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- EZBoard - EEPROM, TMC Driver Settings, and Acceleration
- EZBoard - FAQ
- EZBoard - Installation Guide & Firmware Info
- EZBoard - Lite V1.X - BTT TFT35-E3 Wiring and Firmware Setup
- EZBoard - Lite V1.x - EZABL Not Triggering Fix
- EZBoard - Lite V1.X – Why do you use the TMC 2208 Instead of TMC 2209 Drivers?
- EZBoard – Flashing Firmware MicroSD Recommendations
- Setting up VSCode to Compile EZBoard Firmware - Local Compile
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- Bowden Fitting Clips for Tough Extruder Fittings
- Creality Extruder Motor Shaft Lengths
- Heatbreak Installation Information
- PTFE Heatbreak Installation Directions
- TH3D Ender 5 Plus ABS Tough Extruder Bracket Assembly
- Tough Extruder Firmware Settings
- Tough Extruder or E3D Titan Assembly Video
- Upgraded Aluminum Extruder Installation Video (V2)
- Using your All Metal Hotend
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- Applying Vision Miner Nano Polymer
- EZFlex/EZMat/EZPei – Adhesion Tips and Tricks
- Fitting Fans to Creality Machines – Larger Metal Standoffs
- How to use our Fan Quick Connectors (UY Style)
- Older EZABL Kits (V1/V2/V3/V3.1)
- PTFE Safety Precautions – ALL PTFE & ToughTube
- Raspberry Pi Direct Wire Power Adapter – How to connect
- TH3D High Amp 12V/24V MOSFET V2 Installation Information and Mounts
- TH3D Solid Bed Mounts Installation Information
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- Creality Mega 2560 Board Connections (CR-10S/Dual Board)
- Creality Melzi Board Connections (CR-10/Ender 3/Ender 5)
- Creality V2.0/V2.1/V2.2 Board – Atmel 2560 ICSP Programming Header Pinout
- Creality V4.2.2 & V4.2.7 Board BL Touch Wiring Options
- Creality V4.2.X Board Driver Codes
- Creality V4.2.X TMC Boards - Recommended VREF
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- Creality CR-10 V2 Firmware | V2.5.2 Board
- Creality CR-10, CR-10S, CR-20, Ender 3/5 - Dual Extrusion Board | V2.X (2560) Board
- Creality CR-10/Mini/S4/S5, Ender 2, Ender 3, Ender 5 Firmware | Melzi (V1.1.x) Board
- Creality CR-10/S, Ender 2/3/3 Pro/5/5 Pro/5 Plus, & Sovol SV01 Firmware | EZBoard Lite Board
- Creality CR-10S Mini/S4/S5/Pro, CR-20, CRX, Ender 3/5/5 Plus Firmware | V2.X (2560) Board
- Creality Ender 3 V2 Firmware + LCD Firmware | V4.2.X Board
- Creality Ender 3/3 Pro & Ender 5/5 Pro Firmware | SKR E3 Mini Board
- Creality Ender 3/3 Pro & Ender 5/5 Pro Firmware | V4.2.X Board
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- Audew JC-48A Humidor Trays
- Bowden Fitting Clips for Tough Extruder Fittings
- Ender 3 Dual Z Kit PSU Relocation STL Links
- EZABL Probe Mounts - Where to download them
- EZABL Solid Mount Camera STL Files
- EZOut Filament Sensor Mount for Wanhao Duplicator i3
- TH3D 40MM Fan Grill
- TH3D Ender 5 Plus ABS Tough Extruder Bracket Assembly
- TH3D Uno Bootloader Kit Case
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- 3D Printer Help Guide Creality & Others
- ABL Z Offset, Gantry Leveling, Babystepping, Storing Offset to EEPROM
- Creality V4.2.X Board Driver Codes
- Printer Bed Sizing Chart
- Printer Homing Types | Home Positions Explained | Min/Max/ABL Probes
- Removing Stress Marks from Printed Parts
- SKR E3 Mini, SKR E3 Turbo, Creality V4.2.2, and V4.2.7 LCD EMI Issue
- Testing and Checking your Stepper Motors
- Thermistor Values for Unified 2 Firmware
- Tips for Printing ABS Successfully with your 3D Printer
- What board is in my Ender 3D printer? | Ender 3/5
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- AnyCubic Mega Zero V1 Heated Bed Upgrade DIY Info
- CR-10S V2.0/V2.1 Temperature Repair
- Creality Press-Fit Extruder Gear Removal
- Dual Extrusion Setup Information
- EZABL Duet Board Setup Information
- Linear Advance Information for Marlin Based Firmware
- P.I.D. Bed Calibration Guide
- P.I.D. Hotend Calibration Guide
- Re-wiring 2 Pin Fan Connectors - Video
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- Arduino IDE - Mac OS X Setup Guide
- Pronterface - Using Pronterface to send GCode to your Printer
- Simplify3D - Not Connecting to Printer over USB
- Slicers - Starting Gcode Locations - EZABL
- VSCode - "No such file or directory" Error
- VSCode - Manually Selecting your Upload (COM) Port
- VSCode - PlatformIO Toolbar Missing - How to Fix
- VSCode - Problems & Terminal Tabs
- VSCode - Setup Guide for Unified 2 and Marlin 2 Firmware
- VSCode - Unified 2 Tips for Noobs (Video)
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- 3D Printer Help Guide Creality & Others
- CR-10(S) Setup and Mechanical Checks
- EZFlex/EZMat/EZPei – Adhesion Tips and Tricks
- Fan Stuck 100% or Not Coming On - Layer Fan or other Fan
- Flashing Firmware with an Uno – Useful if your printer USB port is bad
- Printer Grounding – How to Check your PSU and Grounding Your Bed
- Sensors and Gantry Grounding
- Setting your ZOffset (Video)
- Temp Reading High, MAXTEMP Error, or LCD Blank
- Testing and Checking your Stepper Motors
- Testing your SD Card for errors
- Using your All Metal Hotend
- Y Layer Shifting on Your Printer
- Z Axis Troubleshooting
- Zits or Blobs On My Prints
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- Creality BL Touch Probe Mount Offsets (Metal Bracket)
- Creality CR-10 and CR-10S Models – What Printer do you have?
- Creality CRX – EZABL, EZOut, and Firmware Videos
- Creality Ender 3 & Ender 3 Pro - Upgrades, Information, and Tips
- Ender 3 V2 - Swapping to the 12864 Creality LCD for more features
- Ender 5 Plus Upgrade Paths – EZABL, EZBoard, LCD Kit
- Unified Firmware Wanhao Duplicator i3 Plus Information
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- AC Bed Wiring with a SSR for Control
- BL Touch Wiring Harness Colors – Antclabs vs BigTreeTech (BTT)
- BL Touch Wiring Harness Colors – Antclabs vs Creality
- Creality CR-10 V2/V3 Breakout Board Pinout
- Creality Mega 2560 Board Connections (CR-10S/Dual Board)
- Creality Melzi Board Connections (CR-10/Ender 3/Ender 5)
- Creality V2.0/V2.1/V2.2 Board – Atmel 2560 ICSP Programming Header Pinout
- Creality V4.2.2 & V4.2.7 Board BL Touch Wiring Options
- EZABL PSU 12V/24V Power Wiring
- EZABL SKR 1.4/1.4T Connection
- How to use our Fan Quick Connectors (UY Style)
- MKS Gen L Board Connections
- MKS SGen L V2 Wiring/Pinouts
- TH3D High Amp 12V/24V MOSFET V2 Installation Information and Mounts
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- COVID19 - Shipping Delays
- Route+ Insurance - FAQ
- Route+ Insurance - How to open a claim
- Route+ Insurance - Is it worth it?
- Route+ Insurance - When to file a Route+ claim, deadlines, and policies
- Shipment Received, Package Acceptance Pending - USPS Status
- Shipping to Mail Forwarders
- UK Shipping - New VAT laws
- When will my order ship?
- Wrong Address Entered at Checkout
About the M48 Test
One of the first things you should if you are having issues is check how well its working by using the M48 command to test it.
If your M48 test results in a value of 0.01 or lower for the standard deviation then the probe is working and something else on the printer is causing issues with the resulting 1st layer. Common issues are: Gantry Being Unlevel, Extrusion Issues with hotend and/or extruder, or mechanical issues.
In our latest firmware M48 is enabled by default for ALL machines that we support. Please update to the latest one before contacting support as it addresses issues present in older firmware releases.
Running the Test from your LCD
On the latest Unified 2 firmware (and some versions of Unified 1) we have the M48 test built into the LCD. This is available for most printers that use the standard Marlin LCD interface. If you have a touch/color LCD (Like the Ender 3 V2) you will need to run the probe test manually with the directions below.
With your printer at temperature (on the hotend and bed) and your bed clear go to your LCD and press the knob. Then go to Motion and select M48 Probe Test
The printer will home XYZ and then start the test. You will see “M48 Point X/10” on the LCD. It will take 10 probe readings and then show you a number on the LCD. This number should be 0.01 or lower.
Result 0.01 or lower? Your probe is setup and working correctly.
Result higher than 0.01? You need to run back through the installation guide. Make sure the probe is mounted and calibrated per the EZABL installation guide directions.
Manually Running the Test
Use commands like this to run 10 probes and get the measurements:
M48 P10 X100 Y100 V2
The output will look like this:
M48 Z-Probe Repeatability Test
Finished!
Mean: 3.450000 Min: 3.442 Max: 3.452 Range: 0.010Standard Deviation: 0.004330
This shows the absolute maximum and minimum measurements the sensor took, the mean (average) of all the measurements, the range between the maximum and minimum, and the standard deviation.
The standard deviation is interesting because it tells us that 68% of all the measurements were within 0.00433mm (one standard deviation) of either side of the mean, and 95% of the measurements were within 0.00866 (two standard deviations) of the mean.
A good probe should consistently give a range in the hundredths of mm, e.g. 0.05mm. An exceptionally good probe will have a range in the thousandths. EZABL™ probes typically test UNDER 0.02mm on well setup machines with no mechanical or electrical issues.
If you get a large range or standard deviation you should look for sources of movement in your Z-axis or the VREF on Z is set too low.
The motor couplers can contribute to excess play and you can consider upgrading them to better ones (like Upgraded Couplers, TH3D sells them), ESPECIALLY if yours are stretched out. Failing that, contact our support for more troubleshooting. If the probe is bad we will replace it under warranty.