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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
100uf capacitor		1

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