I made it cause my Sickspeed covers (19mm) are made of aluminium and to prevent them for any scratches, I make an opener for them.
I Print it out of
and an other out of
which is much stronger
but you can Print it out of anything you want but i recommend ASA or Nylon
and maybe it's useful for someone, i made a 17mm & 22mm version
The author marked this model as their own original creation.