I have a question on how to convert a weldment part to a single solid body to run some simulations. I have tried to combine the weldments but seems like I was unable to combine the entire weldment structure to a single solid body.

I have also tried some other ways to combine the entire part to one single body, still it did not work for me.

Can you guys please help me regarding this issue.

I have attached a snapshot of my model below

Thanks,

Ronnie