PTFE 2x4mm White Teflon Tube for 3mm 3D Printer Filament - 1 Meter (2mm ID X 4mm OD) The 2x4mm Teflon Tubing – For 3D Printers 1.75mm Filament good corrosion resistance and high insulation resistance. High or low-temperature resistance. It has unique lubricity and the surface is no sticky. PTFE Teflon Tube for 4mm 3D Printer Filament has 2mm inner diameter and 4mm outer diameter. PTFE Tube to get the best printing performance out of your 3D Printer. It increases print quality, reduces filament jams, and improves retraction. Durable using in the atmosphere and protect itself from being aged. Non-inflammability and made of PTFE material. check out : PTFE 3x5mm White Teflon Tube for 3mm 3D Printer Filament - 1 Meter (3mm ID X 5mm OD)

PTFE 3x4mm White Teflon Tube for 3mm 3D Printer Filament - 1 Meter (3mm ID X 4mm OD) The  3x4mm Teflon Tubing – For 3D Printers 3mm Filament good corrosion resistance and high insulation resistance. High or low-temperature resistance. It has unique lubricity and the surface is no sticky. PTFE Teflon Tube for 4mm 3D Printer Filament has 3mm inner diameter and 4mm outer diameter. PTFE Tube to get the best printing performance out of your 3D Printer. It increases print quality, reduces filament jams, and improves retraction. Durable using in the atmosphere and protect itself from being aged. Non-inflammability and made of PTFE material. check out : 1.75mm White ABS Filament -1Kg

PTFE 3x5mm White Teflon Tube for 3mm 3D Printer Filament - 1 Meter (3mm ID X 5mm OD) The 3x5mm Teflon Tubing – For 3D Printers 3mm Filament good corrosion resistance and high insulation resistance. High or low-temperature resistance. It has unique lubricity and the surface is no sticky. PTFE Teflon Tube for 3mm 3D Printer Filament has 3mm inner diameter and 5mm outer diameter. PTFE Tube to get the best printing performance out of your 3D Printer. It increases print quality, reduces filament jams, and improves retraction. Durable using in the atmosphere and protect itself from being aged. Non-inflammability and made of PTFE material. check out : 1.75mm 100g Yellow ABS Filament

PTFE 4x6mm White Teflon Tube for 3mm 3D Printer Filament - 1 Meter (4mm ID X 6mm OD) The 4x6mm Teflon Tubing – For 3D Printers 3mm Filament good corrosion resistance and high insulation resistance. High or low-temperature resistance. It has unique lubricity and the surface is no sticky. PTFE Teflon Tube for 3mm 3D Printer Filament has 4mm inner diameter and 6mm outer diameter. PTFE Tube to get the best printing performance out of your 3D Printer. It increases print quality, reduces filament jams, and improves retraction. Durable using in the atmosphere and protect itself from being aged. Non-inflammability and made of PTFE material. check out : 1.75mm 100g Red ABS Filament

Pure Copper 1 Meter Length Cable with Dupont Connector for NEMA17 Stepper Motor (1 Meter) The Pure Copper 1000mm Length Cable with Dupont Connector is a  Replacement cable for NEMA17 Stepper Motor. The conductors of this 1 meter Cable with Connector for NEMA17 Stepper Motor consist of pure copper. It has an overall length of 1000 mm which is very convenient to install your stepper motor systematically in your projects or 3D printers etc. It equips 6 pin JST XH connector at one end and 4 pin Dupont connector at another end. These are very flexible cables specially designed for connecting NEMA17 Stepper Motor with Stepper Motor Drivers . Also check Pure Copper 720mm Length Cable with Dupont Connector designed for NEMA17 Stepper Motors. It serves as a replacement cable for NEMA17 Stepper Motors and features pure copper conductors. The cable is 720mm long, making it suitable for various applications such as 3D printers. It comes with a 6-pin JST XH connector at one end and a 4-pin Dupont connector at the other end.

Pure Copper 720mm Length Cable with Dupont Connector for NEMA17 Stepper Motor This is Replacement cable for NEMA17 Stepper Motor. The conductors of this 720mm Cable with Connector for NEMA17 Stepper Motor consists of pure copper. It has an overall length of 720 mm which is very convenient to install your stepper motor systematically in your projects or 3D printers etc. It equips 6 pin JST XH connector at one end and 4 pin Dupont connector at another end. These are very flexible cables specially designed for connecting NEMA17 Stepper Motor with Stepper Motor Drivers.

Push-Pull Metal DC 12V Solenoid Electromagnet TDS-KN07 A-50 The Push-Pull Type Open Frame Solenoid Electromagnet TDS-KN07 A-50 DC 12V is a compact and reliable actuator designed for precision movement and control. This high-performance solenoid operates on 12V DC and is ideal for use in automated systems, locking mechanisms, vending machines, and other industrial applications requiring linear motion. With a sturdy open frame design, the 12V solenoid valve offers durability and consistent operation in both push and pull configurations. Its small form factor makes it a perfect fit for space-constrained setups in electronic and mechanical projects. Features: Push-pull mechanism: Able to move in both directions for a variety of uses. High Efficiency: Minimizes power loss while converting electrical energy into mechanical action. Long-lasting Performance: Made from premium metal for a sturdy construction. Fast Response Time: Offers dependable and quick actuation. Small Size: Perfect for projects with limited area. Applications: Mechanisms for Locking Doors Industrial automation Home automation Vending machines

9V-50V 10A PWM DC Motor Speed Controller This is the 9V-50V 10A PWM DC Motor Speed Controller, The DC Motor Speed Controller allows controlling the direction of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 10%-100%. The motor speed controller can provide a continuous current of 10A to your DC motor or other DC load. The circuit also includes a 10A fuse, with the reverse connection of the power supply and control voltage over-voltage protection function. This speed regulator uses a barrier terminal block as its wiring type. The output voltage is linear under load and features a control frequency of 13kHz. Features: Control the speed of a DC motor with this controller. High efficiency, high torque, low heat generating. With reverse polarity protection, high current protection. Control voltage over-voltage protection function The overload and short circuit protecting current is 10A

Quad 2 Input NOR Gate IC - CD4001 The CD4x Series CD4001 IC is a quad, 2-input NOR gate IC. It is a monolithic CMOS transistor-based IC having efficient source and sink capabilities. Circuits that use this IC can be easily operated using the battery as CD4001 is a low-power consumption IC. A 14-pin DIP package, this IC can work at temperatures up to 125 0. The circuit in this project is built around a commonly used CD4001 IC and a few more discrete components. check out : CD4093 - Quad 2-Input NAND Schmitt Trigger IC CD4001 NOR gates provide the system designer with direct implementation of the NOR function and supplement the existing family of CMOS gates. All inputs and outputs are buffered. The CD4001 types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix). Pinout: Pinout of CD4001 IC Pin Name Pin # Type Description VDD 14 Power Supply Voltage (+3 to +15V) GND 7 Power Ground (0V) A1 to A4 1, 5, 8, 12 Input Inputs A of the four NOR gates B1 to B4 2, 6, 9, 13 Input Inputs B of the four NOR gates Q1 to Q4 3, 4, 10, 11 Output Outputs from the four NOR gates

Quad 2-Input Multiplexer IC - 74HC157 The 74HC Series 74HC157 is a 16-Pin Quad 2-Input Multiplexer IC having 2V to 6V Operating Voltage range with 1uA Low Input current and high noise immunity. It selects 4 bits of data from two sources under the control of a common data select input (S). The enable input (E) is active LOW. When E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all other input conditions. Pinout: Pinout of 74HC157 IC Pin Number Pin Name Description 2,5,11,14 Input A This is the first input line of the 2:1 Multiplexer 3,6,10,13 Input B This is the second input line of the 2:1 Multiplexer 4,7,9,12 Output Y This is the output line pin of the Multiplexer 1 Line Select (S) The select pin selects one of the two input lines and gives it to the output line 15 Enable (E) Active low pin. Grounded for normal operation 8 Ground Connected to the ground of the system 16 Vcc This pin powers the IC, typically +5V is used. Also check 74LS161 Synch 4-Bit Counter . It has an operating voltage range of 4.5V to 5.5V and a temperature range of -55°C to +125°C Also check 74HC151 IC ( 74HC151 - 8-Input Multiplexer IC), used as a Data Selector/Multiplexer with full on-chip decoding to select one of eight data sources based on a unique three-binary code at select inputs