Pololu 4756 37D Gearmotor Mount

This is a custom mount for the Pololu 4756 metal gearmotor (37D, 12V, encoder version).

I designed this part for my own mechanical project where I needed a solid and compact way to mount the motor to a flat plate/base. The mount holds the motor securely and provides a clean interface for fastening.

Features

• Compact and rigid structure
• Suitable for robotics, engineering and custom motion projects
• Easy to mount to a flat surface
• Functional design focused on real use, not decoration

Compatibility

• Designed for Pololu item #4756
• 37D metal gearmotor body
• Encoder version shown in photos

Mounting hardware

• Designed for M3 screws
• The mount is attached using M3 fasteners
• Please adjust screw length depending on your assembly thickness

Suggested print settings

• Material: PLA / PETG / ABS (I used PETG)
• Layer height: 0.2 mm
• Walls: 4
• Infill: 25–40%
• Supports: On (only if needed depending on orientation)
• Print orientation: flange on the build plate

Measured dimensions shown in the photos

• Approx. outer diameter: 34.24 mm
• Approx. shaft-related measured width: 23.85 mm
• Approx. total visible height in assembled setup: shown in photos for reference

Included files

• Bottom_pololu_mount
• Middle_pololu_mount
• Middle_pololu_mount_old (older version)
• Middle_pololu_mount_old is an earlier version kept for reference. Recommended file: Middle_pololu_mount.

Notes

• Designed for Pololu 4756.
• Test fit before final assembly.
• This model was designed around my own hardware and use case, so please compare your motor dimensions before printing.
• This mount is designed to be installed with M3 screws.
• Make sure to choose the correct screw length for your own build.
• Real photos of the printed part and mounted motor are included.
• Hardware shown in the pictures is for demonstration and is not included.

If you print it, I’d appreciate a like, download, rating, or a photo of your build.