Help with drawing

[UCAssistantCAD]

Awesome! Thank you. I also need a little help on another design. Im not sure how to create the other small circles or the teeth...

 

 

[ReMark]

The six inner circles can be duplicated by creating one circle then using the Array command.

 

You can use the same technique to do the teeth. Make one then array. The center point for both arrays would be the center of your main circle.

[f700es]

Look at the array (Polar) command

[UCAssistantCAD]

Alright so I did the circle's no problem with the polar array. Now with the teeth I made one and can't seem to properly use polar array with it. When i use the polar command I cant match it up properly..I'm not sure what to do so I can make each end meet properly. Any clue?

 

[fuccaro]

When you draw the first tooth, be sure it has the ends on the circle and that there are exactly 360:24=15 degrees between the circle's center and the two endpoints.

I would draw two lines starting from the center, with 15 derees between them. What you draw on the circle between them, it will be repeated 24times when using the circular array command.

[ReMark]

Either the number of teeth is too long or you input the wrong number of teeth to fill the 360 degrees thus the reason for the overlap. I believe the diagram tells you how many teeth there are.

 

OK, I just checked my drawing and there should be six "teeth" per quadrant or a total of twenty-four teeth.

Edited October 9, 2012 by ReMark

[ReMark]

I used the "tooth" shown in red above to create my polar array. The ARRAY command and my inputs:

 

Command: -ARRAY (I use the classic Array command since I don't like the new one.)

Select objects: 1 found

Select objects:

Enter the type of array [Rectangular/Polar] : P (Polar)

Specify center point of array or [base]:

Enter the number of items in the array: 24

Specify the angle to fill (+=ccw, -=cw) : 360 (I could have accepted the default. I did this just for emphasis.)

Rotate arrayed objects? [Yes/No] : Y (I could have accepted the default.)