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  9 out of 9 members found this review helpful

  Anemoulis

  2022-05-26

  Verified purchase

  
  Before I bought it, I asked a question, my question was eventually answered, but unfortunately no one responded to the fact that the star does not do the job it was designed for. Unfortunately, it is worthless.

  I will try to explain how it is supposed to work and what it offers, as well as what the problem is, and I hope to help you understand.

  ------- Construction:
  This star has a bearing in the center, and it screws UNDER the blade, which must be 305mm in diameter to fit (you will understand why below). When you press the throttle, the blade spins normally, and the star underneath can touch the ground... because, as I said, it has a bearing in the center, so the shaft that spins the blade turns the bearing, and thus the star is free to either spin or not spin; if you have it in the air, for example, at some point it spins too, if you place it on the ground, it obviously stops spinning, and only its center bearing spins.

  ------- What it is useful for:
  Its use is essentially to allow you to place the head of the lawnmower down and cut without worrying that the blade will touch the ground since below the blade is the star, which will touch if necessary. You move it back and forth like a vacuum cleaner, and the blade is above the ground without being able to touch it, while the star touches the ground and keeps the rest of the system at the correct height. At the same time, since the blade is 305mm, it does not extend beyond the star, so if you touch a wall, then the star will touch, and the blade, which is infinitesimally further in, will not touch. So it protects both vertically and horizontally, and also in relation to the trimmers, it does not damage trees by hitting them because it will not even touch the trunk of the tree (the star will protect it).

  Theoretically, this should be the best for a lawnmower, and I have even seen videos on YouTube with such stars and was amazed! Nice in theory, but in "practice," the metal gets stuck!

  ------- The problem:
  The problem is that there is a tiny gap between the bearing and the rest of the star system, and although as a bearing it brings some resistance, it has some resistance regardless. So when it is NOT 100% fitted to the star, this resistance is variable... and sometimes it rolls more easily while other times it holds a bit more resistance, all of this is felt in your hand as a vibration... it kicks. When you give it gas, the whole system starts vibrating, resulting in not only the lawnmower slipping from your hands but also many times the blade touching the star at the edge and sparking because the whole system vibrates and rotates vertically to the movement of the blade left-right, and thus with the elasticity of the blade and the small gap of the bearing, it touches a bit at the edge (the star and the blade do not have such a large distance between them)!

  I have seen professional stars do incredible work, and they even have an arm to hold the star so it doesn't spin even when in the air, which, however, costs as much as a cheap lawnmower. This one is a cheap imitation, and obviously, the one and only point that should have been perfect (the bearing) fails, and thus the whole concept is completely useless.

  ~~
  I will make a patent to see if I can fix the problem, and if I succeed, I will provide an update. Essentially, the core that has the screw to be screwed in with the blade is "inserted" into the bearing (it is not one with the bearing) but it is not a perfect fit 100%. I will try to glue the internal screw to the inside of the bearing and I hope to fix the problem.

  ...if only we had something to say!

  The image below shows how it is placed so you can understand the use for which it is intended.

  Translated from Greek · Show original

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