Renkforce Pro7 Dual

The Renkforce Pro7 Dual is an FDM 3D printer from Renkforce with a 360 x 250 x 200 mm build volume.

Specifications

The Renkforce Pro7 Dual is a fully enclosed FDM (Fused Deposition Modeling) 3D printer featuring an Independent Dual Extruder (IDEX) motion system. Marketed by Conrad Electronic under the Renkforce brand, the Pro7 Dual was engineered for high-reliability multi-material printing, soluble support integration, and batch manufacturing using duplicate and mirror print modes.

Build Volume: In single-extruder mode, the printer provides a spacious build volume of 360 mm × 250 mm × 200 mm (width, depth, height). In duplication or mirror mode, the X-axis build envelope is divided in half between the two print heads.

Calibration

The IDEX system on the Renkforce Pro7 Dual requires precise calibration of the spatial alignment between both nozzles across the X, Y, and Z axes.

• Primary Toolhead (T0) Leveling and Z-Offset

Before aligning the secondary toolhead, you must establish a baseline with the primary left nozzle (T0).

• Step: Clean the bed with IPA. Use the manual bed leveling utility to tram the bed relative to the left nozzle (T0) using a feeler gauge.

Common defects

• Hardware defects and mechanical weaknesses
• Heat Creep due to Fan Failure:
• Symptoms: Extruder jams and motor clicking after approximately 1 hour of printing.
• Cause: The small cooling fans on the hotend heat sinks are prone to slowing down or failing due to dust buildup within the warm enclosure.
• Solution: Inspect the fans regularly and replace them with high-quality ball-bearing fans if they show signs of wear or noise.
• Parking Endstop Drift:.

What it is used for

Best use-cases:

• Printing with Soluble Supports: Ideal for parts with complex internal geometries, undercuts, or print-in-place assemblies, using water-soluble PVA supports.
• Batch Manufacturing (Duplication Mode): Useful for double-speed production of identical small parts by printing two components simultaneously.