Simple steps creating a perfect notch and getting most out of your tube notcher.
Many a notcher manufacturer will demonstrate how a notch is made using their machine but that is the easy part of notching. It's the right placement that's critical and makes the difference between a good joint and one that requires either a lot of gap welding or in worse case, starting over again.
Making a wrong notch is costly in both time and money. Using a common holesaw type notcher such as the NotchMaster by JD2, we'll outline the following procedures to help simplify and hopefully make for a better and closer fitting notch for many a fabricator. These procedures work - regardless of the angle and regardless whether the joining tubes are parallel, divergent or skewed.
A basic notch starts with laying up the tube where you want the joint. Temporarily secure it so the tube can be easily marked so it can be correctly placed into the notcher. Position yourself to view both tubes at the intersection from a right angle perspective so you can accurately mark both the centerline of the tube (to be notched) and the intersecting point(s). The more accurate the marks - the better the resulting notch will fit. Always mark the point of intersection on the obtuse (or greater) angle side as shown in the picture.
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