OctagonStar Flexible Couplings 5mm to 8mm NEMA 17 Shaft for RepRap 3D Printer or CNC Machine(2PCS)

Flexible shaft couplers used in small CNC machines and 3D printers such as Prusa i3 or ORD Bot.
Flex capability of the coupler removes stress when shafts are not aligned perfectly.
Brand Listing, If you buy is not OctagonStar brand product, You Can Apply for a Refund and Compensation.

Product Features

  • Flexibility of this coupler removes stress between motor and driving component.
  • Compatible with NEMA 17 stepper motors (for 5mm to 8mm shaft diameter).
  • Useful in RepRap 3D Printers and small CNC machines.
  • Dimensions: 19mm x 25mm.
  • NOTE:OctagonStar Quality Assurance.Item package or product surface have OctagonStar brand identity. If you feel to buy isn’t OctagonStar item, you can return or exchange.

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OctagonStar LM8UU Linear Bearing Ball Bushing for 3D Printer(6PCS)

Perfect for linear motion on your 3D Printer, CNC, or other applications.
May require lubrication.
Package include:6Pcs.
Brand Listing, If you buy is not OctagonStar brand product, You Can Apply for a Refund and Compensation.

Product Features

  • LM8UU Linear Bearings.
  • 8mm Inside diameter, 15mm outside diameter, 24mm length.
  • Great for linear motion on 3D Printer, CNC, and other applications.
  • Bearings may require lubrication and break in period.
  • Brand Listing, If you buy is not OctagonStar brand product, You Can Apply for a Refund and Compensation.

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OctagonStar DRV8825 Stepper Motor Driver Module 4-layer for 3D Printer Reprap RP A4988(5PCS)

The DRV8825 stepper motor driver carrier is a breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver. The module has a pinout and interface that are nearly identical to those of our A4988 stepper motor driver board, so it can be used as a higher-performance drop-in replacement for those boards in many applications. The DRV8825 features adjustable current limiting, overcurrent and overtemperature protection, and six microstep resolutions (down to 1/32-step).
It operates from 8.2 – 45 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (rated for up to 2.2 A per coil with sufficient additional cooling).
DRV8825 Technical Specs:
– Simple step and direction control interface
– Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step
– Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
– 45 V maximum supply voltage
– Built-in regulator (no external logic voltage supply needed)
– Can interface directly with 3.3 V and 5 V systems
– Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout
– Short-to-ground and shorted-load protection
– 4-layer, 2 oz copper PCB for improved heat dissipation
– Exposed solderable ground pad below the driver IC on the bottom of the PCB
– Module size, pinout, and interface match those of our A4988 stepper motor driver carriers in most respects.
Brand Listing, If you buy is not OctagonStar brand product, You Can Apply for a Refund and Compensation.

Product Features

  • DRV8825 Stepper Motor Driver Module.
  • 4-layer,Improved heat dissipation,Simple step and direction control interface.
  • Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step.
  • Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher.
  • Brand Listing, If you buy is not OctagonStar brand product, You Can Apply for a Refund and Compensation.

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OctagonStar Hotend Barrel M6x26MM Teflon Nozzle for MK8 Tube Makerbot 1.75mm 3D Printer Extruder Hot End Reprap Prusa I3(5PCS)

Specification:
Type : Nozzle Throat
Compatibility : 3D Printer
Outer Thread : M6
Inner Diameter : 2mm
Length : 26mm
Filament Diameter : 1.75mm
Material : Stainless Steel
Package:
5 Pieces 3D Printer Extruder Hotend 1.75mm Nozzle Inputting Tube.
Brand Listing, If you buy is not OctagonStar brand product, You Can Apply for a Refund and Compensation.

Product Features

  • OctagonStar Hotend Barrel M6x26MM Teflon Nozzle.
  • Brand Listing, If you buy is not OctagonStar brand product, You Can Apply for a Refund and Compensation.

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