Corner Radius Problem...HELP!

[boydt]

This seems so simple but it continues to battle me.

In the picture you see purple surfaces... these represent my real model surfaces, the gray rads are modeled at .050 but I need them at .125! I have tried so many ways to get this in there, I am at wits end. Can someone help me pull my head from my butt?


2006-04-20_160423_prt0001.prt.zip


View attachment 2147

 

[megaladon]

this one is pretty rough but got it to go


2006-04-20_164659_a.prt.zip


View attachment 2148

 

[appinmi]

Create the verticle round first by using "surface & edge". Then create the remaining.

 

[boydt]

megaladon


Thanks for your help, I am wondering though... What was the first vertical .060 radius for?

 

[megaladon]

if i put the .125 in first it fails it need a smaller corner rad in that area to transition all around then i came back with the full round size there


sometimes you fudge things to work

 

[boydt]

That makes me feel better... I thought I was the only one that fudged things in Pro.


appinmi,


I tried your suggestion (at least I think I done it the way you suggested) and it did not work. It makes the 2 horizontal rads want to overlap... essentially it errors out.


Thanks for all the help guys

 

[michaelpaul]

That makes me feel better... I thought I was the only one that fudged things in Pro.


appinmi,


I tried your suggestion (at least I think I done it the way you suggested) and it did not work. It makes the 2 horizontal rads want to overlap... essentially it errors out.


Thanks for all the help guys

it's not that your fudging, if a round can't be created, generally it's becuase the geometry won't allow it. Sometimes you have to create the rounds in multi-steps instead of all at once to get it to work. Other times, nothing seems to work other than using a smaller round in an area where the larger round is losing tangency.

it's just one of those things that takes some trial and error before you get it right.

Michael

 

[appinmi]

Sometimes, you have to think about manufacturing this part. Create the outer boundaries @1.00 tall first. Then create the .250 shelf with the fillets using a "sweep". (Kind of like using a ballnose endmill).


View attachment 2162


2006-04-21_125935_prt0003.prt.zip

 

[megaladon]

Sometimes, you have to think about manufacturing this part. Create the outer boundaries @1.00 tall first. Then create the .250 shelf with the fillets using a "sweep". (Kind of like using a ballnose endmill).


View attachment 2163


2006-04-21_125935_prt0003.prt.zip

perfect analogy took me a while to think like that but thats exactly how you have to do it