Quick simple fix or improve the purge wiper blade on the A1 series printer by adding a spacer to rise the wiper closer to the nozzle, approximate about 1.25mm.
Please check to make sure the wiper has clearance with the nozzle toolhead after the installation!
This is a very nice idea.
The hight is slightly too short, so the problem I see is that the screw is too short for it to match the small gap to the nozzle.
So the wiper does not clean the nozzle every single time.