Here  is  a  production  tip  from  @martindenoch  -  
“I  prepare  each  pin  by  melting  some  solder  at  each  end.  I  then  place  the  rings  on  an  old  hacksaw  blade  to  get  them  up  to  the  right  level,  and  place  them  close  in  touch  with  the  pins.  Then  I  heat  the  pins  so  the  solder  melts  and  pulls  the  rings  in  place.  Done!“  I  could  watch  this  video  on  repeat  all  day  long!  Love  the  set  up  and  also  love  that  it  is  a  great  example  of  heating  the  larger  component  when  soldering.  Thanks  Martin  we  appreciate  you  letting  me  share!  #soldering  #productionjewelry  #solderingmultiples  #solderingjumprings  #makingjewelry