Quote
hercek
#define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET) #define DELTA_DIAGONAL_ROD (2*DELTA_RADIUS)
[forums.reprap.org]
Not sure where that code comes from. I haven't seen it in any of the firmware I use.
Johann's original Rostock used 250mm and 124mm for rod length and radius. and I worked out that a 2:1 ratio was optimal to give you the largest build area for a given rod length.
But there is no requirement that the rods are exactly 2x the delta radius. That is purely a design choice.
Regards,
Mike P
