dewalt dw660 ir led holder or end-cover for mpcnc

If you remove the lower part of the dewalt dw660, the circle piece fits on the end to keep dust out. If you want to have a place to mount infrared LED emitter and detector to measure rotation speed from reflection off of collet nut, there is a file included for that too. You would use one or the other not both.
I used a glue gun to hold the led's in place. I used a piece of aluminum duct tape on one face of the collet nut. I painted the other sides of the collet nut black with acrylic paint.