Click for "Making of a Tumbler"
(Kelowna, 2 February 2016)
Today the completed vibrating rock tumbler was installed in Lindea's workshop.
(Kelowna, 31 January 2016)
Today the vibrating rock tumbler that I am building for Lindea was finally ready for testing.
It is made with the tub, eccentric weight and suspension assembly from a failed Covington tumbler. The original machine had the electric motor mounted as part of the vibrating mechanism which failed due to vibration. I deemed it to be an idiotic idea to expect an electric motor to survive a suitable lifetime with such continuous harsh vibration.
I have selected the rest of the necessary parts and engineered, manufactured and assembled everything else. Now the motor is mounted on a fixed base free of the vibration of the tub.
The first test run was very noisy with much clattering due to two loose bolts holding the bearing for the upper shaft. Once I took apart the unit, tightened the bolts and reassembled it all worked well. There are a few tweaks to be made, as expected.
Now I'll disassemble the machine, paint the parts, install the switch, put it all back together, run a final test and mount it to the floor of Lindea's workshop.