connecting lines

[reevesnicholas]

Im new to autodesk fusion 360. 

I started to make a sketch, and there is a few things i cant seem to find or do.

The line wich I made a construction line, how do i connect the horisontal lines to the half circle. So they become one continiouse line.

I also want to mark points of specific length through the construction line. My issue here is that i want the length to go paralell to the circle, not in a straight. Is this possible to do?

Ill put a picture to illustrate.

[wmhazzard]

There are no horizontal lines in your image so it is not clear what you want. Can you draw with a pencil and paper what you want. 

I see several lines that have the same dimension, it is better to dimension one line and use the equal constraint to make all of the lines equal. 

[reevesnicholas]

Thanx for the feedback!

My bad, i meant the vertical lines. The one from the bottom that connects to the half circle.

Ill put another picture up, maybe you can see what i mean here 🙂

 

[wmhazzard · Accepted solution]

I think that you want to use a 3 point arc instead of a line and that you want the length of the arc to be 26. There is no way to directly dimension the length of the arc in a sketch but is can be done with a driven dimension and formula in a parameter. 

See this post, it may help. 

https://forums.autodesk.com/t5/fusion-360-design-validate/can-i-set-the-length-of-an-arc/m-p/1093501... 

[g-andresen]

Hi,

If you would say what you want to achieve in the end, we could give more specific hints and help to avoid unsuitable ways.

Günther

[reevesnicholas]

thanx! 

I will check these out 🙂

[reevesnicholas]

Good idea!

So what i want is the length from A to B. Say the total length is 260mm and I want to split up the length 10 times. Thats 26mm each section, but doing it the way i have done it I end up having example 270mm total.

I guess I have to do the formula in parameters.

 

[TheCADWhisperer]

@reevesnicholas 

Why it this thread marked solved -  you haven't solved your issue.

Unconstrained (blue) lines should drive you crazy - you shouldn't be able to sleep at night with blue lines.  
Check back in a few minutes...

If you want distance from a to b to be a certain distance - then logically it would make sense to dimension that distance.

Notice that my sketch is black (fully defined).

Notice that the 10 arcs are equal length...

[TheCADWhisperer]

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@reevesnicholas wrote:

That's 26mm each section... 

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No, no it is not.

Not if you want equal length arcs.

Are you after arc length or are you after chord length?