Snapmaker 2.0 User manual

DISTRIBUTOR
TECHNICAL SUPPORT V 1.0
Troubleshooting Guide for
Snapmaker 2.0 3-in-1 3D Printers

CONTENTS
01 Hardware
02 Touchscreen
02 Touchscreen Shows "not responding"
02 Touchscreen Shows "Fabscreen has stopped"
02 Touchscreen Flashes
03 Touchscreen IsBlack
05 Linear Module
05 Clunk SoundWhileY Axes AreMoving
05 Linear Module Burns out Suddenly
05 Linear Module Only Moves in One Direction
06 Slider(Carriage) of Linear ModuleComesLoose
09 Stainless Steel Strip of Linear ModuleComes Loose
10 3D Printing
10 3DPrinting ModuleIsn't Detected
11 First Layer Doesn't Stick to Print Sheet
12 3D Printing ModulePushes into Print Sheet
13 Filament Runout
14 Filament Won'tLoad
16 Blobs on Nozzle
18 Touchscreen Shows a -30 ℃Nozzle Temp
18 Nozzle Temperature Is Too High
19 Heated Bed Won't Heat up
21 3D Printing Module Clashes against the Print Sheet during Calibration
24 Laser
24 Laser Calibration Fails
25 LaserIs Discontinuous Or Weak

26 Machine IsStuck in Processing during Auto Focus
27 Camera Capture Doesn't Work
29 Laser Module Doesn't Emit Laser
31 Camera Sign Is Yellow onTouchscreen
33 Laser Won't Turn off
35 Laser Won't Burn Material WhenEnclosureIs Used
36 Enclosure
38 Others
38 Power Module Doesn'tWork
38 G-code FileWi-Fi TransferIs Unsuccessful
39 Machine Can't Detect USB Drive
39 None of theToolheadsCan Be Detected by Machine
40 Alternative toUpgrading Machine's Firmware via USB Drive
41 Software
42 Luban Won'tGenerate G-code File
42 Luban Shows "Cannot open this port"
43 Luban Is BlankuponLaunched
45 Luban Shows"The machine is not ready"
46 No Camera Capture Button in Luban
47 Appendix
48 Parts List
50 Specs Sheet

This is a troubleshooting guide that helps you locate where the problem is when you use the Snapmaker 2.0
3-in-1 printer, and tells you what to do to solve it. It's divided into two chapters. The first chapter addresses hard-
ware problems, while the second addresses software problems. To ensure all the glossaries are consistent, a
parts list is included in Appendix, where you can also find product specifications.
If you have tried all the actions delineated in this guide and still aren't able to solve the problem, we are here to
help. Please contact [e-mail] with a detailed description of the problem and a video of your
troubleshooting process, and send a carbon copy (cc.) to your sales representative(           @snapmaker.
com)at Snapmaker.
While we strive to provide correct information, Snapmaker doesn't in any way makes any warranty, express or
implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of the information
disclosed in this guide.
Snapmaker reserves the right to update this document without notice. In the meantime, you might also find the
following resources useful.
• For Quick Start Guides:https://snapmaker.com/product/snapmaker-2/downloads.
• For User Manuals: https://snapmaker.com/product/snapmaker-2/downloads.
• For the latest version of the firmware:
https://snapmaker.com/product/snapmaker-2/downloads.
https://forum.snapmaker.com/t/snapmaker-2-0-firmware-updates-and-downloads/5443/12.
• For the latest version of software:
https://snapmaker.com/product/snapmaker-2/downloads
https://luban.xyz/
https://github.com/Snapmaker/Luban/releases
https://forum.snapmaker.com/t/snapmaker-luban-downloads-and-updates/4949/21.
© 2021 Snapmaker. All Rights Reserved.

| 01
This chapter covers problems with the modules and
addons of the Snapmaker 2.0, which includes the
Enclosure, the Touchscreen, the 3D Printing Module, the
Laser Module, and the Controller. For problems regarding
the Snapmaker Luban, go to the next chapter.
Hardware

02 |
Hardware
Touchscreen
Touchscreen Shows "not responding"
The Touchscreen shows the machine isn't responding, would you like to reconnect.This can happen pre- and
mid-printing.
Possible Causes
• The Controller is broken.
• The Touchscreencable is connected wrongly.
• The Touchscreenitself is broken.
Actions
1. Checkthe condition of the light at the backside of the Controller.Normally it should be breathing steadily.
- If it's not breathing, the Controller might have an issue.Replacing it might solve the problem.
- If it breathes slowly, launch SnapmakerLuban and connectyour computer withthe machineusing a USB
cable.If Luban has no problem connecting with and controlling the machine, then the Controller is fine.
2. If Luban can control the machine, then the Touchscreen cable might be the problem.Unplug the Touchscreen
cable from the Controller,flip the cable connector 180°, and plug it back in. If this doesn't solve the problem,
then the Touchscreen might be the problem.Replacing itmight solve the problem.
Touchscreen Shows "Fabscreen has stopped"
Possible Causes
• There is abug in the firmware.
• G-code file is too large.This usually happens when youtransfer the file from Luban to the machine via Wi-Fi.
• G-code file can't be parsed by the Touchscreen.Thismay happen if the G-code file is generated by a
third-party software that Snapmakerisn't compatible with.
Actions
1. Update the firmware.For the latest version,
visithttps://forum.snapmaker.com/t/snapmaker-2-0-firmware-updates-and-downloads/5443/12.
2. Try a smaller G-code file.
3. Download the latest version of Snapmaker Luban fromhttps://luban.xyz/, and tryto generate the G-code file
on Snapmaker Luban.
Touchscreen Flashes
The Touchscreen flashes as in the video:https://youtu.be/ZwH8v3V9ETo.

| 03
Possible cause
• The Touchscreenmight be broken.
Action
Replace the Touchscreen.
Touchscreen IsBlack
The Touchscreen is black and won't light up.
Possible Causes
• The Touchscreen itself is broken.
• The Controller is broken.
• The Power Module or DC power cable is broken.
Actions
1. Check whether the light at the back of the Controller is breathing.
- If it breathes slowly, launch SnapmakerLuban, andtry to connectyour computer withthe machineusing a
USB cable.If Luban has no problem connecting with and controlling the machine, then the Controller is
fine.In this case, go tostep 2.
- If it's not breathing, then it might be because the Controller, DC power cable, or the Power Moduleisbroken.
In this case, go to step 3.
2. Check whether the Touchscreen cable is connected right. Unplug the Touchscreen cable from the
Controller,flip the cable connector 180°, and plug it back in.
- If this doesn't solve the problem, thenthe Touchscreen is broken. In this case, replacing a new Touchscreen
might solve the problem.
3. Check if the DC power cable and the Power Module work properly.
- If there is no breathing light at the back of the Controller, and Luban can't control the machine, then it might
be because the Controller, DC power cable, or Power Module isn't working properly. In this case, go to step 4.
4. Connect one end of the cable to the Power Module, and turn on the machine. Find a multimeter to measure
the voltage of pin 1 and pin 2 (see picture below) at the same time. The normal value should be between
3.0–3.6 V. Then do the same with pin 1 and pin 4. The normal value should be about 22.8–25.2 V.

04 |
Hardware
- If the test values are normal, then the Power Module and the DC power cable are fine, and the Controller is
the problem. In this case, replacing the Controller might solve the problem.
- If the values arenot normal (pin 1 and pin 4 is 0 V or 3 V,for example), thenreplacing the Power Module and
DC power cable might solve the problem.

| 05
Linear Module
Clunk SoundWhileY Axes AreMoving
Possible Cause
• The two Y axes are notin sync.
Actions
1. Swap one of the Y axes with the X axis. In most cases, the issue should be solved.
2. If the issue still exists, swap one Y axis with one of the Z axes.
Linear Module Burns out Suddenly
Possible Cause
• The Linear Module is broken.
Actions
Replace the Linear Module.
Linear Module Only Moves in One Direction
Possible Cause
• The end-stop switchis stuck.
Actions
1. Connect the machine toyourcomputerwith a USB cable.
2. Launch the Snapmaker Luban. In the console, inputM119, and check the status of the end-stop switch.
- IfX_minorX_maxisdisplayed asTRIGGERED, thentheend-stop switch of theXLinear Module might be
stuck.
- Similarly, if Y_min, Y_max, Z_min, or Z_max is displayed asTRIGGERED, thenthe end stop switch of theY or
Z Linear Modules might be stuck.

06 |
Hardware
3. Fix the end-stopswitchon your TRIGGERED Linear Module.
3.1 Disassemblethe cover(the onewithno cable end) of the Linear Module.You will need the 2.5 & 2.0 hex
screwdriver.
3.2 Find the end-stop switch.Check if it's stuck.
3.3Tap the end-stop switchand re-assemble the Linear Module.
4. Check if the Linear Module works. If not, replacing the Linear Module might solve the problem.
Slider(Carriage) of Linear ModuleComesLoose
Actions
1. Takethe cover (the one with no cable attached) off from the Linear Module.You will need the 2.5 & 2.0 hex
screwdriver.

| 07
2. Slide the Slider off from the Linear Module.
Note:One side of the bearings is adjustable.

08 |
Hardware
3. Loosen thescrew circled in the picturebelow.
4. Twistthe bearing screwwith an H3 hex screwdriver to adjust the distance between the bearings of two sides.
The distance should be34.29 mm.
5. Tighten the fastening screw first and then tighten the bearing screw.
6. Repeat step 3 to 5 to adjust the other bearing.
7. Re-assemble the Linear Module.

| 09
Stainless Steel Strip of Linear ModuleComes Loose
Actions
Please refer to the videoon installing the stainless steel strip of the Linear Moduleathttps://drive.google.com/
file/d/1tUFob6tJCzQmuNlBeBNeBUayOdsDXi4W/view?usp=sharing.

10 |
Hardware
3D Printing
3DPrinting ModuleIsn't Detected
Ifyou turn on the machine, and the Touchscreen displays an error messageSnapmaker tech-team, thenit might
be that the 3D Printing Module isnot detected by the machine.
Possible Causes
• The toolhead cableis broken.
• The Linear Module or the Controller is broken.
• The 3D Printing Module is broken.
Actions
1. Replace the current toolhead cable with one of the interchangeable cables (see picture below).Use it to
connect the machine to your computer. In the Luban console, inputM1999and see if it displays3DPRINT
Modulein the second line from the bottom.
- If it does, then it means the 3D Printing Module is detected.The toolhead cable is broken. Replacing a new
toolhead cable can solve the issue.
-If it doesn't, thenit means the 3D Printing Module isn't detected. In that case, try the next step.
Z Conversion CableY Conversion CableToolhead Cable

| 11
2. Remove all the cables of the Linear Modules from the Controller, and see ifthe Printing Module, Laser Module,
and CNC Module can be detected.
- Ifyes, then itmeans one or more Linear Modules are disrupting Controller Network Area (CAN)
communication. Reconnect cables ofeach Linear Moduleone by oneto the Controller,and identifywhich
Linear Module(s) is broken.
- If no, thenthe Controller itself might be broken, replacing it might solve the problem.
3. If the Laser Module and CNC Module can be detected by the Controller, but the Printing Module can't, then the
Printing Module itself might be broken, replacing it might solve the problem.
First Layer Doesn't Stick to Print Sheet
Possible Causes
• Calibrationis incomplete.
• Printing speedis too fast.
• Filamentis compromised.
Actions
1. Recalibrate. For detailed instruction on calibration, refer to the Quick Start Guide. If the problem persists,
start a new printing session, and right before the filament comes out, swipe left on the Touchscreento view
the hidden menu and then tapZOffset at the bottom. Tap Up or Down to adjust the nozzle height.

12 |
Hardware
2. In Luban, go to Printing Settings to set the Initial Layer Print Speed as 8 mm/s and try again.
3. Try another filament.
3D Printing ModulePushes into Print Sheet
The 3D Printing Module clashes against the Print Sheet during calibration or printing.
Possible Causes
• The Y axesare not assembled properly.In this case, the 3D Printing Module is likely toclash against the Print
Sheetat the first or the fifth calibration point.
• The screws on the aluminum grid platform are installed wrongly.
• The probe sensor isn't working properly.
• The probe sensor wiring is worn out.
Actions
1. Check whether theY axes are securely fitted into the grooveson the Base Plate as illustrated. If not, adjust the
Y axes.

| 13
2. Check whether the screws on the aluminum grid platform face downward as illustrated.If not, re-install all the
screws on the platform.

3. If the problem persists, check whether the probe sensor is working properly.For detailed instructions, see
Adjustprobe/proximitysensorof3DPrintingModule.
4. If the problempersists,check the condition of probe sensor wiring. Open the right cover of the Printing
Module and find the sensor wiring. Unplug itand thenplugitback in.Close the cover and try again.
Filament Runout
When you start a print, the Touchscreen keeps telling you thatthe filament has run out when in fact it
hasn't.

14 |
Hardware
Possible Causes
• The filament switch is broken.
Actions
1. Remove the fan:https://youtu.be/e2L_Y_HZGgA.
2. Adjust the filament switch:https://youtu.be/_KAQvMNoJUQ.
Filament Won'tLoad
Possible Causes
• The nozzle is jammed.
• The filament is bent or compromised.
• The 3D Printing Module or Controller is broken.
Actions
1. Replace thehot end. A spare hot end is includedin the box.For how to change the hot end,
seehttps://drive.google.com/file/d/16lLntfp-3V-j48pP_-aeRtADg49mSnek/view.
2. Straighten the filament before you insert it into the Printing Module. Or try a different filament. If this does not
solve the problem, then the toolhead or the Controller might be broken. Go to the next step.
3. Turn on the machine, and press to open the latchon the 3D Printing Module.

| 15
4. On the Touchscreen, go to Control>Nozzle.
5. Waitfor the nozzle to heat up until you cantaptheLoadorUnloadbutton.Make sure the nozzle temperature
matches the working temperature of the filament you are using (ABS generally requires a higher temperature
than PLA, for example). TapLoadto see if the gear inside the 3D Printing Modulerotates.
- If it does, thenuse a metal stick to poke the feeding hole(see picture below). Make sure the filament inside
is all cleaned up.Close the small window to try again and see whether the filament can load properly.

16 |
Hardware
- If it doesn't, then check whether the Laser Module works.
- If theLaser Module works well, then the Printing Module itself is broken, replacing it might solve
the problem.
- If theLaser Modulewon'temit blue laser light (or won't stop emitting it, for that matter), then
somethingis wrong with the Controller. It might be that the customer has connected the
toolhead cable in the wrong direction, and the Controller and the cable is damaged as a result.
Replace the Controller. Then check whether the 3D Printing Module and Laser Module works
with the new Controller. If not, these two modules may also be broken and need to be replaced.
Blobs on Nozzle
A blob (see pictures below)happens when the filament is still under pressure from the3D Printing Modulewhen
a layer is finished. This results in a short burst of over extrusion: a blob, also known as Z-scaring or Z-seam. It
can also occur mid-printing.
Possible Causes
• Print speed istoo fast.
• The first layer fails to stick to the Print Sheet.
• The filament is compromised.