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Reduce the runout of the main drive gear on your Dual Drive extruder.

A very solid, reliable and improved solution from Bondtech that provides a slight improvement to the print surface quality.

Designed for the following Open Source extruders:

• HextrudORT;
• Sherpa Mini;
• Voron Mini StealthBurner.

Why a V2?
The OEM RIDGA V2 allows for ideal engagement between main gear and an 8T or 10T motor gear, while retaining a safe distance between the stepper motor and gear assembly.

When adapting this piece of hardware into your design, make sure to allow for a bit of axial play in both directions, in order for the filament path to retain some level of self-correction.
The bearing facing the motor face should have about 0.4 mm of material between it and the motor face in order for the plastic gear to retain as much engagement as possible.

The OEM RIDGA V2 is designed to allow for maximum compatibility with the following Open Source extruders:

• HextrudORT;
• Sherpa Mini;
• Voron Mini StealthBurner.

It must be used with 5x8x2.5 mm ball bearings (INCLUDED).

This RIDGA, Reverse Integrated Drive Gear Assembly, replaces the following mini drive train items:

• Main shaft;
• Main gear;
• Set screw;
• Primary drive gear

Technical Specification

• Shaft length: 26.6 +0/-0.05mm
• Shaft length to support ball bearings : Main Gear side < 2.6mm - 2.8mm > drive gear teeth side
• Filament teeth’s center to end of shaft : Main Gear side < 12.8mm - 13.8mm > drive gear teeth side
• Number of drive gear teeth : 17
• Drive gear teeth length : 4mm
• Integrated drive gear Material: Hardened Steel
• Materials Compatibility:
• Flexible : yes;
• Rigid : yes;
• Abrasive : yes.
• Number of main gear teeth : 50
• Main gear teeth length : 3mm

When assembling an extruder, the sequence of component insertion of the RIDGA differs from the multi-piece version of the classic BMG main drive gear assembly. The drive gear section of the RIDGA can’t be inserted before the gear shaft because it is integrated. Needs a wider hole to pass through.

The Open Source extruder you printed may likely need a custom integration design to support the OEM RIDGA.

Please contact the designer or author of your extruder, or consult within its community, to get help with this.

Buy a Bondtech RIDGA v2 from Spool3D for your 3D printer in Canada without the surprise cost of the exchange rate!