Victoria/Elliott rotary milling table

[Andrew Booth]

Help needed dose any body have any info on these rotary table.. I have have one but only got the 9ne indexing plate... should there be more then thr one plate...

 

[JMS1972]

Can you share a pic of the plate you have? I have an Elliot dividing head I can see if the plates are the same.

 

[fizzy]

A lot of people are 3d printing the plates these days - if you can find the info of course.

 

[JMS1972]

Could be a good use case for laser cutter too.

 

[fizzy]

Could be a good use case for laser cutter too.

Definitely

 

[Agroshield]

Could be a good use case for laser cutter too.

The difficulty with a laser cutter is the holes: they are relatively small, compared with the plate thickness, which lasers do not like and the finish on them needs to be reasonable for the indexing pin to drop into.

Can you share a pic of the plate you have? I have an Elliot dividing head I can see if the plates are the same.

There will be some similarity as the hole numbers all contain prime factors, but most dividing heads have a coarser worm ratio than rotary tables, so it is not an exact correspondence.

As an example, look at the Taiwanese Vertex rotary tables and dividing heads and compare hole numbers in their plates.

----

To the OP: the important thing to determine is the worm ratio of the table. That is, how many full turns of the handle give one full turn of the table. For that table, my guess is 90:1 but it could be 60:1 or 120:1 or 180:1. Once we know what the ratio is, there are a standard set of plates that go with each ratio.

I would also think that any 3D print version you find on thingiverse would be parameterised, so you can easily specify plate diameter, thickness, hole diameter, hole circle spacing and number of holes. See, for example, this one: https://www.thingiverse.com/thing:1908993

 

[JMS1972]

The difficulty with a laser cutter is the holes: they are relatively small, compared with the plate thickness, which lasers do not like and the finish on them needs to be reasonable for the indexing pin to drop into.



There will be some similarity as the hole numbers all contain prime factors, but most dividing heads have a coarser worm ratio than rotary tables, so it is not an exact correspondence.

As an example, look at the Taiwanese Vertex rotary tables and dividing heads and compare hole numbers in their plates.

----

To the OP: the important thing to determine is the worm ratio of the table. That is, how many full turns of the handle give one full turn of the table. For that table, my guess is 90:1 but it could be 60:1 or 120:1 or 180:1. Once we know what the ratio is, there are a standard set of plates that go with each ratio.

I would also think that any 3D print version you find on thingiverse would be parameterised, so you can easily specify plate diameter, thickness, hole diameter, hole circle spacing and number of holes. See, for example, this one: https://www.thingiverse.com/thing:1908993

I was thinking of Co2 Laser in plastic / mdf rather than metal.

My dividing head has a 1:40 worm I have a manual for it as a pdf, I probably got it from here victoria-dividing-head-40-1-manual

 

[Agroshield]

It is very remiss of me, but I neglected to mention this excellent site, where you can not only find a calculator for the number of holes you need for a given number of divisions for a particular worm ratio but also something that will produce a disk already divided into that number so you can make your own.

CGTK - Metalwork Calculators

www.cgtk.co.uk

 

[fizzy]

The difficulty with a laser cutter is the holes: they are relatively small, compared with the plate thickness, which lasers do not like and the finish on them needs to be reasonable for the indexing pin to drop into.



There will be some similarity as the hole numbers all contain prime factors, but most dividing heads have a coarser worm ratio than rotary tables, so it is not an exact correspondence.

As an example, look at the Taiwanese Vertex rotary tables and dividing heads and compare hole numbers in their plates.

----

To the OP: the important thing to determine is the worm ratio of the table. That is, how many full turns of the handle give one full turn of the table. For that table, my guess is 90:1 but it could be 60:1 or 120:1 or 180:1. Once we know what the ratio is, there are a standard set of plates that go with each ratio.

I would also think that any 3D print version you find on thingiverse would be parameterised, so you can easily specify plate diameter, thickness, hole diameter, hole circle spacing and number of holes. See, for example, this one: https://www.thingiverse.com/thing:1908993

You could use a laser to spot mark the holes then drill them out.

 

[Andrew Booth]

Can you share a pic of the plate you have? I have an Elliot dividing head I can see if the plates are the same.

Will take a pic when I can get to the work shop... I have part number

 

[Andrew Booth]

Thanks for all the information everyone...

 

[Andrew Booth]

Can you share a pic of the plate you have? I have an Elliot dividing head I can see if the plates are the same.

Can you share a pic of the plate you have? I have an Elliot dividing head I can see if the plates are the same.

This is the plate I have on the table..sorry for taking so long to get back but not been well

 

[Milkybars]

I have various 'orphan' plates that may or may not fit that ..do you have dimensions (particulary of the centre bore and the fixing holes)

 

[Agroshield]

As said above, you need to determine the worm ratio of the table - how many full turns of the handle give one full turn of the table. Without this info. any plates you do find will have limited usefulness even if they are physically the correct shape.

More important than the plates at this stage is the missing indexing fingers. Without them, it is very difficult to use the device. If you cannot or do not want to go about procuring them, you might be better to remove the plate altogether and put on a graduated handwheel.

 

[JMS1972]

This is the plate I have on the table..sorry for taking so long to get back but not been well

View attachment 310803 View attachment 310804 View attachment 310805 View attachment 310806

That looks very similar to the plates I have, I'll check and provide photos of the arms on mine and the plates.

 

[JMS1972]

It does match the plate that is on my dividing head.

I'll have a hunt for the spare plates later

 

[JMS1972]

Here's the second "B" plate.

And a few more pics if the missing arms.

 

[cr500dom]

I have to say, I have absolutely no idea how to use a dividing head

 

[Arc Tourist]

Nowadays there are video tutorials on youtube.

 

[Agroshield]

Nowadays there are video tutorials on youtube.

And it says a lot about technical education in this country that most of the videos are in Hindi.