diff --git a/.scripts/foot_gen.py b/.scripts/foot_gen.py
index 179bfdb..bef59ec 100644
--- a/.scripts/foot_gen.py
+++ b/.scripts/foot_gen.py
@@ -162,6 +162,7 @@ for foot in saved:
 
 # Export the step file
 os.system("kicad-cli pcb export vrml --units 'tenths' -f --user-origin " + str(ToMM(brd_cent.x)) + "x" + str(ToMM(brd_cent.y)) + "mm -o /tmp/dummy.wrl " + sys.argv[1])
+os.system("kicad-cli pcb export step -f --subst-models --user-origin " + str(ToMM(brd_cent.x)) + "x" + str(ToMM(brd_cent.y)) + "mm -o /tmp/dummy.stp " + sys.argv[1])
 
 # Import the 3d model of the actual PCB
 dummy = FOOTPRINT(pcb)
@@ -179,7 +180,9 @@ pcb.Add(dummy)
 # Save and export step of board + mating connectors
 SaveBoard("test/test.kicad_pcb", pcb)
 final_model_path = sys.path[0] + "/../../libs/melon3d/" + foot_path + ".3dshapes/" + foot_name + ".wrl" 
+final_model_path_stp = sys.path[0] + "/../../libs/melon3d/" + foot_path + ".3dshapes/" + foot_name + ".stp" 
 os.system("kicad-cli pcb export vrml -f  --units 'mm' --user-origin " + str(ToMM(brd_cent.x)) + "x" + str(ToMM(brd_cent.y)) + "mm -o " + final_model_path + " test/test.kicad_pcb")
+os.system("kicad-cli pcb export step -f --subst-models --user-origin " + str(ToMM(brd_cent.x)) + "x" + str(ToMM(brd_cent.y)) + "mm -o " + final_model_path_stp + " test/test.kicad_pcb")
 
 # Generate footprint