Vibrating concrete forms with a hammer drill - GIF

Vibrating concrete forms with a hammer drill.

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Previously:

Vibrating concrete comparison with spiral ribbed rebar - GIF
Vibrating concrete on stairs - GIF
Vibrating concrete screed - GIF
Vibrating precast concrete mold - GIF

Is it a broken hammer drill? Are they using it with the chuck loosened so it doesn't spin the drill bit?

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Originally Posted by nova_robotics

Is it a broken hammer drill? Are they using it with the chuck loosened so it doesn't spin the drill bit?

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Nova, probably has it set in "hammer only mode" - mine has that for when you put a chisel bit in, and you don't want the bit to spinn, but jolt. It basically acts like a small jackhammer in that mode.

Quote:

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Originally Posted by desbromilow

Nova, probably has it set in "hammer only mode" - mine has that for when you put a chisel bit in, and you don't want the bit to spinn, but jolt. It basically acts like a small jackhammer in that mode.

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That's neat. I've never seen a drill with that setting before. All of my hammer drills have two settings. Spin the chuck with no hammer and spin the chuck with hammer.

Quote:

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Originally Posted by nova_robotics

That's neat. I've never seen a drill with that setting before. All of my hammer drills have two settings. Spin the chuck with no hammer and spin the chuck with hammer.

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That control exists on my drill (top control), but then there is another control (side lever) which turns the rotation on or off. Below is a snippet from the instruction manual showing how the 2 control levers work to give the various modes of operation.

Attachment 50049