This is not a fantastic tutorial, in fact, the end result is wrong. First, the supplied schematic itself is under constrained. Several key fillets are undefined. Secondly, the taper area from 100 to 76 is also undefined, but can be incurred. The tutorial gets the incurred taper wrong. The proof is in the measurement of 32 width of the inner vertical support. The taper should not finish at the center of the hole bracket, but in fact finish at the inner side of the vertical bracket with the 32 width indicator. Firstly, you should make sure any reference material you use to base a tutorial on is well dimensioned, and secondly, make sure you accurately recreate it. If you want to double check my analysis, start a sketch on the surface where the 32 mm dimension is indicated, bring in the external geometry needed and check the measurement. It will be slightly larger than 32. If you take an approach at this based on stock that this will be constructed by, it's much simpler to break apart into its pieces. This object would be composed 0f 20mm stock or (44x100x300 solid block with a 260x24mm rabbit cutout of it) for the base, 12mm stock for the supports (either 2 or 3 depending on the tube modeling), and 52mm tube stock with a 40mm bore.
Fantastic tutorial
This is not a fantastic tutorial, in fact, the end result is wrong. First, the supplied schematic itself is under constrained. Several key fillets are undefined. Secondly, the taper area from 100 to 76 is also undefined, but can be incurred. The tutorial gets the incurred taper wrong. The proof is in the measurement of 32 width of the inner vertical support. The taper should not finish at the center of the hole bracket, but in fact finish at the inner side of the vertical bracket with the 32 width indicator. Firstly, you should make sure any reference material you use to base a tutorial on is well dimensioned, and secondly, make sure you accurately recreate it.
If you want to double check my analysis, start a sketch on the surface where the 32 mm dimension is indicated, bring in the external geometry needed and check the measurement. It will be slightly larger than 32.
If you take an approach at this based on stock that this will be constructed by, it's much simpler to break apart into its pieces. This object would be composed 0f 20mm stock or (44x100x300 solid block with a 260x24mm rabbit cutout of it) for the base, 12mm stock for the supports (either 2 or 3 depending on the tube modeling), and 52mm tube stock with a 40mm bore.