by modem » Sat Jul 31, 2010 5:15 pm
fishyvishy.
In trying to help you out, i can answer question 1, but stay posted for someone who may be able to answer the others.
When you mount the instrument, most of what you are doing would be blind other than using a mirrow if you know what i mean, so when you use the screws to adjust, you will have to use your judgement to some degree, on how far to adjust. So what i suggest you do is, -- disasemble the unit before you apply it to the shaft. You will find that the adjustment screws are a left handed thread into the base closest to your body, and right hand thread into the head piece, concequently when the screws are turned clockwise you get extention of the assembly, hense turning the screws anti-clockwise you get the opposite.
Knowing this, and having disassembled the unit completely you can get an idea of how far you can unscrew the assembly before it calapses completely. You will also notice that it is important that both ends of the thread are evenly screwed in and out, so it is important that you do any adjustments by turning the screws only and not allow your fingers to touch the threaded barrels, as this will cause the barrels to turn and the threads will then get out of faze with each other, meaning you will end up with more threaded rod on one half to that of the other.So the trick hear is to be careful to avoid this when adjusting.
Having covered that part, -- now go back to the assembly again before you apply it to your shaft, and adjust the rods out untill they are within appprox three to four threads of dissasembly. Notice that when you place a finger each side of the center, it gives you an indication of where you are and you can then use your fingers as a guage as to where you are when doing this blind.
One other thing hear is that you will notice that the threads are easyer to turn when the assembly is straight out in front of you. This is another subject of the way the extender has been designed and i have covered this in my previous posts. However you will probably have already discovered this. I hope all this has helped you in some way and not confused. As for your other questions. I'm sure there are better guys out there than i to answer those for you.
Best regards, Bob.