Like John, I found my Cast Iron Model 10 Extensions Table on ebay.
An option for a Lower Saw Blade Guard and to provide dust collection is using a Mark 5 Lower Saw Blade Guard part number 505628. It has a 2-1/2" dust port. You can see it, in position, on my Model 10ER below. When using it put the Blade on the Arbor as shown in the picture. If the spacer is put on first the Blade will be against the outer side of the guard.
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- 505628 on 10ER.jpg (103.15 KiB) Viewed 1565 times
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That Lower Guard uses the Upper Saw Blade Guard part number 505627 as seen in the picture below.
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- 505627 Upper and 505628 Lower Saw Blade Guards r.jpg (85.54 KiB) Viewed 1565 times
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I am pretty sure there is not enough clearance to use the Upper Guard with the Kreg Fence. Below is the Upper and Lower Saw Blade Guard set mounted on my Model 10ER. Yes, the saw blade is mounted backwards but you can see the Shopsmith name on it that way.
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- 505627-505628r.jpg (61.58 KiB) Viewed 1565 times
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I use that Saw Blade Guard set on my Model 10's as opposed to the OEM Upper Guard and the rare Lower Guard which has a square dust chute. The early OEM Upper Saw Blade Guard is shown on my Model 10E below.
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- 1077 Reassemblied.jpg (120.8 KiB) Viewed 1565 times
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Model 10 Lower Saw Blade Guard.
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- 162-1X - 12 370 R r.jpg (189.5 KiB) Viewed 1565 times