08-27-2016, 07:14 AM
Hello
Its easy.... Figure your lead out (Google "thread lead" for definition) now mark up your piece with Dykem / layout fluid or sharpie, scratch mark your stop and start, now cut a piece of paper 1/8'' wide x 6'' long, place the start of the paper on the stop mark on your piece, now wrap the paper around and connect it to the start, with the wrapped paper still on scratch the edge of the paper and follow the helix.
Now you have a center line, all you have to do now is figure out the slot width divide that in half lay it out on the center line and mark the edges out, now its all marked out take a small thin grind / cutter disk on a dremell type tool and cut it out.
Anthony.
Its easy.... Figure your lead out (Google "thread lead" for definition) now mark up your piece with Dykem / layout fluid or sharpie, scratch mark your stop and start, now cut a piece of paper 1/8'' wide x 6'' long, place the start of the paper on the stop mark on your piece, now wrap the paper around and connect it to the start, with the wrapped paper still on scratch the edge of the paper and follow the helix.
Now you have a center line, all you have to do now is figure out the slot width divide that in half lay it out on the center line and mark the edges out, now its all marked out take a small thin grind / cutter disk on a dremell type tool and cut it out.
Anthony.
ieezitin, proud to be a member of MetalworkingFun Forum since Jan 2013.