Oh!....then I can t imagine the spool getting loose...
There are still three players in the mechanism.
- The fishing line could be too thight.
- The bearing on the top is sometimes blocking.
- The smooth rods are not perfectly parallel. This will stop or make it hard for the carriage to move to the top causing the motor to skip and loose steps. This will also explain why the problem happens as it moves higher during the print.
- The smooth rod or the bearing could be dammaged
What ever it is, it needs to happen only one time during the print...even for a fraction of seconds...the print is lost.
PS: your smooth rods looks like they have deep-seated rust or is it something else ?
Hope this helps.
There are still three players in the mechanism.
- The fishing line could be too thight.
- The bearing on the top is sometimes blocking.
- The smooth rods are not perfectly parallel. This will stop or make it hard for the carriage to move to the top causing the motor to skip and loose steps. This will also explain why the problem happens as it moves higher during the print.
- The smooth rod or the bearing could be dammaged
What ever it is, it needs to happen only one time during the print...even for a fraction of seconds...the print is lost.
PS: your smooth rods looks like they have deep-seated rust or is it something else ?
Hope this helps.