![]() At some point the band is stretched to a point that it is stiff enough to then translate the energy you further supply into lifting the kettle bell off the floor. As you pull the band, it becomes tighter but the weight remains on the floor, even as the band becomes more stretched. ![]() At that point, the lifter must then exert the force against the weight of the plates and bar to lift it up.Īnother analogy would be to imagine a kettle bell on the floor with a short resistance band looped through the handle. During a block pull, a lifter must first overcome the potential energy to bend the bar before the bar becomes stiff enough to not bend under the tension of the weight. In the block pull set-up, there is no such tension on the bar because the bar simply rests through the centers of the plates and is not being pulled by the weights. That flexibility represents potential energy and overcoming it goes into essentially stretching the bar to bend it. The slack (or flexibility) of the board has been reduced because of the weight. Naturally, the board will bend up at the middle. Imagine now two heavy stones sitting on either end of the boards. Think of a seesaw with a flexible board but instead of one fulcrum centered in the middle of the board there are two fulcrums close to either end of the board. This is because the bar rests on the racks (or pins as the case may be) and the racks act like fulcrums. In contrast, in a rack pull set-up the bar bends under the weight of the plates. In a block pull set-up there is no tension on the bar. Unlike how a bar rests in the rack pull set-up, a bar remains in a neutral position when the plates are on blocks. I will probably maintain my own repository in case this is useful to anyone else.The reason why block pulls are harder than rack pulls is because of the additional potential energy that must be overcome in taking the slack out of the bar during a block pull. I know that these changes are probably solving a problem that is too esoteric to be considered for the official Adafruit repository, but I thought I'd post it in case it's helpful. I also added a public uint8_t variable resets to keep track of the number of times the power has been cycled. resetVCC_Pin() only runs if a VCC pin is assigned by setPowerReset(). ![]() I placed it at the end of the readTemperature() and readHumidity() functions and it accepts the sensor reading result as an argument, cycling the power if it recieves a NAN. The Private function resetVCC_Pin() is what does the actual reset. Optional - don't include this argument, or set to 0, for infinite resets.
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