EDUCATIONAL ROBOT
ROBOT ARM CHASSIS
MOUNTING INSTRUCTIONS: Model RA2-CH2
© AREXX - THE NETHERLANDS V0513
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Table of Contents
1. Product description ROBOT ARM 5
2. Required tools 7
3. Part list 8
4. Mounting instructions 10
AREXX and ROBOT ARM are registered trademarks of AREXX Engineering - HOLLAND.
© English translation (March 2013): AREXX Engineering (NL).
This manual is protected by laws of Copyright. Any full or partial reproduction of the contents are forbidden without prior written authorization by the European importer. :
AREXX Engineering - Zwolle (NL).
Manufacturer and distributor cannot be held responible for any damage resulting from mishandling, mounting
mistakes or disrespect of the instructions contained in the manual.
Subject to changes without prior notice.
Technical mounting support:
WWW.AREXX.COM
Manufacturer:
AREXX Engineering
DAGU HI-TECH
European importer:
AREXX Engineering
ZWOLLE The Netherlands
© AREXX Holland and DAGU China
© English translation: AREXX - The Netherlands
WWW.ROBOTERNETZ.DE
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Impressum
©2007 AREXX Engineering
Nervistraat 16
8013 RS Zwolle
The Netherlands
Tel.: +31 (0) 38 454 2028
Fax.: +31 (0) 38 452 4482
E-Mail: Info@arexx.nl
“Robot Arm PRO und -Hobby” are registered trademarks from AREXX Engineering.
All other trademark are the property of their owners. We are not responsible for the
contents of external web pages that are mentioned in this manual!
Information about limited warranty and responsibility
The warranty granted by AREXX Engineering is limited to the replacement or repair of the
Robot Arm and its accessories within the legal warranty period if the default has arisen from
production errors such as mechanical damage or missing or wrong assembly of electronic
components except for all components that are connected via plugs/sockets.
The warranty does not apply directly or indirectly to damages due to the use of the robot.
This excludes claims that fall under the legal prescription of product responsibility.
The warranty does not apply in case of irreversible changes (such as soldering of other
components, drilling of holes, etc.) of the Robot Arm or its accessories or if the Robot Arm
is damaged due to the disrespect of this manual!
The warranty is not applicable in case of disrespect of this manual! In addition, AREXX
Engineering is not responsible for damages of all kinds resulting from the disrespect of this
manual! Please adhere above all to the „Safety recommendations“ in the Robot Arm
manual.
Please note the relevant license agreements on the CD-ROM!
This manual is protected by the laws of Copyright. It is
forbidden to copy all or part of the contents without prior
written authorization!
Product specications and delivery contents are subject to
changes. The manual is subject to changes without prior
notice.
You can nd free updates of this manual on
http://www.arexx.com/
IMPORTANT
Prior to using this robot arm for the rst time, please read this manua thoroughly up to the
end! They explain the correct use and inform you about potential dangers! Moreover they
contain important information that might not be obvious for all users.
Important safety recommendation
This module is equipped with highly sensitive components. Electronic components are
very sensitive to static electricity discharge. Only touch the module by the edges and avoid
direct contact with the components on the circuit board. Please do never overload the servo’s
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Symbols
This manual provides the following symbols:
The “Attention!” Symbol is used to mark important details.
Neglecting these precautions may damage or destroy the ro
bot and/or additional components and additionally you may
risk your own health or the health of other persons!
The “Information” Symbol is used to mark useful tips and
tricks or background information. In this case the informa
tion is to be considered as “useful, but not necessary”.
-
Safety recommendations
- Check the polarity of the batteries or power supply.
- Keep all products dry, when the product gets wet remove the batteries or power directly.
- Remove the batteries or power when you are not using the product for a longer period.
- Before taking the module into operation, always check it and its cables for damage.
- If you have reason to believe that the device can no longer be operated safely,
disconnect it immediately and make sure it is not unintentionally operated.
- Consult an expert if you are unsure as to the function, safety or connection of the module.
- Do not operate the module in rooms or under unfavourable conditions.
- Do not overload the servo’s
- This module is equipped with highly sensitive components. Electronic components are
very sensitive to static electricity discharge. Only touch the module by the edges and avoid
direct contact with the components on the circuit board.
-
Normal use
This product was developed as an experimental platform for all persons which are interested
in robotics. Main goal is to learn how you can program the device in C-langue. This product
is not a toy; it is not suitable for children under 14 years of age!
This robot arm is also not an industrial robot arm, with industrial specications and
preformance!
It may only be used indoors. The product must not get damp or wet. Also be carful with
condence when you take it from a cold to an warm room give it time to adapt on the new
coditions before you use it.
Any use other than that described above can lead to damage to the product and may
involve additional risks such as short circuits, re, electrical shock etc.
Please read all the safety instructions of this manual.
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1. PRODUCT DESCRIPTION ROBOT ARM
The ROBOT ARM is an aordable robot for the hobbyist. It is ideally
suited to learn the basics of electronics, mechanics and programming.
Contents of the package:
- Complete Robot Arm construction set
(mechanics WITHOUT electronics)
- CD-ROM containing all manuals
1.2. Specications:
- 4 mini-servos DGServo 12g
- 2 maxi-servos DGServo S07NF STD
- Plastic arm and metal chassis
- Arm length: 260 mm
- Height: 320 mm
- Base diameter: 150 mm
- Lifting power 75 Gramms
Warnings
* The right of return does not apply after opening the plastic bags containing parts and components.
* Read the manual thoroughly prior to assembling the unit.
* Be careful when handling tools.
* Do not assemble the robot in presence of small children. They can get hurt with the tools
or swallow small components and parts.
* Check the correct polarity of the batteries.
* Make sure that batteries and holder remain always dry. If the ROBOT ARM gets wet, remove the
batteries and dry all parts as thoroughly as possible.
* Remove the batteries if the ROBOT ARM will not be used for more than one week.
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2. Required tools
Needle-nose
pliers
Sidecutter
Screwdriver set
Screwdriver
Selftapping screws (Parker)
Selftapping screws behave like wood screws i.e.
they cut a thread into the material in a rotating
motion that functions like a nut. To this end, this type
of screw has a larger thread and a sharper tip as a
normal screw.
Selftapping screws have a cutout at the top
that makes it easier to drill into the material.
The best way to fasten such a screw is:
If the screws are loosened and tightened too often, the hole enlargens gradually
and the screw doesn’t fit anymore properly.
1 Drive the screw into the material
2 Slightly loosen the screw
3 Tighten the screw again
Double open-end
wrench
IncludedIncluded
2
1
3
Locknut
Fastening a locknut
Locknut
Double open-end wrench:
The set includes a double open-end wrench. Use this
wrench for the M2 and M3 nuts.
You can use this wrench instead of pliers.
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Do not force the screws otherwise
the plastic may crack.
3. PART LIST
Servomotor
O 4 x Mini
DGServo 12g
O 2 x Maxi
DGServo S07NF STD
Disk with
axis
Servo disc
O 4x
Servolever
O 2x
Holder for
maxi-servo
CD
O 1x
Servo holder
-dual
O 1xO 1xO 4x
Spacer for Servo
Spacer
M3x6
O 4x
Cover for maxiservo holder
O 1x
Spacer
M3x30
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O 4x
Cover for
servo holder
O 1xO 2x
Spiral
O 1x
Servo holder
for nger servo
Wrist
O 1x O 1xO 1x
FingertipServo holder
Servo bottom plate
O 1x
Coupling rod
O 1x
Robot Arm base
O 1x
ROBOT ARM CHASSIS
Servo screw
small M2x6
Selftapping screw
M2.3x8
Servo screw
large M2.3x6
Selftapping screw
M2.6x6
Selftapping screw
M3.5x8
O 8x
O-Ring M3
O 3x
O 4x
Round-head
screw M3x6
O 4x
Round-head
screw M3x8
O 8x
O 10x
Round-head screw
M3x10
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O 2x
O 8x
Nut
M3
O 4x
O 4x
Locknut M3
O 4x
4. Mounting instructions mechanical
Mounting the bottom servo:
Following parts are required:
Screw M3x8
M3 Nut
Mounting the servo arm:
Following parts are required:
1x Bottom plate
1x Maxi-servo
4x Round-head screw M3x8
4x Nut M3
Maxi-servo
Fasten the servo exactly as described in the
drawings.
Servo
Bottom plate
1x Bottom plate with servo
1x Servo arm
1x Servo screw large M2.3x6
Servo arm screw
Servo arm
Fasten the servo arm on the servo,
see detailed drawing!
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Mounting the bottom servo:
Following parts are required:
Selftapping screw
M2x6
Mounting the servo holder:
Following parts are required:
Round-head screw M3x8
1x Bottom part
1x Maxi-servo holder
4x Servo screw small M2x6
Maxi-servo holder
Mount the servo holder on the
servo arm, please look at the
detailed drawing!
Bottom plate
1x Bottom plate with servo
holder
1x Disc with axis
1x Round-head screw M3x8
1x Locknut M3
Disc with
axis
Locknut
Mount the servo axis on the servo. Please refer to the detailed drawing!
Servo holder
Bottom plate
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Mounting the servo:
Following parts are required:
1x Assembled bottom plate
1x Servo large
1x Servo spacer
4x Round-head screw M3.5x8
Spacer for the
servo
Servo
IMPORTANT!
Don’t forget the spacer for the
servo!
Bottom plate
Mounting the cover for the servo holder:
Following parts are required:
Selftapping screw
M3x10
Cover
Mount the cover exactly as decribed in
the drawing.
Screw M3.5x8
1x Assembled bottom plate
1x Servo holder cover
1x Selftapping screw
M3x10
Bottom plate
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Mounting the servo arm:
Following parts are required:
1x Assembled bottom plate
1x Servo arm
1x Servo screw large M2.3x6
Servo screw
M2.3x6
Mounting the servo arm:
Following parts are required:
Coupling rod
Servo screw
M2.3x6
Mount the servo arm exactly as described
in the drawing!
Servo arm
Bottom plate
1x Assembled bottom plate
1x Servo coupling rod
1x Servo screw small M2x6
2x Servo screw large M2.3x6
TEST!
Can the rod rotate freely at
180 degrees?
Servo screw
M2x6
Bottom plate
Mount the servo arm exactly as described in the drawing!
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Mounting the dual servo:
For the final assembly of the dual servo, following parts are required:
Round-head screw
M3 x 8
Dual servo holder
Mount the dual servo exactly and in
the same order as described in the
drawing!
Disc with
axis
O-Ring M3
Locknut M3
1x Dual servo holder
2x Disc with axis
2x Round-head screw M3 x 8
2x O-Ring M3
2x Locknut M3
4x Selftapping screw 2.6x6
1x Cover
3x Selftapping screw 2.3x8
2x Servo disc
2x Servo screw small M2x6
2x Servo DGServo 12g
Selftapping screw
2.6x6
Selftapping screw
2.3x8
Cover for dual servo
holder
Dual servo holder
with servos
Dual servo holder
with servos
Miniservo DGServo 12g
Servo disc
Servo screw
M2x6
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Mounting the dual servo holder:
Following parts are required:
Servo screw
M2x6
Servo screw
M2.3x6
Mounting the wrist servo:
Following parts are required:
1x Assembled bottom plate
1x Dual servo holder
2x Servo screw small M2x6
2x Servo screw large M2.3x6
TEST!
Can the dual servo rotate
freely at 180 degrees?
Bottom plate
Mount the dual servo exactly as described
in the drawing.
1x Miniservo DGServo 12g
1x Servo holder wrist
2x Selftapping screw M2.6x6
Selftapping screw
2.6x6
Servo holder
wrist
Mount the wrist servo exactly as described in the drawing.
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Miniservo DGServo 12g
Final assembly of the wrist servo:
Following parts are required:
Assembled wrist
Mount the servo disc exactly as described in the drawing.
1x Assembled wrist
1x Servo disc
1x Servo screw small M2x6
Servo disc
Servo screw M2x6
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Mounting the finger servo holder:
Following parts are required:
Finger servo holder
Assembled wrist
Servo screw M2x6
Mount the finger servo holder exactly as described in the drawing.
Mounting the finger servo holder:
Following parts are required:
1x Assembled wrist
1x Finger servo holder
Wrist assembly
1x Servo disc
1x Screw M3x8
1x O-Ring M3
1x Locknut M3
1x Assembled wrist
1x Finger servo holder
2x Servo screw small M2x6
Finger servo holder
O-Ring M3
Locknut M3
TEST!
Can the wrist rotate freely at
180 degrees?
Mount the servo disc exactly as described in
the drawing.
Round-head screw
M3x8
Servo disc
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Mounting the finger servo:
Following parts are required:
Fasten the servo at the servo holder exactly as
described in the drawing
Selftapping screw M2.6x6
Mounting the finger servo holder:
Following parts are required:
1x Assembled wrist
1x Mini servo DGServo 12g
2x Selftapping screw M2.6x6
Mini servo DGServo 12g
1x Assembled Wrist
1x Servo disc
1x Servo screw small M2x6
Fasten the disc on the servo
exactly as described in the
drawing
Servo screw
M2x6
Assembled
wrist
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Mounting the finger:
Following parts are required:
Mount the finger exactly as described in the
drawing.
Servo screw
M2.3x6
Assembled
wrist
TEST!
Can the finger rotate FREELY?
Final arm assembly:
Following parts are required:
1x Assembled wrist
1x Finger
2x Servo screw small M2x6
2x Servo screw large M2.3x6
Finger
Servo screw
M2x6
1x Assembled wrist
1x Assembled bottom plate
2x Servo screw small M2x6
2x Servo screw large 2.3x6
Assembled
wrist
Servo screw
M2.3x6
Assembled
Bottom plate
Fasten the wrist on the arm exactly as described in
the drawing.
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Servo screw
M2x6
Mounting the base and the PCB:
Following parts are required:
Spacer M3x6
Spacer M3x30
1x Metal base
4x Spacer M3x6
4x Spacer M3x30
Metal base
Base
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Final assembly of the Robot Arm :
Following parts are required:
1x Base assembly
1x ARM assembly
4x Round-head screw M3x6
Round-head screw
M3x6
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There is no PCB included
with the Robot Arm
Chassis
READY !
There is no PCB included
with the Robot Arm
Chassis
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