Small Manual Rotary Table
Last updated on Monday, November 28, 2022 01:42:47 PM Mountain US Time Zone

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Initial Alignment, Tramming, Part Setup Example,
Rotary Table Alignment Bracket, Vise Attachment,
Brackets, Miniature Toe-clamp Sets

Combining a mill & a rotary table provides an order of
magnitude increase in machining capability. Shown here
 is a 4" rotary table which is perfectly sized for a micro-mill.
The rotary table can also be combined with a tilting angle
table to further increase its flexibility. Indicate the mill first,
then the rotary table. With a dial test indicator mounted
in the mill spindle, tram the inside surface of the rotary
table's center hole. Mounting a chuck or vise on the rotary
 table allows holding many differently sized pieces.
The 4-jawed chuck is especially versatile since it moves the
 part in 4 directions. Exchanging the same sized parts is
easy accomplished by loosening & tightening only 2 jaws.

Initial Alignment

Used a properly sized dowel to perform
the initial spindle to table alignment.

Tramming

Completed the rotary table
tram with a dial test indicator.

Part Setup Example

Milling operation to make a rocker tool post is shown.
Using a center finder to set the part's center of rotation.

The mill table x-axis is then moved the radius of the
semi-circular cut compensating for the cutter radius.
Shown is a 1/4" end mill cutting a 1-1/2" diameter curve.

Procedures & formulas for rotary table use
are described in Sherline's instructions.

Two disks aligned using 1/4" dowel pins in the 1/4" slots.
A washer spaces them above the table surface.

Milled four, 1/4" diameter 0.127" deep notches every 90 deg.
The small (right) notches are witness marks.

Rotary Table Alignment Bracket

Using a 2nd, 4-inch rotary table, made a bracket to hold
the gauge while centering work in the small 4-jaw.
I can quickly center the work piece while at the bench,
then transfer the 4-jaw to the 4th-axis of the CNC mill.
This is for an initial centering only; the final tramming
is performed after it has been transferred to the mill.

This is an 8mm stemmed gauge but the sleeve can be
removed to allow holding a 3/8-inch stemmed dial gauge.

Drilling eight, #7 holes every
45 deg for 1/4-20 hand tapping.

Making a round, chuck to rotary table adapter plate.

Vise Attachment

Rotary table with one-inch vise attached.
Having perpendicular slots allows the most two-way
adjustability. The hardened screwless vise has M4-0.7
pre-tapped holes on the bottom & built-in parallels.

Brackets

The rotary table is mounted onto a base plate for quick vise mounting.
The plate is smaller then the rotary table base allowing it to rest on top
of the vise jaws. The base plate also has (8) holes that align with the Taig
mill table T-slots to allow direct mounting using 10-32 cap-head bolts.

Miniature Toe-clamp Sets

The toe-clamp sets can be used for the Taig
Micro Mill & the Sherline 4-inch rotary table.

Rotary-table base-plate for the Taig table.
Taig Mill table cross section

Right-angle bracket for the 4" rotary table.
Added an edge guide for easier set up.

Taig 4-jaw chuck mounted onto a Sherline tilt table.

Made an adapter plate to mount the
4" rotary table centered on the tilt table.
There is a 25 lb maximum weight limit for the rotary table.

CNC Rotary Table    Large Rotary Table

Click on linked thumbnails #ad
 

2 styles available, 1-pk or 2-pk:
3-5/8" x 3/4" & 5-1/2" x 1-1/8"