And on we go with the filler neck. Starting with a 55x55x12mm piece of AlMg3:
Drilled a center hole in the middle on both sides:
And put it on the lathe between centers:
With this short geometry this set up isn't ideal, but it works, if you only make light cuts.
Second side was done in the calssic three jaw chuck:
The finished filler neck viewed from below:
...and above:
The filler cap fits perfectly:
Now it's really starting to get exciting!
Andreas