Version 5.22

- Changed the minimum welding requirements, so you have to weld up the blocks to the outmost interior plate layer to make them function. The last steel plate layer is still optional.

Version 5.21

- Fixed mount points on vents.

Version 5.20

- Fixed construction models for the vent piptes.
- Fixed boundaries of medium vent pipes.

Version 5.11

- Fixed icon mismatch between sloped blocks.
- Fixed mount points on heavy sloped blocks.

Reupload of previous version for testing.

Version 5.10

- Replaced icons.
- Corrected textures.

Version 5.02

- Fixed mount points on sloped cubic pipes.

Version 5.01

- Fixed the mirroring of curved blocks.
- Fixed some texture issues on frames.