Product Information

The hollowing system is an external apparatus that attaches to a wood turning lathe in order to hold and control the motion of cutting tools used for shaping and hollowing vessels and bowls mounted on the lathe. Wood lathes have existed for over two thousand years and most frequently have relied upon handheld tools to accomplish the shaping and hollowing of wood. This approach is adequate for smaller projects involving relatively uniform woods. However, for larger projects utilizing more interesting woods (burls, crotches, roots and stumps) that may include knots, voids, inclusions, debris, metal objects, and complex grain structures, a more robust method for holding and controlling the cutting tools is required. The present hollowing system is also useful for wood turners who may be experiencing certain physical limitations.

Taz Ultra Hollowing System


TAZ Ultra Wood Hollowing System for Wood Turners can now be watched on Vimeo and YOUTUBE:
Hollowing System Video

Previous hollowing systems may be broadly characterized as either "articulating arm" or "capture" types. For both of these hollowing systems there comes a point where the hollowing system becomes physically decoupled from the lathe. This decoupling can lead to hollowing system vibrations and resonances induced by cutting tool chatter and catches, making it more difficult to make accurate and repeatable hollowing cuts. The present hollowing system mitigates the possibility of tool chatter and catches with multiple techniques that include friction control, vibration damping, close and adjustable tolerances, and robust system mass.

Hollowing System  wood vessel hollowing syatem

The present hollowing system enables the longitudinal, lateral, vertical and rotational control of a toolbar that can hold a variety of cutting tools. The assemblies that comprise the complete system are interconnected in such a way that the friction and rigidity between the toolbar and the various assemblies can be controlled and varied easily. Moreover, the materials of construction for certain of the assemblies provide friction control and vibration damping.

This hollowing system will enable a wood turner to concentrate on the form of a vessel being turned on a wood lathe without being overly concerned with countering the various forces that are experienced as the hollowing and shaping of the vessel progresses.

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