I discovered this thread a couple of days ago and have been enjoying it, so thanks to all the contributors 
One of the things I learned is that the dog holes are 20mm. Always assumed they would be 3/4"
. For everyone asking about clamping and accessories, this is good news, as there is a wide range of items designed to work with the 20mm holes in Festool's Multi-Function Table (MFT) and its offshoots. Search for "MFT accessories" and you'll find lots. Here are some examples.
These are the Bessey GTR16S6H track/table clamps. I bought them to use on the track for a Makita plunge saw. As shown here on my Workmate Plus Medallion (79-042 Type 2), they also slip into a 20mm hole in a ~3/4" thick top to use as a hold-down. The L-bend in the clamp won't fit through smaller hole or thicker tops (unless the hole is bigger). Lots of similar clamps from other manufacturers. The clamp on the left clears the support and can be rotated but will hit the mounting bracket, limiting somewhat where it can be positioned. Beside the chunk of 2x4 is a small Veritas surface dog from Lee Valley. I did need to slightly enlarge the holes in the work surface with sandpaper wrapped around a dowel before the dog would insert and remove easily.


I don't have a full-size MFT, but here is a SYS-MFT. You could say it is the Festool (and Tanos, which makes the Systainers) version of the Workmate Shopbox. Clockwise from left side: black large and small Veritas surface dogs, UJK Super Parf dog with collar installed, UJK 50mm guide dogs (right one inserted in hole), UJL Parf anchor dogs with 8mm thread, and at the front UJK 12mm guide dogs (left one in hole). That's all I have on hand to show, but there are lots of other items, from bases for toggle clamps to bushings for work lamps.

Should your Workmate (or multiples thereof) fail to satisfy your need for perforated work surfaces, there are some great plans for DIY MFT-like tables. Look for Timothy's MF-TC and Dan Pattison's MPT for a couple of fine examples. (No connection to either though I think they are both great designs and plans.)
One more idea - if you have bar clamps with a bar <3/4" wide and a removable jaw, take the jaw off, put the clamp through a hole so the movable jaw will be on top, and reattach. Dan shows this on his web site.
Have fun!
One of the things I learned is that the dog holes are 20mm. Always assumed they would be 3/4"
These are the Bessey GTR16S6H track/table clamps. I bought them to use on the track for a Makita plunge saw. As shown here on my Workmate Plus Medallion (79-042 Type 2), they also slip into a 20mm hole in a ~3/4" thick top to use as a hold-down. The L-bend in the clamp won't fit through smaller hole or thicker tops (unless the hole is bigger). Lots of similar clamps from other manufacturers. The clamp on the left clears the support and can be rotated but will hit the mounting bracket, limiting somewhat where it can be positioned. Beside the chunk of 2x4 is a small Veritas surface dog from Lee Valley. I did need to slightly enlarge the holes in the work surface with sandpaper wrapped around a dowel before the dog would insert and remove easily.


I don't have a full-size MFT, but here is a SYS-MFT. You could say it is the Festool (and Tanos, which makes the Systainers) version of the Workmate Shopbox. Clockwise from left side: black large and small Veritas surface dogs, UJK Super Parf dog with collar installed, UJK 50mm guide dogs (right one inserted in hole), UJL Parf anchor dogs with 8mm thread, and at the front UJK 12mm guide dogs (left one in hole). That's all I have on hand to show, but there are lots of other items, from bases for toggle clamps to bushings for work lamps.

Should your Workmate (or multiples thereof) fail to satisfy your need for perforated work surfaces, there are some great plans for DIY MFT-like tables. Look for Timothy's MF-TC and Dan Pattison's MPT for a couple of fine examples. (No connection to either though I think they are both great designs and plans.)
One more idea - if you have bar clamps with a bar <3/4" wide and a removable jaw, take the jaw off, put the clamp through a hole so the movable jaw will be on top, and reattach. Dan shows this on his web site.
Have fun!












