I have finally started to weld up a hollowing rig system. Today I welded up a "D-Arm" from 3/4" stainless steel shaft. I also welded up a back support rest....which brings me to my first question. I'm building a rig like this https://www.lylejamieson.com/tools/tool_howto.asp . It calls for a backrest of anywhere from 30-38" across. One place one his website he says 30-32" and another he says 38"...My question is....do I really need it that wide? In the case of 38" he states that it should have 10" in front of lathe and 28" in the rear.
I know some of you have made your back rests so that you can slide them forward and back and I may make mine that way too...just looking at my options. I'll get some photos of it all in the next couple of days.
I also will then be trying to figure out how to make the cutting tips. My boring bars will be 3/4" bar as well but I need to know how to attach the cutting tools to the tip of the bars.