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Australian Woodsmith 1st January 2020

Top & Tail Bearings

I have a bench-mounted router which is used for template routing. I use two router bits, one with the bearing above the cutter and the other with the bearing below the cutter. I start the cut with one bit doing half the cut and then stop and change the bit (at the same time turning over the workpiece to change the direction of the grain) before completing the cut. This stops the problem of tear out as the bit exits the cut when using template bits but it takes time to change the bits and to adjust the height.  

The solution I have come up with is to remove the bearing and retainer from one bit and fit it to the base of the other. The bit featured below now has two bearings, one above the cutting edge and one below. I now start the cut with the bit going half way, stop, adjust the height and turn over the stock and complete the exercise. No more exit tear out and no need to change bits!   

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SAFETY IN THE WORKSHOP Safety devices, such as riving knives, guards on table saws and guards over router bits have been deliberately left out of the line drawings in Australian Woodsmith projects in order to make them easier to follow. It goes without saying that where safety devices have been supplied by the manufacturers you should use them. We encourage the use of push sticks as good work practice.
    Exercise vigilance and the greatest of care when using power tools, whether stationary or portable. Keep all your tools sharp and well maintained. Wear protective eyewear, a dust mask and a hearing protector when appropriate. By limiting distractions and developing safe work practices you will go a long way to avoiding workshop accidents. So, work safe fellow woodworkers.  -Editor
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