0.75 29 16 SM2A33 and SM2L03
LSM05 SM2 75 62 SM2L20
CLS-SL SM2 58 46 SM2L05 and SM2V05

Distance from

start of SM2
thread (mm)

Adapter Required

Page 8 ETN032532-D02

Fig. 3.11 Fitting the LSM02

Fig. 3.12 Fitting the LSM03 and LSM04

Distance from
input axis to
reference face
of lens

14.0 mm (0.55”)

GCMA1 inverted
and screwed down
to bottom face

GCMA1 inverted

Distance from
input axis to
reference face
of lens

24.3 mm (0.96”)

SM2L03
screwed down
to bottom face

SM2A33

Chapter 3 Installation

Rev B Jan 2018

Fig. 3.13 Fitting the LSM03-VIS

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GCM102(/M) 30 mm Cage System Mount for GVSx02 Series Galvos

Distance from
input axis to
reference face
of lens

70.1 mm (2.76”)

SM2L20
screwed
down to
bottom face

Distance from
input axis to
reference face
of lens

53.1 mm (2.09”)

SM2V05 screwed

down around 5 mm

Lock Nut

SM2L05 screwed

down to SM2V05

Fig. 3.14 Fitting the LSM05

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Fig. 3.15 Fitting the CLS-SL

Chapter 3 Installation

29.0 mm
[1.14”]

63.8 mm
[2.51”]

C1511
Mounting Clamp

M6 [1/4-20] Cap Screw

6.0 or 10.0 [1/4” or 3/8”] Long

M4 [8-32] Cap Screw

6.0 mm [1/4”] Long

M4 [8-32] Cap Screw

6.0 mm [1/4”] Long

1.5” Dia Post
(e.g. DP8A)

Mounting Option 1

Mounting Option 2

3.3 Using the Cage Mount with Other Equipment

The GCM102(/M) can be used in conjunction with various posts, rails and accessories
available from Thorlabs as follows.

3.3.1 Mounting to a 1.5” Diameter Post

Fig. 3.16 Mounting the GCM102 to a 1.5” Diameter Post

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GCM102(/M) 30 mm Cage System Mount for GVSx02 Series Galvos

36.0 mm
[1.44”]

69.6 mm
[2.74”]

XT66
Construction Rail

M6 [1/4-20] Cap Screw

6.0 or 8.0 mm [1/4” or 5/16”] Long

M3 [4-40] Cap Screws, Qty 2

6.0 or 8.0 mm [1/4” or 5/16”] Long

XT66P2
Rail Carriage

3.3.2 Mounting to 66 mm Rail Components

Fig. 3.17 Mounting the GCM102 to an XT66 Construction Rail

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Chapter 3 Installation

XT66
Construction Rail

SH6M10LP [SH25LP38]
M6 [1/4-20] Low Profile Channel Screws

XT66RC
Pivot Platform

46.1 mm
[1.82”]

79.2 mm
[3.12”]

6.5 mm
[0.26”]

Fig. 3.18 Mounting the GCM102 to an XT66RC Pivot Platform

Rev B Jan 2018

Page 13

Chapter  Thorlabs Worldwide Contacts

USA, Canada, and South America

Thorlabs, Inc.
56 Sparta Avenue
Newton, NJ 07860
USA
Tel: [phone]
Fax: [phone]
www.thorlabs.com
www.thorlabs.us (West Coast)
Email: [e-mail]
Support: [e-mail]

Europe

Thorlabs GmbH
Hans-Böckler-Str. 6
85221 Dachau / Munich
Germany
Tel: [phone]
Fax: [phone]
www.thorlabs.de
Email: [e-mail]

France

Thorlabs SAS

rue des Côtes

109,
78600 Maisons-Laffitte
France
Tel: [phone]
Fax: [phone]
www.thorlabs.com
Email: [e-mail]

UK and Ireland

Thorlabs Ltd.
1 Saint Thomas Place
Ely B7 4EX
Great Britain
Tel: [phone]
Fax: [phone]
www.thorlabs.com
Email: [e-mail]
Support: [e-mail]

Scandinavia

Thorlabs Sweden AB
Bergfotsgatan 7
431 35 Mölndal
Sweden
Tel: [phone]
Fax: [phone]
www.thorlabs.com
Email: [e-mail]

Brazil
Thorlabs Vendas de Fotônicos Ltda.
Rua Riachuelo, 171
São Carlos, SP 13560-110
Brazil
Tel: [phone]
Fax: [phone]
www.thorlabs.com
Email: [e-mail]

Japan

Thorlabs Japan, Inc.
3-6-3, Kitamachi,
Nerima-ku, Tokyo 179-0081
Japan
Tel: [phone]
Fax: [phone]
www.thorlabs.co.jp
Email: [e-mail]

Page 14

China
Thorlabs China
Room A101, No. 100, Lane 2891
South Qilianshan Road
Putuo District
Shanghai
China
Tel: [phone]
Fax: [phone]
www.thorlabschina.cn
Email: [e-mail]

www.thorlabs.com