quick? geometry question

[LucasGC]

Hi friends.

I have a segment length and angle that I want to continue to form a longer arc. Is there a pattern or something to do this?

.1" line at 1 degree

Thanks

 

[Guest]

Trim/Break >> Extend work?

[LucasGC]

if i made an arc i could break it into the right length but i wouldn't know where to start for the radius of the arc

I made two of these lines, created an arc with the three points, extended the arc, and then broke the arc back into the line segment lengths i needed. This way i know it's very close even if i don't know it's exactly one degree between each line

[David Colin]

I'm not sure to understand what you need but I guess there is a Mastercam command to achieve it.

Could you make a quick sketch ?

[JohnW@Kauffman]

Is this what you wanted?  Can't see it in the screen shot, but each line segment is .1"

[LucasGC]

25 minutes ago, JohnW@Kauffman said:

Is this what you wanted?  Can't see it in the screen shot, but each line segment is .1"

Almost, I tried it and if you zoom in the lines aren't connected

[CEMENTHEAD]

creating a horizontal line 10" long, rotate (copy) it from its endpoint +1 deg. offset the original down .100. Then create an arc from axis of rotation (endpoint of horiz line) to the intersection of the offset line to the rotated line. you get a Rad of R5.7299  which equals a .100 line length at 1° 

HTH

[LucasGC]

34 minutes ago, CEMENTHEAD said:

creating a horizontal line 10" long, rotate (copy) it from its endpoint +1 deg. offset the original down .100. Then create an arc from axis of rotation (endpoint of horiz line) to the intersection of the offset line to the rotated line. you get a Rad of R5.7299  which equals a .100 line length at 1° 

HTH

Hmm, not sure if I am following this. By the time I make my arc I should only have two lines? the original that's been offset and the one that's been rotated, and I have the intersection, but where do I make the arc from?

 

Edit: got it, then I would be able to create that arc and then break it into the correct length

edit edit: actually still don't got it. from beginning of offset line, to intersection, to end of rotated line?

thanks

[JohnW@Kauffman]

1 hour ago, LucasGC said:

Almost, I tried it and if you zoom in the lines aren't connected

On mine, the individual line segments are connected, and will chain.  How did you draw it?

[JohnW@Kauffman]

Here's an up close look at the line segments.  One is selected so you can see the end of it.

Try this:  draw a .1 line vertical (90 degree).  Then draw a second line at 0 degrees from the center of the .1 line, length 5.7294.  Now, try rotating the .1 line, 1 degree, using the end of the 5.7294 line as the center of rotation.

[CEMENTHEAD]

[jlw™]

Lucas, can you share a dwg or file or anything?

[LucasGC]

21 hours ago, CEMENTHEAD said:

Got it!

Thanks for the clarification pic.

JohnW your method worked too, I was rotating the segments about the endpoints, not the center point. 

Both of these work, thank you