ADAPTING & EXCHANGING BALL SCREW
The screw in the new balls may be a different size and thread pitch than what your atomizer top requires. If the screw in the new ball is too small I usually supply 3 sizes of thin plastic tubing to put on the screw to get a tighter fit. If the thin one is not enough, then try putting the large one over the thin one. If this is too much, then try the thick one.
If you have your old screw from a deteriorated ball, it can be exchanged with the one in the new ball. This will insure the best fit. This is a tedious procedure which can result in ruining the ball. I charge $10.00 to do it for you. For those so inclined here are instructions to do it yourself:
To remove the screw from the new ball, using sharp scissors carefully cut only the drawstring thread that holds all the loops of the netting at the top near the screw. This will loosen the netting so take care. Next, using a needle and strong thread matching the net covering, make a new drawstring by threading through each and every loop, a few at a time. Leave the ends long enough to tie, but first pry out the screw using pliers.
The head of the old screw should not be much larger than the one you removed. Grind it smaller, if necessary, so it can be inserted into the ball. You can use an ice pick or similar pointed tool that will go into the screw to hold it for inserting. You can apply a tiny amount of Vaseline or similar material to make the screw slide in easier. Do not push the screw too far into the ball. There is usually a second lip inside the ball and the screw should lodge between the two.
Now you are ready to tie up the drawstring tight and use 2 or 3 knots. Tuck about 3/4 inch of the thread ends into the netting. I use a knitting machine needle to do this.
Some older atomizers have a very large pewter screw with a huge head, where the ball will go up at about a 45 degree angle. Many times this screw is missing. If this is the case, you need an adapter to attach the new ball. Please request the large gray adapter at $3.00. If you have the old screw, it can be adapted to the new ball. I do this by cutting off the large head and putting the new ball screw into the hole. Usually the hole is small enough and the metal soft enough to just thread the new screw in by hand. You may have to add a thin adapter tubing sleeve to the new screw if the hole in the old screw is too large. Or just revert to using the large gray adapter.
Some atomizers have an arm with a thin disc shaped cap near the end followed by a smaller threaded tube. This takes what is called an inside threaded ball. This is a fitting inside the ball rather than a screw sticking out. In this case, you can insert your old fitting following instructions above. If this fitting is missing, you are out of luck.
FOR BALLS THAT DO NOT SCREW ON
Dental Plaster Instructions :
For comments or questions please email PARADISE & CO..