Fabricating Pipe

The plan is to use the same pipe as Keith has been making for a couple of years. It will be a dual wall pipe with inside diameter of 46mm and outer pipe of 52mm. The 3D printed cones are sized for 46mm diameter inner pipe


A damaged pipe I had in the shop was cut open to use the stainless steel for the inner pipe.


The size of the metal for the inner pipe is marked and cut. A 10mm overlap is planned for spot welding


Since I now had 3 test printed pipe cones I used them for sizing collars during spot wielding to hold the proper diameter.


A 1.5" diameter table leg from Lowe's is used for a work mandrel and clamped to the work table. The pipe and collars are slid over the mandrel. The battery powered foot pedal controlled spot welder from Amazon is on the table charged and ready.


First spot welds to tack the end in place


Spot welding complete and collars removed.


Test fit works good