NEMA17 L Clamp Mounting Bracket For 42mm Stepper Motor without screws

Specifications:

• Compatibility: Standard NEMA 17 Stepper Motors (42x42mm faceplate).
• Material: High-quality metal
• Thickness: 3mm (Rigid, anti-flex).
• Finish: Black Anodized (Corrosion and scratch resistant).
• Motor Mounting Hole Spacing: 31mm (Industry standard for NEMA 17).
• Base Mounting Slots: 30mm long, spaced 30mm apart (Allows for adjustable tensioning).

Applications

• Desktop CNC Routers & Laser Engravers: Rigid X and Y-axis gantry motor mounting.
• Custom 3D Printers: Upgrading from PLA printed brackets to eliminate heat-creep deflection.
• Robotics: Actuator joints and differential drive bases.
• Photography: Motorized camera sliders and automated pan-tilt heads.

Unlock New Capabilities

• Past Projects: If you've been relying on 3D printed PLA motor mounts, you've likely experienced warping when your stepper motors get hot, leading to loose belts and skipped steps.
• The Upgrade: Moving to this 3mm Aluminum L-Bracket unlocks high-speed, high-torque capabilities. It acts as a passive heatsink for the motor and provides absolute rigidity for tight timing belts.
• Effort Level: Beginner. Just 4 screws attach the motor, and 2 screws secure it to your frame.

Package Includes:

• 1 x NEMA17 L Clamp Mounting Bracket For 42mm Stepper Motor without screws

Frequently Asked Questions (FAQ)

• What size motor does this bracket fit?
  It is exclusively designed for NEMA 17 stepper motors, which have a 42mm x 42mm faceplate.
• What is the hole spacing for the motor screws?
  The four mounting holes are spaced exactly 31mm apart, matching the standard NEMA 17 specification.
• Does this bracket come with the mounting screws?
  No, this specific listing is for the bracket only (without screws). You will need your own M3 screws.
• What size screws do I need to attach the motor to the bracket?
  You will need four M3 machine screws. A length of 6mm to 8mm is typically ideal depending on your motor's threaded hole depth.
• How thick is the metal on this bracket?
  The bracket is 3mm thick, ensuring it will not flex under standard NEMA 17 torque loads.
• What material is this bracket made from?
  It is machined from a strong, lightweight aluminum alloy, not heavy steel.
• Can I mount this to standard 2020 aluminum V-slot extrusion?
  Yes, the base slots are wide enough to accommodate M4 or M5 screws, which pair perfectly with T-nuts in 2020 extrusions.
• Will this fit a NEMA 23 stepper motor?
  No, NEMA 23 motors require a much larger bracket with 47.1mm hole spacing.
• Will this bracket bend if my timing belt is very tight?
  Because it is a 3mm thick aluminum block, it is highly resistant to bending and is suitable for high-tension CoreXY or CNC belt setups.
• Does the aluminum bracket act as a heatsink?
  Yes, mounting your motor to an aluminum bracket helps dissipate some heat away from the motor body into your frame.