combination machine dust extraction upgrade, port and internals

[Albert]

I am in the process of upgrading my combination machine's port and internal . At the moment they are all 100mm. I want to achieve 150mm but this maybe a bit involving... especially the dust collection at the bottom of the saw as it is a cast iron unit



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A bit dusty but you can see where the pvc joins with the cast iron exhaust. The cast iron molds into a conduit which it opens up and forms part of the dust collection. The smallest cross sectional area of this conduit is very small, it is about 100mm x 50mm, therefore I am not sure if it will make any differences at all if I increase ecerything else to 150mm. The maximum dust extraction is pretty much determined by this 100x50mm conduit. Anyone has done this before?

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The external dust port is easier to upgrade in comparison


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The dust extraction hood on the planer/thicknesser, not sure what can be done to increase it to 150mm? Has anyone done this before?

[BobL]

If it was me I would leave the current 100 mm ducting on that machines as it is as that will be very tricky to modify.

I would then add a 150 or another 100 mm duct somewhere on the side opposite to that big rectangular vent in the side of the machine - that will reduce the escape of the dust from inside the cabinet,

And then I would add a movable 100 mm duct to the top of the machine to use on the TS blade guard of other cutter guards.

In terms of air flow 3 x 100 mm ducts = 1 x 150 mm duct.