Hello all, I have recently been attempting to refresh my memory in regards to method of joints and have been making some reasonable progress, however I have ran into a stumbling block that has left me quite puzzled. I have been using the Skyciv truss calculator to verify my work and for the 1st analysis shown below I am fine and have no problems working out all the forces. However, in the 2nd analysis when I add further members, I cannot understand how the force values in each member are the values stated. Supports are at A & B, with an external force applied to D at 45 degrees. Could someone possibly shed some light on how this works please?