# How to create a ring of circles, like road wheel nuts

I am trying to create a road wheel which has a ring of circles within a wheel. I need a ring of 30 circles for the outer circle, a ring of 12 circles in the middle and 6 around the centre. which are for the wheel nuts, if you get the picture what i am trying to create. I can draw equal circles of any size and centre them within a circle but not sure on a easy method to form a ring of circles within a circle. See picture.

This can be accomplished with the circular array tool. See here for more information:
Modifier Tools - LightBurn Software Documentation

2 Likes

It sounds like the circular array tool is what you want Modifier Tools - LightBurn Software Documentation

2 Likes

I will give this a try, thanks for your help. I will get back to you how i get on.

1 Like

Hello Mr Abraham & all others:
I don’t know why but I have been in a STUPID & FUNNY mood all day today. I myself have never used the
array tool in LB, but you don’t need it!! All you need is a sheet of paper, a compass, a protractor, metal math compass for geometry, blue painters tape ( I like blue), a kitchen table and some kids, you have to have kids !! If you don’t have any then barrow some from down the street! This is where you teach them about math, directional location, calculating degrees between points in a circle, using mechanical drawing tools and best of all, you get them to do the WORK for you !! It will be fun !
Randy
PS. – I myself need to go check out LBs modifying Tools.

1 Like

I usually use maths to calculate sizes angles etc especially in modelling and scaling which i use the laser cutter for. Its a great tool, learning all the time. I think every kid should learn it, it taxes their brain. I wonder if they had this technology back in the days of early ship building etc when large plating for tanks, ships etc had to be cut by hand marked out on the plating with chalk and hand fitted to each section and riveted in place. Were a laser or water jet cutter can cut the exact precise line to the mm.

1 Like

Yes they did have it. They called it “CT&G” (cutting torch & grinder!) LOL About 50 years ago I was up in the state of Maine and got to go to a schooner ship museum. That was cool! Did you know that the hauls of schooner ships are as thick as 42 in". Hauls were made of 3 layers of planks each being 14" thick and they used as many as a dozen different kinds of wood depending on what part of boat they were building and half of the wood was from other countries. The amount of hand work was beyond your imagination. And the time it took.
Randy

Right i had a go at trying to Circle array the wheel in the picture. First i made a large circle about 13mm and then a small circle of 2mm that will surround the wheel as a set of wheel nuts etc. I placed the 2mm circle on the 13mm line and nice and centred at the top. I then selected both circles as one. I couldnt click one and the other so both are high lighted, i could only do one or the other. I then clicked the circle array tool. Up popped the information box, i then clicked for 12, 2mm circles to surround the 13mm circle, at the same time showing the spacing between each small circle. I then clicked OK at the bottom of the box. I then got 12, 2mm circles surrounding the 13mm circle but also 12 extra 13mm circles surrounding the original 13mm circle. In the end i had to delete each circle one by one to get the circle of 12, 2mm circles around the larger one. Why am i getting the extra 13mm circles 12 times?

Select the 2mm circle then whilst holding down the ‘shift’ button select the 13mm circle then apply the circular array,

Hold the `Shift` key down when you click the second object.

There are other ways to do that, so a few minutes with the doc will get you up to speed:

Click the little circle, shift-click the bigger one, click the `Circular Array` tool, make sure the `Use last selected object as center` is turned on, and away you go!

1 Like

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.