Revised 10/07/19: Based on positive user feedback from DirtMerchant I have removed the "Work in progress" flag.
Revised 03/28/18: Based on a 3d model I found of the 611, I revised this to have a 69mm inner diameter. I also built a model of the center assembly of the MPCNC and this mount seems to work with the 611 without issue. I will leave it flagged as a work in progress until someone prints it and passes on the results, but I believe it will work without issue.
Great original design by markdoll01, just needed the center to be bigger to fit the Dewalt 611. No change from the original other than to hog out the center to 68.75mm and re-fillet the inside edge of the open clasp area.
It is possible that the head of the Dewalt is too big for this to work with the MPCNC 525 without further modification of this mount. I do not have a 611 on hand to print and try it, but I will update if I hear from anyone who does.