I received my FX120i and Autothrower/Trickler package from Cambridge a week and a half ago.
It was pre programmed, all I did was mount the thrower, level the scale, and start it up. I was immediately throwing charges to within +/- .02 grains. Some adjustment of the slider on the rear electronics may be needed to get a fast, accurate throw. I did no adjusting of the Trickler base for powder delivery, it works fine just sitting level on my bench. My bench is solid 1 1/2 thick plywood and aluminum top, and is bolted to the concrete foundation of the house, so it is level and rock solid.
There were no problems, it all went together OK, there was no programming needed by me. I did buy a calibration weight which I used once. I put two bends in the powder delivery straw to slow down the powder dump.
I did install the wind shield on the trickler side, and Dremeled a 1/2 dia hole for the trickler tube. Be careful in drilling a hole with a typical drill bit, which has a tendency to create cracks in plastics. You can also drill a small hole then file it to size.
The scale just sits there on a number. The number may change .02, for example from 29.20 to 29.22. It doesn't also change to 29.18, meaning it just varies by .02 , not by .04.
As to all the mumbo-jumbo about electrical stuff changing the readings, I had my cell phone in my pocket, I have a 8 foot two tube fluorescent fixture immediately above my bench, another one immediately in line over the adjacent bench, and another one about 5 feet behind and 5 feet to the side. The scale readings are solid, and only vary by .02, which is expected, as that is the limit of the resolution of the scale.
I also ran the setup on a battery pack, and results were the same. I have a 26000 mah pack that puts out 12 vdc at over 3 amps. BEWARE when using a battery pack, the polarity on the power input plug to the scale is reversed from most other electronic devices. Be sure you match the polarity of the power supply which comes with the package.
This package is a solid , reliable , accurate and FAST method of delivering a powder charge. I am very happy with the setup.
Congratulations to Adam and Cambridge for this great product package.
here's some pics;
You can see my progression of scales. I also have a Gem pro 300.
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