This is a PVC t-piece and with these slides I will show you guys how a mold with an undercut works. 
Step 1
The 3 sliders are moving to each other and the mold closes.
Step 2
The plactic liquid is being poured into the mold.
Step 3
The mold opens and the PVC part is manufactured.
Step 4
The 3 sliders are moving away from each other.
Step 5
The ejectors are pushing out the PVC part and the whole cycle starts again.
A view of the whole assembly 
PVC mold t-piece
Published:

PVC mold t-piece

This is a PVC t-piece and with these slides I will show you guys how a mold with an undercut works.

Published: