The first mixer I made had the axle welded directly to the frame, and that worked well. Later I switched to large "U" bolts around the axle and through the frame, which also works well. Emphasis on "large" and nice and tight. You might be able to find or fabricate a "spacer" between the frame and axle to help keep the axle from spinning, something like
Thursday, September 8, 2011
Re: [papercreters] Re: Mixer Design
at 12:36 PM