With some technical filaments i had sometimes the problem that the printer will fail at the Cleaning Nozzle stage due to the oozing or harder materials. Solutions like drying filament did not work out. 

As a lot of other printers using a wiper to get rid of all nozzle debris i created a wiper which attaches to the bed holder. Its using the brushes from the BL A1 as they are super cheap to get from aliexpress/amazon.

Warning: You will loose 1mm of Y Travel at the X location of the brush due to the part cooling fan.

As this was designed very quick and dirty there is for sure a way to get full travel. Possible Remixes? :-)

Hardware needed.

• M3x8 Screw
• A1 silicone Wiper
• Printed part

Install:

• Put the silicone on the printed part
• Screw the wiper on the bed holder (see picture). You just screw it into the plastic. .step file attached if you want to use a heat insert
• Change Slicer Start  G-code

from:

G29 P9 X208 Y-2.5 W32 H4

to:

;G29 P9 X208 Y-2.5 W32 H4 ; original nozzle cleaning method
G0 X40  Y-14 Z2.5 F10000;
G0 X76 Y-18 Z2.5 F10000;
G0 X40  Y-14 Z2.5 F10000;
G0 X76 Y-18 Z2.5 F10000;
G0 X40  Y-14 Z2.5 F10000;

Please double check the postions with manually moving the toolhead via the LCD