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Arvinszhang edited this page Apr 13, 2019 · 52 revisions

Welcome to the 2D-Printer wiki!

Introduction

picture of printer

Hardware design

Bill of material

BOM for 2D Printer

component Description Quantity Supplier
NEMA-17 Stepper motor 2 onecall MC02060
SG90 Micro servo motor 1 eBay
UEETEK Flexible shaft couplings 5mm to 8mm stepper motor coupler aluminium alloy joint connector 4 Amazon
Screw rod 200mm 3D printer T8-2 8mm lead threaded screw rod linear rail bar shaft 2 Amazon
Brass nut Dia 22mm Brass 8mm 4-Start Flange Nut for CNC 3D Printer Rod Lead Screw 4 Amazon
M8 hexagon nut 4

BOM for PCB

component Description Quantity Supplier
L293DNE Quadruple high current half-H driver 2 onecall 1470423
CTB0500/2 2 way 14 A low profile interlocking terminal block 5 Rapid 21-1540
CTB0500/3 3 way 14A low profile interlocking terminal block 1 Rapid 21-1545
M20-6102045 2.54mm pitch PC/104 40 connectors 1 Farnell 1569230
10ML100MEFC6.3X5 Electrolytic Capacitor, Miniature, 100 µF, 10 V, ML Series, ± 20%, Radial Leaded, 6.3 mm 1 Farnell 8126160

Wiring diagram

wiring diagram

Servo Motor Control Motor Driver Board Control Stepper Motor Control
Raspberry Pi Servo Motor
Pin4(Power) 5V
Pin12(GPIO1) Signal
Pin20(Ground) Ground
Raspberry Pi L293D Drive Board
Pin31(GPIO22)/Pin32(GPIO26) Pin2(1A)
Pin33(GPIO23)/Pin36(GPIO27) Pin7(2A)
Pin35(GPIO24)/Pin38(GPIO28) Pin10(3A)
Pin37(GPIO25)/Pin40(GPIO29) pin15(4A)
L293D Drive Board Stepper Motor
pin3(1A) Red
Pin6(2A) Green
Pin11(3A) Yellow
Pin14(4A) Gray

Schematic

PCB design

Conclusion

Reference

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