We have noticed the hotend on early gMax printers can become lose. This is a result of the basswood spacers which connect the hotend to the extruder (for easy removal) become lose against the hotend.
We have just updated our extruder bracket to fix this problem (one reason we love 3d printing parts instead of injection molding). The new bracket puts pressure on the j-head hotend from the top which clamps down the basswood spacers. Any new printer kits will include a spacer to put between the j-head hotend and the extruder motor bracket to fix this problem.
A solution for any existing printer kits is to remove the hotend from the extruder:
and put in several washers (or lasercut wood spacers) between the j-head hotend and the extruder motor bracket.
Then simply reinsert the hotend into the extruder and put the screws back.
We have just updated our extruder bracket to fix this problem (one reason we love 3d printing parts instead of injection molding). The new bracket puts pressure on the j-head hotend from the top which clamps down the basswood spacers. Any new printer kits will include a spacer to put between the j-head hotend and the extruder motor bracket to fix this problem.
A solution for any existing printer kits is to remove the hotend from the extruder:
and put in several washers (or lasercut wood spacers) between the j-head hotend and the extruder motor bracket.
Then simply reinsert the hotend into the extruder and put the screws back.
