[CAD_CAM_EDM_DRO] Gate timing belts

Thanks Gary.

The difference in timing gear ratio sure would affect
measurements- depending on how measuremnts were made.
Perhaps the tension is more responsible for the 60:1 difference they showed.

I think a 3 mm pitch x 9 mm witdth will do the trick for me.
I hope so... those components are not cheap. 3mm seems
to be capable of handling a couple horsepower at higher
rpms. The 680 oz in tooth jump will be ok for all but a
severe crash in my application. I hope they did not make an error in that
figure.

The belt size seems small for that much torque but that
is what I get from the figures. They now have GT2 3mm
in 15 mm width but no figures. It would seem that I would
get no better jump torque but have much higher bearing
loads so I will stay with the 9mm.

I had planned to go direct drive but got such a good deal on servos that I
am willing to go timing belt. The servos are a
little lower torque but high rpm. The moment of inertia is
very low so a 2:1 reduction gives just about perfect impedance
match.

I will be on the telephone to get some of those today. I don't
know if a distributor or Gates directly will be best but I will
try both if needed.

Sound about right for a 300 oz in drive with small timing
gear maxing out at 4000 rpm?

Thanks

Leslie Watts
L M Watts Furniture
Tiger, Georgia USA
http://www.rabun.net/~leswatts/wattsfurniturewp.html