SainSmart Genmitsu 4040-PRO CNC Router User manual

4040-PROCNCルーターキット
V1.0 Oct. 2022
USER MANUAL
Genmitsu
4040-PRO CNC Router Kits
4040-PRO CNC Fräse
English
日本語
01 - 33
Deutsch
71 - 103
35 - 69
BENUTZERHANDBUCH
取
扱
説
明
書

Welcome
Disclaimer
Specifications
Part 1- Unboxing & Checking Package Contents
Part 2- Mechanical Installation
Part 3- Wiring
Part 4- Software Setup
Part 5- Test Project
Part 6- Z Probe Setup
01
02
03
04
07
21
25
28
31
Contents

Welcome
01
Thank you for purchasing the Genmitsu 4040-PRO CNC Router from SainSmart.
All your setup materials are located on the included USB Drive, located in your accessories box. Inside you will
find:
● PDF version of this manual
● Windows USB Driver
● GrbIControl/Candle software for Windows
● Sample files
Please visit SainSmart Online Resource Center or further help installing drivers and software for your CNC.
https://docs.sainsmart.com/4040-pro
The drivers and software can also be found on the included USB drive.
For technical support, please email us at [email protected]
Help and support is also available from our Facebook group. (SainSmart Genmitsu CNC Users Group)
Scan QR code
to join the group

Please be careful when using your CNC machine. This machine is an electrical device with moving parts and
dangerous working areas.
● Genmitsu CNC Machines are for Indoor Use Only.
● You must be 18 years or older to operate this machine, unless supervised by a knowledgeable adult familiar
with the machine.
● Wear proper Personal Protection Equipment (Safety Glasses etc.).
● Always place the CNC Machine on a stable surface.
● Ensure the Emergency Stop Button is easily accessible at all times.
● Never disassemble the Power Supply or Electrical Components. This will VOID the warranty.
● DO NOT TOUCH the machine spindle, or place any body part near the working area when the machine is
operating. Serious injury may occur.
● DO NOT leave children or pets unsupervised with the CNC Machine even when it's not operating. Injury
may occur.
● DO NOT leave the machine unattended while it's operating.
● Ensure your CNC Machine is in a well-ventilated area. Some Materials may discharge smoke or fumes
during operation.
Disclaimer
02

Specifications
03
Model Name
Work Area
Overall Dimensions
Control Board Compatibility
MicroStep
MCU
Max Speed
CAM Software
Frame Material
Leadscrew
Control Software
Motion System
Spindle Motor
Stepper Motor
Power Supply
4040-PRO CNC Router
400 x 400 x 78mm (15.75” x 15.75” x 3.07”)
650 x 675 x 325mm (25.59” x 26.57” x 12.80”)
GRBL 1.1f
16
32-Bit
2000mm/min
Carveco Maker, Easel and many more
All Aluminum
X&Y Axis ACME T10(10mm), Pitch: 2mm, Lead: 4mm
Z Axis ACME T8(8mm), Pitch: 2mm, Lead: 4mm
GrblControl (Candle), UGS
Screw- Driven
775 motor, 24V, 9000RPM
NEMA 17, 1.68A, 0.45Nm torque
24V/4A

Part 1- Unboxing & Checking Package Contents
04
Front Module
1Y-axis Module (Left) 3Y-axis Module (Right) 4
X-axis Module
5Z-axis Module
(with Spindle)
6(2) MDF Board
7Z-axis Cable Mount
8
Allen Wrench Set,
3mm,4mm
13 (3) M3*8 Phillips Screw
14 Phillips Screwdriver
15 (10) Cable Tie 3*80 16
Rear Module
2
(9) Locating Pin
9(29) M5*20mm Bolt
10 (9) M5*18mm Bolt
11 (5) M5*16mm Bolt 12

05
(2) Cable Tie 4*200
17 Power Supply 18 Power Cord (US) 19 Power Cord (EU) 20
USB Cable
21 Z-Probe Kit 22 USB Drive
23 Work Clamp Set
24
ER11 4mm Collet
ER11 1/8" Collet
25 (3) 30-degree V Bit
26
User Manual
30
(4) Rubber Feet
29
(2) Limit Switch
(spare)
28
Wrench
27

06
Optional Accessories (Not Included)
Consider following optional upgrades or accessories to make your CNC experience better!
You can find them and more at www.sainsmart.com. Save 10% with discount code 4040UM.
T-Track Mini Hold
Down Clamp Kit (×2)
Compressed Spot
Fixed Focus FAC
Laser Module
Dust Shoe CNC Router Bits
Scan QR codes to learn more

Part 2- Mechanical Installation
07
Step 1: Preparing the machine for assembly
What you will need
1. Go through the parts list above. Ensure you have all the parts included listed in the packing list. If you are missing
anything, or something is damaged, please contact [email protected] assembly ensure all surfaces and
holes are clear and free of any packing materials.
2. Make sure the front and rear modules are clean.
3. As shown in the picture, stick the rubber feet on the bottom grooves of the left and right ends of the front and rear
modules respectively.
4. Then place the modules on a flat table as shown.
Front Module
1Rear Module
2(4) Rubber Feet 29
Front Module
Rear Module
Bottom Groove
(4) Rubber Feet

08
Step 2: Installing the MDF Spoilboard
What you will need
1. Following the diagram below, align the holes of the MDF spoilboard with the screw holes in the front and rear module,
with the recesses at the top, then loosely screw into place with the (12) M5*20 screws.
(DO NOT TIGHTEN ALL THE WAY, allow for small movement between the MDF spoilboard and the front and rear
module until later.)
2. As shown in the diagram, insert 8 of the locating pins into the corresponding holes on the front and rear modules
respectively. (When inserting the locating pins in the rear module, take care to avoid the wire in its middle square hole to
avoid any damage to the wire)
(2) MDF Board
7Allen Wrench Set (4mm)
13
(8) Locating Pin
9(12) M5*20mm Bolt
10
Locating Pins
Locating Pins
Locating Pins
Locating Pins
(12) M5*20mm Bolt
Cable
Locating Pin

09
Step 3: Installing the Y-axis Module
What you will need
1. Following the diagram, align each of the 4 locating pin holes on the left module with the corresponding locating pins
and slowly move the module downward. Allow the locating pins to pass completely through the locating pin holes in the
module and continue to push down on the module until it is fully seated on the front and rear modules.
2. Repeat Step 1. for the right module.
3. As shown in the diagram, insert all the M5*20 screws through the screw holes on the left module and right module
into their corresponding screw positions, then tighten them securely with the Allen wrench.
4. Then tighten the MDF spoilboard screws inserted in step 2. Make sure there is no gap between the spoilboard Halves.
Allen Wrench
Set (4mm)
13
(16) M5*20mm Bolt
10
Y-axis Module (Left)
3Y-axis Module (Right) 4
Locating Pin
Y-axis Module (Left)
Y-axis Module (Right)
M5*20mm Bolt M5*20mm Bolt
Locating Pin Hole
Locating Pin

10
5. Slowly rotate the manual jog wheels on the Y-axis left and right modules until the Y-Axis Blocks are touching the rear
retaining bases.
Y-axis Block
Y-axis Block
Y-axis Module (Right)
Manual Jog Wheel
Y-axis Block
Retaining Base
Y-axis
Module (Left)

11
Step 4: Installing the X-axis Module
What you will need
1. Align the holes of the X-axis module with the corresponding screw holes on the Y-axis left and right module, slowly
move the X-axis module downward, as shown in the diagram below, make sure that the raised part of the sliders on the
left and right Y axis modules are fully seated in the grooves under the X-axis modules.
2. Tighten the M5*18 screws through the holes on the X-axis module into the corresponding screw holes on the Y-axis
left module and Y-axis right module, and tighten them with an Allen wrench.
X-axis Module
5(8) M5*18mm Bolt
11 Allen Wrench Set (4mm)
13
Y-axis Block
Y-axis Block
(4) M5*18mm Bolt
(4) M5*18mm Bolt Groove of the X-axis Modules
Raised Part
of the Slider
The Raised Part is Fully
Seated in the Groove

12
Z-axis Module
(with Spindle)
6
Step 5: Installing the Z-axis Module
What you will need
1. Unscrew the black collet collar from the spindle and insert the collet at an angle, then push firmly into place while
straightening to seat the ring on the collet into the nut. Make sure the collet is locked in place, then screw the collar back
onto the spindle.
Allen Wrench
Set (3mm)
13
(4) M5*16mm Bolt
12 ER11 4mm Collet
25 Wrench 27

13
2. Insert the M5*16 screws through the holes of the XZ Axis Assembly to the corresponding screw holes of the X-axis
slider. Then screw them using the 3mm Allen wrench. You could install the screws on the first and third holes or the
second and fourth holes which makes a 30mm difference in the motor height. If using thin materials use the first and third
holes, for thicker materials use the second and fourth.
(4) M5*16mm Bolt
(4) M5*16mm Bolt
X-axis Block

14
Step 6: Installing the Z-axis Cable Mount
What you will need
1. Screw the M3*8 screws through the holes in the Z-axis cable mount and screw them into the corresponding holes in
the Z-axis module, and tighten the screws with a Phillips screwdriver.
Z-axis Cable Mount
8(2) M3*8 Phillips Screw
14 Phillips Screwdriver
15
Z-axis Cable Mount
M3*8mm Phillips Screw

15
Step 7: Secure the CNC Machine to your workbench or table. (Optional)
Method 1:
1. Prepare 4 pieces of M6 screws, 4 pieces of M6 flat washer, 4 pieces of M6 nuts. The length of the screws depends on
the thickness of your table.
2. Drill 4 holes with 8mm diameter on the table according to the location of the fixing holes on the machine.
Desktop Fixing with Hole
Desktop Fixing with Hole
M6 screws

16
3. Insert M6 screws through the holes in the machine and table, add spacers and secured with nuts to the exposed bolts
at the bottom of table respectively.
Note: When putting the screws through the two holes in the rear module used to fix the machine on the table, remember
to avoid the cables inside the rear module, otherwise it may damage the cables inside.
M6 Nut
M6 flat washer M6 flat washer
M6 Nut
Hole
Bolt
Cables Rear Module M6 Bolt
M6 flat washer
M6 Nut

17
Method 2 (This method may reduce the accuracy of the machine)
1. Remove the base part of the machine.
2. Drill 16 holes with 7mm diameter on the table according to the location of the holes on the machine.
3. Prepare 16 pieces of M5 screws, 16 pieces of M5 flat washer, 16 pieces of M5 nuts. The length of the screws depends
on the thickness of your table.
4. Insert M5 screws through the holes in the machine and table, add spacers and secured with nuts to the exposed bolts
at the bottom of table respectively.
Machine mount
(16) 7mm Through Holes
M5 Bolt

18
Step 8: Change the Spindle Holder (Optional)
There needs to be a separate section for mounting 52mm motors and the SainSmart lasers. Or it could be incorporated
here.
This machine is compatible with 52mm motors and by changing the spindle holder 65mm and 69mm trimmer routers such
as Makita 65mm trimmer router and DEWALT 69mm trimmer router, by changing the spindle holder, You need to order
these compatible spindle holders separately.
1. Firstly, loosen the spindle motor fixing screw on the original spindle clamp base and remove the spindle motor and its
washer.
2. As shown in the picture, remove the 4 set screws on both sides of the original spindle holder.
Spindle Motor
and Washer
Spindle Holder
Set Screw
Original
Spindle Holder