Need some advice from the group. Recently bought a Monarch Model K 13x30 lathe. It came with a Jacobs nose spindle chuck and all the flex collets. My problem is the spindle chuck is a D1-5 camlock system and the lathe is a D1-6 system. The PO made some soft jaws for the three jaw chuck, I'm not comfortable with 1/2 inch of clamping area on the Jacobs and the fact that .0035 is the best I get on runout. I'm relatively new to metalworking. I've found D1-6 adapter plates on Traver's and MSC, can they be machined to receive the 7degree 7 min taper for mounting and with the rotary table I'd bore holes for mounting bolt using the existing cam lock stud holes. Or would I be better off mounting the chuck on a plate I make with a 2 1/2" dia x 3" stud on the back that I can mount in the four jaw and dial into near 0 runout. With the 1/8 inch locking range and the ability to hold short pieces I thought this would be a great asset for model engine building. Now I clamp my four jaw off my Atlas into the three jaw on the Monarch for small work. Thanks Roger