NEMA 17 Stepper Motor Mounting Bracket - L Shape (Molded Plastic)

Specifications

• Motor Compatibility: NEMA 17 (42mm Stepper Motors)

• Material: High-Strength Injection Moulded Plastic (ABS/Nylon composite)

• Colour: Black

• Mounting Angle: 90 Degrees (Right Angle)

• Motor Mounting Holes: 4 x Unthreaded (Fits M3 Screws)

• Frame Mounting: Slotted Base Holes (Adjustable)

• Structure: L-Type with side gussets for strength

• Weight: ~20g (Approx)

Key Applications

• 3D Printer Extruders: Commonly used with lightweight geared extruders (like Titan or BMG setups) where saving weight on the X-carriage is critical for speed.

• Educational Robotics: Safe, lightweight, and non-conductive mounting for student projects.

• Camera Sliders: Silent motor mounting for video equipment.

Virtual Technician: Installation Tips ⚠️

• Screw Selection: Since this is plastic, use M3 screws with washers. Do not over-tighten, as excessive force could crack the plastic mounting ears. Snug is enough!

• Heat Warning: Stepper motors can get hot. This bracket is suitable for motors running at normal operating temperatures (<60°C). For high-temperature industrial applications, use our Metal NEMA 17 Bracket instead.

Accessories

• Included: 1 x Aluminium Motor Bracket

• Required (Sold Separately):

  • NEMA 17 Stepper Motor

  • M3 Screws (length depends on your specific setup, usually M3x10mm for the motor)

  • M4/M5 Screws (for mounting the base to your frame)

Frequently Asked Questions (FAQ)

1. Is this bracket metal or plastic?

   • This specific model is Injection Molded Plastic. It is lightweight and absorbs vibration.

2. Will it fit any NEMA 17 motor?

   • Yes, it fits standard NEMA 17 motors with a 42mm face and 31mm hole spacing.

3. Is it strong enough for a CNC machine?

   • For a light pen plotter or laser engraver, yes. For a heavy CNC router cutting wood/aluminum, we recommend our Steel L-Bracket for maximum rigidity.

4. Does it come with screws?

   • No, screws are not included. You will need M3 screws for the motor.

5. Why use plastic instead of metal?

   • Plastic is lighter (good for moving parts like 3D printer heads) and quieter (dampens vibration).

6. Can I use this for a NEMA 23 motor?

   • No, NEMA 23 motors are larger (57mm). This is strictly for NEMA 17 (42mm).

7. What is the distance between the mounting holes?

   • The motor holes are spaced 31mm apart (standard NEMA 17 layout).

8. Can I drill extra holes in it?

   • Yes, since it is plastic, it is easy to drill or modify for custom projects.

9. Will it melt if the motor gets hot?

   • It is designed to withstand standard stepper temperatures (up to ~60-70°C). If your motor is too hot to touch (>80°C), you should check your motor driver current, not just the bracket!

10. Does it fit the Titan Extruder?

    • Yes, this "L-style" shape is very similar to the standard mounting bracket included with many Titan/BMG extruder kits.

11. Is it conductive?

    • No, it is electrically non-conductive, which helps isolate the motor frame from the rest of the machine.

12. What is the thickness of the plastic?

    • The main walls are typically 3-4mm thick, reinforced with ribs.

13. Can I mount it to a wall?

    • Yes, the base has holes that can be screwed into wood, drywall anchors, or metal frames.

14. Is it 90 degrees?

    • Yes, it holds the motor at a right angle to the mounting surface.

15. What size screws fit the base slots?

    • Typically M4 or M5 screws fit the base slots comfortably.

16. Does it warp over time?

    • High-quality ABS/Nylon blends are stable. However, avoid using it in enclosed chambers above 60°C for prolonged periods.

17. Is this stronger than a 3D printed bracket?

    • Generally, yes. Injection molded parts are isotropic (solid) and do not have the layer adhesion weaknesses of FDM 3D printed parts.

18. Can I paint it?

    • Yes, plastics can be painted with acrylic or spray paint.

19. Does it hold the motor securely?

    • Yes, when used with 4 screws, it provides a very secure mount.

20. Is the "L" shape rigid?

    • The side gussets (triangular ribs) prevent the "L" from flexing open, keeping it quite rigid for its weight.