Great progress has been made on the construction of the FECORE mechanical gyro. We appreciate the hours of labor and mental designing by Stefan Poiss.

This instrument will be used in the project Mechanical Gyro Motion Testing here on The purpose of the project is to verify the aspect of the Heliocentric model regarding a rotating Earth.

The primary difference between commercially available gyros and our custom build size is size. A manufactured gyro typically has a rotor disk of 112 grams. The FECORE gyro rotor is 3232 grams. That’s a 7.12 pound 7.63 inch diameter brass flywheel. It has been dynamically balanced at a rotation of 1500 rpm to .02 grams. The total weight of the assembly is about 10 kg (22 lbs).

Here is a picture of Stefan holding the disk so you can get a perspective of its size.

As of now a Dremel tool with a rubber end has been used on the outer edge of the flywheel to spin it. Speeds have been about 1700 to 2000 rpm. At that speed it takes 30 minutes to come to rest. Stefan will buy an electric motor and test if it can be attached or just used to spin it up to much higher speeds. Then he will perform precession testing at the various speeds.

The other major component of this test is the earth rotation simulator system pictured here.

The seven black boxes on the left are a series of step down gears. The input movement is in the upper right of the box matrix a motor controlled by the circuitry to the right. All of this designed and built by Stefan. The overall gear ratio is 1 to 284736. The system can produce rotation speeds on the base bearing from 5° to 70° per hour. With that range we can perform Foucault busting tests as far south as 20°.
Here is s close up of the LCD control display showing the variable degrees per hour rotation and the clockwise or counter clockwise direction selection read outs.

The first plans were made about September 28th, 2018 and this is mid January 2019. The progress has been good. To our knowledge this is the largest gyro ever prepared to perform this test.
Tests so far give us high expectations that this gyro might have little or no precession while at operational speeds.

FECORE’S success in this project will be a historic event. Thanks to all those who have brought us this far.