For anyone that's interested, I converted my TS55R to use the dustbag from the TSC55, Festool Part 500393 "Festool SB-TSC Chip Collection Bag For TSC55 and HKC55"
You also need Festool Part 10015824 Angled Piece to Connect Chip Collection Bag to TS55
Total cost of parts from FFX was ~£38 delivered (other vendors are available...)
It took about 5 mins to pop-off the blade cover, watching out for the tiny spring that appears to be part of the retractable splinter guard assembly, and reassemble. I now have the option to use my TS55 with extraction (preferable) or dustbag where necessary. I did have a bit of trouble with the hex screw nearest the extractor port - my keys didn't engage very well and I had to find another set that worked better. I've only used the dustbag once so far, and it was so windy the benefit of the dust bag wasn't that obvious!
Edited to add that my saw is the TS55R, purchased June '14
You also need Festool Part 10015824 Angled Piece to Connect Chip Collection Bag to TS55
Total cost of parts from FFX was ~£38 delivered (other vendors are available...)
It took about 5 mins to pop-off the blade cover, watching out for the tiny spring that appears to be part of the retractable splinter guard assembly, and reassemble. I now have the option to use my TS55 with extraction (preferable) or dustbag where necessary. I did have a bit of trouble with the hex screw nearest the extractor port - my keys didn't engage very well and I had to find another set that worked better. I've only used the dustbag once so far, and it was so windy the benefit of the dust bag wasn't that obvious!
Edited to add that my saw is the TS55R, purchased June '14