angle by arc length

[Jeremy Grigsby Excelsior Marking]

Id like to see the ability to input an angle for rotation by specifying the arc length/sweep of a particular arc. For example i have a 10 inch radius, i draw a line from the center of the arc. I now need to rotate it .400 in a 10 inch radius arc length. Right now I have to do a formula to find out what the arc length is. Although its a simple fomula, doesn't it sound as though it would be easy to implement into the angle menu? Or can you already do this and I've just been missing it.

[cadist]

You can do it, but after you have created arc go to analyze select arc and in menu that appears set edit to "y". A dialog box appears add .400 in sweep value and say apply, in the next block length is autmatically updated.

[Code_Breaker]

Jeremy,

 

This can be done by selecting rotate, and then in the box requesting the angle, enter A, you will get another dialog with the choice arc sweep. Select the arc and you are done.

 

HTH

 

Code_Breaker

[Jeremy Grigsby Excelsior Marking]

Thanks for the input. Yes I found the sweep dialog, but i dont need to sweep a full arc. I usually have a 180 degree arc laid in, but i dont want to have to lay out a bunch of asrcs at different lengths. I know I'm probably asking for too much. What would be great is you select the arc, or input the value of a radius, and then give it the distance and it would give you an angle. Right now I just have a spreadsheet set up in excel to calculate it but it would be really cool if i could do it in mastercam entirely. Maybe some other version.....

[cadist]

I didn't get you. you want arcs or values.

[Jeremy Grigsby Excelsior Marking]

I want to find a rotation angle of a particular distance of an arc.

I have a line drawn from the center of a arc to the intersection of the arc. I need to rotate it at a 1 inch sweep of the radius of my arc. if my arc were a 10 inch rad then the angle would be 5.729577951

If I had copy rotated my line and trim the arc to the two lines, if I analyzed this arc it would read a 1 inch sweep

[cadist]

In that case also you can use the analyze dialog. There is no need to have it a full circle create your arc and go to analyze and add the value in sweep. It does what you want.

[dourk]

Modify, Break, At Length, .400.

 

Xform, Rotate, {a} for rotation, Arc sweep, pick arc segement.

 

Modify, Join to repair arcs.

 

Only about a dozen keystrokes and mouseclicks

[Jeremy Grigsby Excelsior Marking]

There one i didnt know about, that way would work i imagine. alot of steps though. Thanks for the reply