CTC Bizer spool holder.

After having my printer for nearly 11 months I thought that it was time to look into improving the filament spool holder. The holder on the back works okay but my printer came without the feeding tubes, which meant the filament rubbed against the wooden frame which caused the black paint to come off. I then made my tubes which solved the problem but these tubes were more of a temporary solution. However this was back in December. Several months later the tubes have now become very worn and are c