Imagine a block (say 100mm square, 50mm thick) with a sphere above it of about 200mm diameter. Now, lower the sphere into the block such that the bottom of the sphere is inside the block by 35mm and makes a depression in the block.
If the sphere was removed and the depression was left behind how would I draw, say, six sections of the block in Draw X5?
I just need to see the side-view of the section.
I can do this in Sketchup or DesignCAD 3D without problem but in a 2D I'm not so sure.
Any thoughts?
Steve.
Edit: Realised sphere should have a larger diameter than the base...
I didn't say it was your fault. I said I was blaming you!
Play as much as you like. :)I know I should cut a bevel but will be doing these on my laser so each will be at 90degrees.
All help appreciated.
Hello Brute-Fish; OK I think you got something there, ( You Win, Darn no beer AGAIN ), But I tried.............. Steve don't use a laser, Get a big block of steel and use a file.
GeorgePS Nice Job.
My turn:
The black would show the additional arc you would need along the length of each piece. I have include the .CDR file as well.
Let not the one who says it can't be done interrupt the one who is doing it.
Steve/George,I just found this so maybe that will give me even spacing:
To get the area though a plane that does not go through the center, you need to know the offset distance of the plane from the center of the sphere. Calling this distance d, the area is
A = pi * (R^2 - d^2)
[Positive values only. If the answer comes out negative, the offset distance is greater than the radius of the sphere, so the plane does not intersect the sphere]
This can be derrived from a simple 2-D diagram.
Read more: http://wiki.answers.com/Q/How_do_you_calculate_the_cross_section_area_of_a_sphere#ixzz1khcabeh3
Okay, maths is not my strong point...
What I did was draw the circle, place guidelines to set the supports and then measure the radius to the intersection. I then used back-minus-front to cut the relief from the supports at the different diameter circles whilst maintaining the same centre point.
I think this is it! I will try lasering a couple of pieces tomorrow:
Thanks for all the help guys... warm beers all round! :)
Steve:warm beers all round!
I could go for some bangers and mash or fish and chips instead -- been way to long since I was in the UK (1968).
Thank you... Bangers and Mash will now be Saturday's dinner, perhaps with roast-onion gravy... I have just developed a craving after reading your post. :)
Let me entice you more:
Enjoy Saturday night's feast then.
The most suitable for the job is a 3D program.
The more I know, the more I believe in God.
Weeeeellllllll Graewerld I have seen places in San Francisco I think that would be a hot item.
MY THOUGHTS George
I wouldn't admit to that! :)
Steve if you have ever had to go to San Francisco you would understand ( Believe Me )
Steve:I just need to see the side-view of the section.
Is it like this?
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