I posted this in the 'wheeling machine shape' thread but it's off topic there, so thought I'd try here. We're starting an English wheel build and plan to use 100 x 100 x 5mm box section, but have a question about the tee joints we'd have to use.
This is a sketch of the joint we'll make if we use 100 x 100 x 5mm cold formed box section, with corner radii (10mm outer diameter, 5mm inner, and the gap they'll cause) indicated. It'd be stick welded (apparently our MIG isn't powerful enough) and it'll have to fill the gap at the vertical join (bottom and top centre in the sketch) caused by the radius of the upright. Will that work, or would the heat of building up the weld lead to distortion - we need to keep the whole thing square. If so, or if there are other reasons not to do this, are we better using 90 x 90mm for the arms that will hold the wheel and anvils, and thus butt to the 100mm upright on all four faces?
Thanks for any thoughts.
This is a sketch of the joint we'll make if we use 100 x 100 x 5mm cold formed box section, with corner radii (10mm outer diameter, 5mm inner, and the gap they'll cause) indicated. It'd be stick welded (apparently our MIG isn't powerful enough) and it'll have to fill the gap at the vertical join (bottom and top centre in the sketch) caused by the radius of the upright. Will that work, or would the heat of building up the weld lead to distortion - we need to keep the whole thing square. If so, or if there are other reasons not to do this, are we better using 90 x 90mm for the arms that will hold the wheel and anvils, and thus butt to the 100mm upright on all four faces?
Thanks for any thoughts.