- Hi List:
Just an update on VDG #2 under design/construction. I am using the
top and bottom roller assemblies connected by a short piece of 8" pvc
pipe as a test jig for experimental belts. The top roller is PVC and
the bottom is nylon.
Using a short version of the belt keeps the cost down when
experimenting with different materials.
So far the best material I have tried is nylon impregnated with
neoprene. It is not stretchy so does not exhibit the wild gyrations
typical of a charged stretchy belt. On the other hand it does not
wrap around the crown of my rollers very well and therefore is kind
of unsteady in the tracking department. I am going to decrease the
pitch of the crown to better suit this material and see if the
Last but not least, a 5" wide belt @ about 60 mph, 70 deg F., 42%
R.H. was delivering 75-100 uA.
BTW, to cut this stuff into 6" wide strips, I rolled it up very
tightly on a piece of 2" PVC pipe, spiral wrapped it with Scotch
Electrical tape and cut the roll into 6" pieces using my table saw.
Worked like a charm.
Best wishes to all.