I like the wiper model by jocin_.

Since i dont have the any wiper for the A1 (mini) but some model silicon i thought “why not … why should i not mold my own wiper”.

But silicone is known for not sticking to anything and fumbling the silicone part into this fragile tray can be … lets say troublesome.

So the best bet is to mold it in place.

I modified the tray so the silicone can't be pulled out without extensive force. The room for the silicone is als a bit bigger.

Supports are needed at exactly the same places as jocin_ described it.

The mold is designed to produce 4 trays at once. The top layers on the mold (both parts) should be ironed.

After printing the Trays you need eventualy file a little bit, since the thin wall at the 5,5mm hole may colapse a bit.

And so the tray will not fit into the mold.

Note*: use some sort of mold release agent on the mold, or you may have a hard time to remove everything.

But do not use this on the trays.