Yes, it is possible - You need the DeWalt DWS5031 Track Saw Router Attachment accessory. It allows use of DW 618, 621 & 625 routers to be used on a DeWalt track but I found it could be used with Festool track off the back edge. (See photos using my DeWalt 618) There is a little slop in the fit of the attachment channel to the track guide which I corrected with the addition of two pieces of UHMW tape on the inside of the 5031 channel, one at each end.
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