Boolean tool
 

ok im on the part where i have to boolean the arms to the body of frank. i did the head and that went fine but now i have to connect the head and arms together they dissapear even when i push the arms in all the way they still dissapear so i cant see that there not connected properly can be the problem i have also deleted the history for both parts i have searched around and havent found an answer can anyone help me? thanks josh