0.8% is right for injection moulding ABS, according to another site I just looked at.]]>

Quote

**Dust**

... you do know that ABS shrinks approx 8%

... you do know that ABS shrinks approx 8%

Are you sure? Isn't it rather 0.8%?]]>

I'm using eSun PLA+ but I don't know if I need to allow for shrinkage with this material (I must admit that's not a factor I'd considered...)

UPDATE: Just did a quick Google on PLA shrinkage - apparently it's 2.0 to 2.5%, so that is starting to match my results... maybe in the future I will just have to add a 'shrinkage factor' when printing larger items.]]>

#define DELTA_DIAGONAL_ROD 271.50

#define DELTA_HEIGHT 302.85

#define DELTA_RADIUS 133.22

and what material, you do know that ABS shrinks approx 8%]]>

// variables to calculate steps #define XYZ_FULL_STEPS_PER_ROTATION 200 // These are the setting for the stock Stepper Motors, pulleys and Belts on the AnyCubic Kossel #define XYZ_MICROSTEPS 16 #define XYZ_BELT_PITCH 2 #define XYZ_PULLEY_TEETH 20 // delta speeds must be the same on xyz #define DEFAULT_XYZ_STEPS_PER_UNIT ((XYZ_FULL_STEPS_PER_ROTATION) * (XYZ_MICROSTEPS) / double(XYZ_BELT_PITCH) / double(XYZ_PULLEY_TEETH)) #define DEFAULT_AXIS_STEPS_PER_UNIT { DEFAULT_XYZ_STEPS_PER_UNIT, DEFAULT_XYZ_STEPS_PER_UNIT, DEFAULT_XYZ_STEPS_PER_UNIT, 98 } // default steps per unit for Kossel (GT2, 20 tooth)Unfortunately my parts are coming out slightly smaller than intended. especially in X and Y (probably Z as well, as it's a delta) - to get the exact size I have increase the scale in the slicer by 1.012.

My question is - what is the correct way to get this enlargement factor into configuration.h?

Or do I have another problem that I've missed?

Thanks,

David]]>