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BIGTREETECH SKR 3 User Manual
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Shenzhen Big T
ree T
echnology CO
.,L
TD .
BIG TREE TE
CH
22
/
39
4.3.6 100K NTC or PT1000
When using 100K NTC,
pullup resistanc
e is 4.7K, when
using Pt1000,
pullup
resistance is
1K
,set sensor typ
e to 1 for 10
0K NTC +4.7K pullup r
esistance
，
1010 for PT1000 + 1K
pullup resistanc
e.
#define
TEMP
_SENSOR_0
1
#define
TEMP
_SENSOR_1
1
#define
TEMP
_SENSOR_BED
1
4.3.7 BLTouch
//#define Z_MIN_PROBE_USES_Z_MIN_E
NDSTOP_PIN
//
#define
BLTO
UCH
// Enable bltouch
21
23
Table of Contents
Table of Contents
2
Content
2
Revision History
5
Introduction
6
Features
6
Specification
7
Firmware
8
Dimensions
8
Peripheral Port
9
Connector Diagrams
9
Pinout Diagram
9
Connection Description
10
USB Power Supply
10
Stepper Driver
10
STEP/DIR(STANDALONE) Mode
10
UART Mode of TMC Driver
12
TMC Driver SPI Mode
12
TMC Driver DIAG(Sensorless Homing)
12
USB and CAN Mode
13
Voltage Selection for CNC Fan
13
100K NTC or PT1000 Setting
14
Bltouch Wiring
14
Auto Power off (Relay V1.2) Wiring
15
Power Loss Recovery (UPS 24V V1.0) Wiring
15
RGB Wiring
16
Filament Sensor Wiring
16
Display Wiring
17
Marlin
18
Install Compiling Environment
18
Download Marlin Firmware
18
Configure Firmware
18
Open Marlin Project
18
Compiling Environment
18
Configure Motherboad and Serial Port
19
Configure Stepper Driver
20
Sensorless Homing
21
100K NTC or PT1000
22
Bltouch
22
Auto Power off(Relay V1.2)
25
Power Loss Revovery
25
Rgb
26
Filament Sensor
27
Smart Filament Sensor(SFS V1.0 / V2.0)
28
Esp3D
29
Compile Firmware
30
Klipper
31
Preparation
31
Download os Image
31
Download and Install Raspberry Pi Imager
31
Write Image
32
WIFI Setting
34
Ssh Connect to Raspberry Pi
34
Compile Firmware
36
Configure Klipper
37
Firmware Update
38
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BIGTREETECH SKR 3 Specifications
General
Brand
BIGTREETECH
Model
SKR 3
Category
Motherboard
Language
English
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