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A4T

DraftShift Design

Overview

This guide will walk you through the assembly of an A4T (UHF) toolhead for StealthChanger.

Configurations

The A4T can be configured in numerous ways. This guide is an example of the A4T toolhead with a Rapido2 UHF hotend and a pre-assembled A4T WWBMG extruder.

Other configurations may differ from this guide.

  • For StealthChanger, only XOL variants of the A4T cowl can be used.
  • A4T toolhead requires the use of lower profile Z joints. hartk's GE5C Z Joint or Ellis' Short Z Joints are good options.
  • Complete A4T x1 [Link]
  • M3x8 BHCS Screws x2

  • M3x10 BHCS Screws x2

  • M3x16 BHCS Screws x2

  • M2.5x8 SHCS Screws x4

  • M3x8 SHCS Screws x5

  • M3x45 SHCS Screws x2

  • M3 Heat Insert x2

  • M3 Square Nuts x4

  • Rapido2 UHF Hotend x1

  • A4T WWBMG Extruder x1

  • EBB36 Toolhead Board x1

  • 25x10mm Delta Radial Fan x1

  • 40x10mm Centrifugal/Blower Fan x2

  • 4x2mm PTFE ~33mm Long x1

  • Neopixel LED x3

Assembly

In this guide we will be assembling an A4T (UHF version) toolhead.

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