SDM processing v1 (part 2)

Roughly 24 hours after pouring soft urethane (Vytaflex 20):

After a lot of rubbing:

Chiseling it out:

Final parts (the Vytaflex 20 is extremely soft!):

I think I dinged some parts when chiseling them out of the block. Next, time I will machine them out of the mold, rather than chiseling it (especially when glass fiber is embedded).

Here is the flexibility of the medium-thick wrist: