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Step 7Opening for the blade
You need more table in front of the blade than behind the blade. Cut an opening for the blade to come up through the table, but leave enough table behind the blade for clamping the rip fence and for a saw base.
Notice that the opening has a bevel on the left side. That is to accommodate the blade's position when the saw is set to rip a 45 degree bevel. Keep the blade opening as small as possible so scrap pieces do not fall down into it.
This design sacrifices 3/4 inch of cutting depth due to the thickness of the plywood table. Most of the time you will be cutting materials no thicker than 3/4 inch, so less than maximum cutting depth is not a problem. When I had to cut a 2 x 4 (1 5/8 x 3 5/8 inches), I simply turned it over after the first cut and made a second cut. It would be possible to mount the saw below a piece of steel plate. The details on that would require quite a few more frames in this Instructable and will not be covered here.
Notice that the opening has a bevel on the left side. That is to accommodate the blade's position when the saw is set to rip a 45 degree bevel. Keep the blade opening as small as possible so scrap pieces do not fall down into it.
This design sacrifices 3/4 inch of cutting depth due to the thickness of the plywood table. Most of the time you will be cutting materials no thicker than 3/4 inch, so less than maximum cutting depth is not a problem. When I had to cut a 2 x 4 (1 5/8 x 3 5/8 inches), I simply turned it over after the first cut and made a second cut. It would be possible to mount the saw below a piece of steel plate. The details on that would require quite a few more frames in this Instructable and will not be covered here.
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