Blade balancer
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Precision tool for balancing the lawn mower blade
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Updated at source:
Model information
- Source
- Printables
- Category
- Outdoor & Garden
- License
- Creative Commons — Attribution — Noncommercial
Update 19 dec. 2025: I added a new version for the screw with increased tolerance of the thread, so that it can be screwed in more easily.
This is a vise mounted device for balancing lawn mower blades.
Thanks to the conical base of the fixing screw, blades with holes of different diameters can be mounted, at the same time ensuring that they are perfectly centered on the device.
There are 4 pieces that need to be printed:
In addition to these, two 608zz bearings are needed, with the covers removed and cleaned of grease to slide more easily.
Using the helper tool, one bearing is inserted all the way into each piece, then the two pieces are pushed into each other.
For better control use a vise to push the bearings, then the two pieces together.
Make sure to leave a small gap between the two pieces.
Finally, mount the blade in the device using the clamping screw and start balancing the blade.
