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Large core drilling rig.
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Previously:
https://www.homemadetools.net/forum/...826#post198365
https://www.homemadetools.net/forum/...396#post188987
https://www.homemadetools.net/forum/...954#post175775
https://www.homemadetools.net/forum/...804#post129173
https://www.homemadetools.net/forum/...409#post211882
Interesting, surprised by that rpm, a serious rate of feet per minute, though hardly seems enough water to flush the cut. I notice an impact wrench advances the feed.
Let's hope that thing is cutting through a good amount of rebar...
I am not seeing an impact wrench. It seems it is using a pipe in the 4 spoke thing at the top to advance the cutter?
Agreed, that is how mine have worked.Quote:
Originally Posted by hemmjo
You 3 are correct. at 0'.08" there is sound of impact or rotohammer; same time as the cheater bar goes onto the 4 spoke feed wheel.
By shutting browser and toolbar menus, then able to see whole thing. The bit is advanced very slightly, maybe 2 degrees of the feed wheel.
:rofl:That "sound" that you're hearing is the worker tapping on the vessel being cut.