I’ve search for and answer to this question, but cannot find anything specific.
I understand why we can use a sled for smaller carvings, but I am not clear on the set up procedure to start carving.
I built a sled similar to what has been posted on this site 2 ½ sides 14 ¼ width and 3 ft length. I marked a cross on the sled for center, and then marked ½” marks out to help line up the part. The part I am now puzzled with is when the carving bit is install and the machine sets it parameters for height, how does it find the surface of the material and not the surface of the sled? This may be a simple thing but I would hate to mess up and break my only carving bit.
Thanks in advance for any help.