turning a square hole into a round one

[MikeMech]

I have used mastercam in a simple method for a while now. but today, I want to turn a square hole into a round hole at the bottom of my project.

 

Square at the top of part is 2x2 inch.. round hole at the bottom is 1.57 inch. So I tried cone. I can not turn the top round section into a square. I tried to create a sqaure at the top of part, and wanted to create a circle at the bottom of the part, but I have not figured out how to make a create at the bottom of part. then I would just join them with a flowline it seems. I need the transition to be smooth from top to bottom. So the top square would turn into a nice smooth circle about mid section and funnel down to the 1.57 at the bottom. I have 2.5 inch of distance top to bottom also..

 

thanks for any direction... even if you just tell me what help section to read. I tried searching the forum too.

[Guest]

A lofted surface will do it

 

Something like this?

 

[MikeMech]

darn, mine looks nothing like that.. I will keep trying.. thanks

[Guest]

I broke the circle in 4 pieces starting at 45 degree, then when I chained the loft chains I synced then by entity.

[MikeMech]

I just cannot create that cirle at the bottom of my part. it is on top, and when I loft, it is a mess of lines

[robh]

I think you need all your chains going the same direction or things get twisted up.hth

[88Matt]

create your circle and square at proper z depths.

looking in top view plane, break the right side line in half.

use ruled surface and chain the circle first, seeing which direction the arrow is pointing.

select the square so that the arrows are pointing in the same direction and are on top of each other. this will sync the geo together as well.

if the arrows are pointing in different directions it will be a total mess. if not synced it will looked twisted.

hth

 

Welcom to the forum!

[88Matt]

quote:

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I just cannot create that cirle at the bottom of my part.

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analyze the circle.

change z to the proper depth.

hth

 

what version r u using?

[MikeMech]

OMG... thank you .. circle to the proper Z depth.. so simple a thing one forgets.

 

x2 BTW..

[Thad]

Where are you at in MI, Mike?

 

Welcome to the forum!

 

Thad

[MikeMech]

thanks thad.. I am in Texas today. Only was working in MI when I registered back in 07.. just dont post much.. use the search alot.

 

Thanks to all that posted. I have it now.