Non-standard mounting of miter saws on the PM-8000 Portacube

3 min. readlast update: 10.17.2023

The mounting hole patterns for some miter saws can limit the usefulness of the saw when installed on the PM-8000. This can either limit the range of miter that a saw can cut, or make the use of the tool dangerous.

Non-standard mounting method:

We recommend mounting a sheet of plywood to the PM-8000 using the supplied hardware, and mounting the miter saw to the plywood using the recommended method per the saw's manufacturer. This will result in a secure connection to the PM-8000 as well as to the miter saw. 

NOTE! Make sure to spread the tool mounts out as far apart as possible to provide greater mounting space for the miter saw. Photos below show an example.

A few saws that this is known to be needed are the following:

  • Festool Kapex has too small mounting holes to fit the bolts provided in the PM-8000 hardware kit. Using smaller nuts and bolts to fit the miter saw will result in an insecure connection to the PM-8000 and risk the saw falling off when rotated upside down.
  • Milwaukee 10" and 12" miter saws have mounting holes that are in the area that will be covered by the table to the saw. The mounting hardware needs to be flush with the surface using either countersunk screws or a hex bolt with the head set in the hexagon shaped hole in the mounting pad.

Example setups:

Notice that the mounting bolts are close to the front and back of the rotating tables - this leaves more mounting space for the miter saw on the plywood

Wood screws were used to attach the saw to the plywood using existing holes for this purpose. We do NOT recommend modifying the saw by drilling new holes

NOTE: The bolts securing the back half of the plywood may limit how far back the saw can be mounted. See photo below, the back bolts are just touching the back of the saw mounting pad. If this gets in the way, you can line up the rear bolts so that they secure both the plywood and the back of the saw with 1 set of bolts. 
If the bolt is too large to secure the saw, you can move the bolts towards the center, so they're on the inside edge of the back mounting pads, allowing you to push the saw further back
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The below example uses four #8 x 2" wood screws to mount the saw using existing mounting holes. Other saws may not have this, so make sure to use appropriate hardware. Ensure that the head of the screw is significantly larger than the hole so it can support weight.

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Below is another option which used hex bolts with washers and a nut to secure the miter saw to the plywood. This is more secure than using wood screws. We recommend using a hex bolt with a washer on top of the mounting pad, then a washer and nyloc nut (or lock washer with standard nut) below the plywood to secure it. These specific bolts were M8 hex bolts,

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The Milwaukee miter saws have a different mounting method - there is a hexagon shaped recess in the mounting pad, as well as a smaller countersunk hole for wood screws. Shown below is a hex bolt set into the mounting pad, then a washer and lock nut under the plywood to secure it.

Wood screws can also be used for this setup.

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