Self puller: Wire-Pulling Guide

Keep your wire pulls smooth and your insulation intact!

The Self-Puller Guide is a must-have for any electrician without an apprentice…. Designed to snap directly onto standard 4-inch square and 4-11/16-inch metal junction boxes, this guide creates a smooth, rounded path for conductors, eliminating the sharp edges of the box that cause snags or wire damage.

Key Features:

• Canadian Compatibility: Fits both common Canadian commercial hubbell 52151K, and 72171K box sizes.
• Anti-Snag Design: Features a wide, curved "U-channel" to support multiple conductors at once.
• Single-Part Print: No assembly required—ready to use right off the build plate.
• Quick Install: Snap-on design allows for one-handed installation and removal, even in tight spaces.
• Center Clearance: Designed with a center opening to accommodate EMT connectors and conduit, allowing you to pull directly into the pipe without removing the guide.

Printing Recommendations:

• Material: PETG 
• Infill: 25% or higher (I use Adaptive Cubic) to handle the tension of heavy wire pulls.
• Walls: 3–4 wall loops for structural rigidity.
• Orientation: Print standing up on the bed for maximum strength and smoothness along the guide curve.