how to use a rotary table and dividing plates for sale

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If your table has a ratio of 90:1 then you will have to turn the dial 90 turn to make the table go around once. That means that you divide 360 degrees by 90 turns and you get 4 degrees per turn. Simple enough.

Now lets say that you want to cut something that has 4 slots in it. Divide 360 by 4 cuts. That gives you 90 degrees per cut. So haw many turns to make 90 degrees? Divide 90 by 4 degrees and you get 22 1/2 turns. (90 turns divided by 4 will give you the same results) You could do this one by sight but it gits harder when you are cutting gears or something with odd numbers and lots of teeth.

So here is what you do. This is where the plates come in! This example is easy but the theroy is the same. You only need a plate with two holes but since there is no such thing you will use any plate that the row of holes you want to use will divide by 2 since you need half turns. Set your index arms so that the pin on your arm falls inside the dividing arms. Set them so that you can find the next hole of the same count. IE: If you used a 24 hole plate then you will have 12 holes between the arms thus giving you half turns each time you index.

So count off the 22 turns then the 12 holes on the index plate. Move the arms once you establish this hole. Do this four times and you have the four slots at 90 degrees.

All you have to remember is that you need a plate that the number of holes will divided by the fraction of a turn that you have left after turning the full turns. IE: 3 1/3 turns needs a plate that the holes will divide by thee. 5 1/5 turns needs a plate that will divide by 5. 2 1/8 turns needs a plate that will devide by 8.

The number of full turns has nothing to do with the plate hole count. Only the remaining partial turn needs to be indexed. You have to count the full turns youself. Using the RT degree scale helps make sure you counted correctly if you get interputed. It happens!

I have an 8" Rutland horizontal/vertical RT made in Taiwan that is about all I want to carry around without mechanical help. It has done all I ask of it, and a larger fixture plate mounted to the top of the table could be up to any diameter I care to make it. It is a high quality RT, and I am happy with it. Just went out and weighed it on a bathroom scale, said ~55 pounds. I also recently picked up a beautiful old adjustable height tailstock for it. It is also very heavy and solid, maybe 25 pounds.

I also have a 6" swing dividing head (no maker"s mark, WWII?) with two sets of three dividing plates, two D.E. Whiton 1-3/4" 8 tpi mount chucks (3 and 4 jaw, also marked Rivett!}, and #9 B&S spindle tooling for it as well, and a mill mounting table adapter plate that holds the dividing head and the tailstock to it for quick mounting to the mill table. Throw it on the mill, tighten 4 bolts, and it is ready to use, with less than .001" tolerance fit everywhere.

Given the choice between dividing head and rotary table, I vote for both! The jobs they do are mostly quite different, and one does not work for the other very well. In a pinch, yes, it can be done.

Cut gears with your rotary table by using dividing plates (index plates) to get the exact divisions. You can also precisely divide a circle into a number of divisions or degrees, cut bolt hole circles, or mill polygons with the use of these dividing plates. 33-101 is a 3-piece set that fits on your 6" rotary table, 33-100. 33-106 is a 2-piece set that fits on your 8" rotary table, 33-105.

Vertex Dividing Head 189mm Swing 18 Hole 100 Centre Height. 18mm Spindle Hole. Can divide in any angle by the direct, indirect or different methods. The Ration between the worm and worm gear is 40:1. Indirect indexing of all numbers from 2 to 50 and many numbers up to 380 possible. Complete with dividing plates, centre and tailstock.

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VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.

VEVOR is a leading brand that specializes in equipment and tools. Along with thousands of motivated employees, VEVOR is dedicated to providing our customers with tough equipment & tools at incredibly low prices. Today, VEVOR has occupied markets of more than 200 countries with 10 million plus global members.

The mill rotary table is one of the main accessories of milling machine. As a precision work positioning device, it is widely used for indexing drilling, milling, circumferential cutting, boring, etc. The rotary turn table for milling machine is made from casting with high quality, can work with a set of dividing plate.

Both vertical and horizontal with two functions. Circle cutting, indexing drilling, milling and more complicated work are possible when the vertical position of the table is used together with the tail part.

Three dividing plate set(Plate "A" - 15, 16, 17, 18, 19, 20 Plate "B" - 21, 23, 27, 29, 31, 33 Plate "C" - 37, 39, 41, 43, 47, 49). A set of wrench and screws are free for you with your installation.

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