...because today this piece of china-glass bothered me once too often! I really can't have such wobbly glass-joints, it is like using such a stinky self-made plastic-bottle-bong from the youth time. 
So let's think for a moment...
The connections are ground. So why not just regrind better?
Since, at least here in Germany, glass processing tools are very difficult to get, and for one-time use an expensive purchase is certainly not worth it, I went into my shop and to the lathe.
Result:
2 cones with the right angle, and an additional ring for the opposite side made out of whatlaysaround^^ (male-cones are made of steel, ring is aluminum).
Crosscut with the handsaw for the abrasive and ready to go!
Using SiC powder in P240 / P400 and a little water, it actually went very well!
Here are a few pictures. Starting with this:
First i made some lines with an edding (sharpy) to see where we startet. Then add some SiC-powder P240 mixed with water, and let go:
After maybe 2min of grinding (and always adding some drips of water!) :
The same for the outside of the joint using the ring (turning by hand this time) :
And again after some minutes:
I also did the upper 19/26-joint and the one in the mouthpiece. Tomorrow i will make another ring for the male 19/26 joint on the bubbler and regrind that, too.
But here is what it looks like now:
Where the lines are gone, the glass has be reground and offers a matching fit now.
Sure i could grind that longer and deeper, but it already offeres a nice and snug fit and i don't want to grind too much because of stress in the glass.
The tools show no wear, so it seems like they can be made only out of aluminum for such individual applications.
It's fascinating how much of a difference it can make....
The joints can now be plugged and unplugged very well, and that short lift for emptying the glass is finally fun.
This was definitely worth it!
So let's think for a moment...
The connections are ground. So why not just regrind better?
Since, at least here in Germany, glass processing tools are very difficult to get, and for one-time use an expensive purchase is certainly not worth it, I went into my shop and to the lathe.
Result:
2 cones with the right angle, and an additional ring for the opposite side made out of whatlaysaround^^ (male-cones are made of steel, ring is aluminum).
Crosscut with the handsaw for the abrasive and ready to go!
Using SiC powder in P240 / P400 and a little water, it actually went very well!
Here are a few pictures. Starting with this:
First i made some lines with an edding (sharpy) to see where we startet. Then add some SiC-powder P240 mixed with water, and let go:
After maybe 2min of grinding (and always adding some drips of water!) :
The same for the outside of the joint using the ring (turning by hand this time) :
And again after some minutes:
I also did the upper 19/26-joint and the one in the mouthpiece. Tomorrow i will make another ring for the male 19/26 joint on the bubbler and regrind that, too.
But here is what it looks like now:
Where the lines are gone, the glass has be reground and offers a matching fit now.
Sure i could grind that longer and deeper, but it already offeres a nice and snug fit and i don't want to grind too much because of stress in the glass.
The tools show no wear, so it seems like they can be made only out of aluminum for such individual applications.
It's fascinating how much of a difference it can make....
The joints can now be plugged and unplugged very well, and that short lift for emptying the glass is finally fun.
This was definitely worth it!
