Blackboard chars

Instructions:
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1. BLKBB_board_8x8_20cm_x_20cm_01_1of3.stl
2. BLKBB_supp_glue_7x7_01_2of3.stl
3. BLKBB_chars_7x7_01_3of3.stl


for creating this blackboard we need a lot of
printing job for each pieces...
As we can watch from the included images, we
have to build a suit for theese boards that
need to be linked togheter.
So let's print the 1. BLKBB_board_8x8_20cm_x_20cm_01_1of3.stl
in blackcolour.. almost 20x times, it has no longer
time to print 'couse it's very thin.