Wilson 2

[Roxy]

Printed a 40mm cube, came out at 31mm all sides (printed flawlessly. dead straight..) just a tad small...

Is this a marlin thing? I've checked belts and everything- the prints look very very good, it's purely a scale issue which I can get around by scaling up sure, but it's alot of second guessing.

Roxy.. you're the Marlin expert, any ideas?

No... This isn't a Marlin thing. Some how, some way, you have the wrong number of stepper pulses per unit of travel defined.

You get to control exactly how many stepper motor clicks constitutes 1mm of travel. You would just scale that number up by 40/31 (x1.29). Play with these numbers to get your Cube at 40mm.

#define DEFAULT_AXIS_STEPS_PER_UNIT {80, 80, 80, 93} //These numbers are for my machine. Scale your numbers on this line to get to 40mm.

It might be good to turn off your EEPROM settings until you have this dialed in. You don't want any bad numbers coming out of the EEPROM and being used.