jgKRI,
What type of hydraulic device would be pushing this forward. My biggest question about this is how does the shaft push through the center? If it was threaded I could see it being pushed with some sort of gearing mechanism powered by a hydraulic motor. The shaft does not appear to be...
Still not sure how everyone things it moves forward.
From the video it seems that the device the shaft is going through also moves it forward. Do you think it moves forward with some sort of gearing mechanism? 3DDave and Mikehalloran, do you think that hydraulic cylinder or polygon drive are...
The video below shows a drill that has a long center shaft which feeds in one operation and spins in another. The big difference with this drill compared to others is the shaft is not connected in line with the motor. The purpose of this seems so that the shaft can slide in and out and the...
