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CNC mill - steady rest for 4th axis

A steady rest specifically for milling on a 4 axis CNC mill


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This is a very simple steady rest to support parts mounted in the 4th (rotational) axis of a CNC mill.
It supports the stock while milling from the top using a down-spiral or straight flute cutter.
(an up-spiral cutter would lift the stock)

It is designed for T-slot tables with M6 bolts.

2x 608ZZ skateboard ball bearings
4x M8x25 or longer hex-key bolts (or hex bolts)
4x 8.xmm washers for the bearings to not be clamped
2x M8 wingnuts
2x M8 nuts

Updated: Now also works on T-slot tables with 9mm slots and 72mm gaps e.g. on the YOOCNC 6040+Z.



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Mini rhondalillieRhondaLillie added this to the hi collection ago
D3b35592225f429d97ca70eab131b54c?default=blank&size=40Makerjoe added this to the 3D Accessories collection ago
14a5aa9f002724cfdc26d4246a356c67?default=blank&size=40Daniel Garrido added this to the Herramientas collection ago
Mini 20160503 014.pngMuhin555 added this to the CNC collection ago
730a061596c420c8915d9f20bd5d89e1?default=blank&size=40Marcus Wolschon published this design ago