Wilson 2

[Geoff]

Glad you got it figured out! We have several Kossels and several Prusa's. Not really sure which one is easier to configure. This new Wilson 2 is really like a Prusa on Steroids! We plan on using it to test out new filaments, like Nylon, Wood and Metals. It has an all metal extruder so it can run much hotter.

I'm keen to see it in action!

I have this thing printing well now, but the scale is off lol.. first time ever in my printing history have I had a scale issue.

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?

[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.