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Radius Problem


coin-op

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I'm trying to teach myself ACAD2004 and am working through some practice sheets and I've hit a problem that I just cannot solve.

 

I want to draw an arc (that according to the drawing I am working from is part of a circle with a 50mm radius) between a circle and the corner point of a line.

 

I've attached a .jpg and my .dwg if someone can advise me how to do it I'd be grateful.

 

I suspect that it is not entirely straight forward and a little ACAD voodoo will be involved.

 

Thanks :)

handle & spanner.dwg

handle & spanner.jpg

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not sure there is a command for this but you can work it out using your radius information, like this.

1, draw a circle of radius 50mm with its centre on the end of the 16mm straight line near the middle of the handle

2, draw a circle of radius 60mm with its centre on the centre of the radius 10mm bulb at the end of the handle, (60mm is your connecting arc radius + the radius of your bulb)

3, where the 60mm circle intersects the 50mm draw a third circle with a radius of 50mm

 

you should now be able to trim the last circle you have drawn to achieve your goal.

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hehe it all comes with experience i was trained on the old drawing boards where we had to construct everything :), ah the good old days lol, what a pain.....

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Groutie, I don't think it has a use! :) It's just an exercise sheet I was given for drawing practice as I'm an AutoCad newbie. I like your 3D drawing. Waay beyond my ability at the moment though but hopefully I'll be there soon.

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  • 2 years later...
Look into the Tan Tan radius option under the circle command...See if that helps

 

I tried this in the first drawing but it didnt help

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try this.

Ive used steps in cad

 

Strange When i tried this it didn't work??? I'll try it later on,

There is a slight difference between the 60-50mm cirlce solution and the arc start end radius.

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1. make a line bet. the circle and and the rectangle to join your arc.

2. make a perpendicular line with a length of 50mm

3. draw a circle with Ø50mm

4 draw a line end-end to the drawn upside -down "t"

5 move the circle intersecting the diagonal line, eithe of the diagonal lines.

6 trim.:oops:

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