Posted by Michael Cox 1 on 27/02/2019 22:13:04:
My Balco printer, the same as the current offering from Aldi, has a very firm steel frame and is already equipped with a cooling fan on the extruder. I have had no problems with it straight out of the box except for the levelling screws on the print table being a bit loose. This problem was easily solved by printing some washers that fit under the springs of the levelling screws.
Mike
There can be and is a degree of flex between the tower and the base which can easily be firmed up with the trusses, the screws attaching the frame to the base are not strong enough to stop movement away from true vertical and the cooling fan is for the part not the extruder itself.