Patch become untrimmed collided with crystallon

Grasshopper
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1

hello everyone. im beginner of grasshopper. but i tried many ways before finally posting it here.

my problem is when i use lattice generator Crystallon my patch become untrimmed and made voxcel not correct.

something i tried

  1. trim un and untrimmed patch
  2. polyline → point-> surface from point
  3. surface ->decontruct->reconsturct

please help me so i can get patch surface meet patch surface with trimmed one not untrimmed

untrimmed lattice.3dm (66.3 KB)
untrimmed lattice.gh (32.1 KB)
Capture

2

i hope any one can help me. been a week stuck on this