1) 1 3/4" table thickness (surface to end of threaded boss)
2) 23" width between mounting holes for sleeves
3) 5" between mounting holes on each sleeve
So this is - shockingly
- not a drop-in fit to the BT3100. But it may be pretty easy to adapt. Your suggestion inspired me to check for an owners manual online. Viola! Link

This snip from the PDF (Link) shows that the rod ends are bolted to the outfeed support (instead of welded), so the width should be easy to customize with one drilled hole. I'm also thinking about bolting the sleeves to the side of the BT's case (instead of under the table). I think this would simplify mounting and be very sturdy.
This might actually work!





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