Calibrating the FlexΒΆ
Because of the gear ratio inside the Flex, the steps per millimeter are a lot more than your usual number.
Note
Start with 2700 steps/mm with a 1.8deg stepper and 1/16 microstepping
The Flex has a nice flat surface you can use to set the ruler on, when measuring the filament, simply place it on top of the half circle on top of the Hobbit. Use a light coloured filament, place it in the breech, heat up the hot end and start the process.
- Measure 100 mm on the filament, by holding the filament against the ruler while the ruler stands on the breech block ears.
- Mark the distance with a permanent marker.
- Extrude 50 mm using the firmware controls.
- Measure the remaining length to the mark made.
- Calculate the new number of steps/mm using the following formula:
Note
New steps = current steps * 50/actual mm extruded (50 being the 50 mm of filament you wanted to extrude.)
- enter the new value in your firmware settings.
- Do the whole sequence again, to confirm that the steps per millimeter are now set correctly.
- if not, recalculate and re-confirm.
Done! All the tuning and calibrations are done. You are now ready to start using the Flex, so go to the Using the Flex page or click Next.