Problem on Autocad Palnt 3D

[Anonymous]

hello every one

I have a problem with the design of heat exchanger, the body flange can't be on her place independent. every time I can't changer the dimension of little diametre

I will be thankful for your help. 

[h_eger]

Dear @Anonymous ,

Please post a #picture of your problem.

I think it's because of the overwrite mode you have to activate to enter your parameter