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STD stm32f103 bluepill 3D printer control board

License: GPL 3.0

Mode: Editors' pick

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Update time: 2024-03-11 20:22:53
Creation time: 2018-12-22 20:04:33
Description
A 3D printer control board based on stm32f103c blue pill board. * Single 12-24V voltage input * 4 slots for stepper motor drivers * 3 MOSFET outputs for bed, heater and cooler fan * 3 inputs for end-stops * 2 inputs for temp sensors * 3 non-regulated outputs with supply voltage (e.g. for additional coolers, LEDs, etc) * connectors for standard RepRap Smart Discount controller * I2C connectors (e.g for I2C LCD) * Reverse voltage protection (a reverse connected diode which'll blow the fuse in case of wrong polarity) * One-side PCB, convenient for DIY Can be done with minimal efforts (1 side PCB). Based on low cost components (the MCU is just a cheap replaceable BluePill board). Sources can be found here https://github.com/xl0e/Marlin-BluePill The environment is already preset for this board and reprap discount controller. Refer to configuration.h files for you printer settings. [!] The low-level voltage source for this board is a standard LDO therefore in case of 24V input voltage it's quite tough for LDO to dump 19V voltage difference. I tested on my board with L7805 by ST. It heats up to 60-70C which is acceptable but additional heatsink is preferred.
Design Drawing
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PCB
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ID Name Designator Footprint Quantity
1 470u C1,C2,C3,C4 CAP-D8.0×F3.5 4
2 4.7nF C5,C6,C14 CAP-TH_L4.2-W3.8-P5.08-D0.6 3
3 100u C7,C11 CAP-D5.0XF2.0 2
4 1u C10,C12 CAP-D5.0×F2.0 2
5 1N4007 D2 DO-41_BD2.4-L4.7-P8.70-D0.9-RD 1
6 LED-3MM D3,D4 LED-3MM/2.54 2
7 LED-TH-3mm_R D5 LED-TH_BD3.0_RED 1
8 HDR-IDC-2.54-2X5P EXP1,EXP2 HDR-IDC-2.54-2X5P COPY 2 //image.lceda.cn/szlcsc/C5665.jpg
9 Header-Female-2.54_1x4 E_MOTOR,X_MOTOR,Y_MOTOR,Z_MOTOR HDR-4X1/2.54 4
10 RUEF900 F1 RUEF900 1
11 Header-Male-2.54_1x2 FAN1,FAN2,FAN3,T_BED,T_EXT HDR-2X1/2.54 5 //image.lceda.cn/szlcsc/C86471.jpg
12 HDR-F-2.54_1x8 H1,H4,H5,H6,H7,H8,H9,H10 HDR-F-2.54_1X8 8
13 HDR-F-2.54_1x20 H2,H3 HDR-F-2.54_1X20 2
14 XY128V-A-5.08-2P HEATBED,HOTEND,POWER,PRINTFAN CONN-TH_XY128V-A-5.08-2P 4
15 HDR-M-2.54_1x4 I2C HDR-M-2.54_1X4 1
16 Header-Male-2.54_1x3 P1,P2,P3,P4,P8,P9,P10,P11,X_MIN,Y_MIN,Z_MIN HDR-3X1/2.54 11 //image.lceda.cn/szlcsc/C49257.jpg
17 IRLB3034PBF Q1 TO-220(TO-220-3) 1
18 IRLZ44NPBF Q2,Q3 TO-220(TO-220-3) 2
19 1k R1 AXIAL-0.25-10MM 1
20 10R R2,R5,R8 AXIAL-0.25-8MM 3
21 100k R3,R6,R9 AXIAL-0.25-8MM 3
22 1k R4,R7 AXIAL-0.25-8MM 2
23 5k1 R10 AXIAL-0.3 EXTENDED 1
24 5k1 R11 AXIAL-0.3 EXTENDED-2 1
25 1k5 R12 AXIAL-0.3 LONG-850MIL 1
26 Bluepill U1 STM32F103C8T6-MODULE 1
27 L7805 U2 TO-220FPAB 1
28 LM2937ET-3.3/NOPB U3 TO-220-3 1

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