From 3b21c64c2e0d30c8725a4100475008f1c62743e7 Mon Sep 17 00:00:00 2001
From: bubnikv <bubnikv@gmail.com>
Date: Mon, 29 Jul 2019 16:19:32 +0200
Subject: [PATCH] Fix of "Unable to slice in command line mode: Mixing
 configurations for FFF and SLA technologies" #2426

---
 src/PrusaSlicer.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/PrusaSlicer.cpp b/src/PrusaSlicer.cpp
index 9983c691b5..b1ba30553e 100644
--- a/src/PrusaSlicer.cpp
+++ b/src/PrusaSlicer.cpp
@@ -94,7 +94,7 @@ int CLI::run(int argc, char **argv)
         PrinterTechnology other_printer_technology = get_printer_technology(config);
         if (printer_technology == ptUnknown) {
             printer_technology = other_printer_technology;
-        } else if (printer_technology != other_printer_technology) {
+        } else if (printer_technology != other_printer_technology && other_printer_technology != ptUnknown) {
             boost::nowide::cerr << "Mixing configurations for FFF and SLA technologies" << std::endl;
             return 1;
         }
@@ -114,7 +114,7 @@ int CLI::run(int argc, char **argv)
             PrinterTechnology other_printer_technology = get_printer_technology(m_print_config);
             if (printer_technology == ptUnknown) {
                 printer_technology = other_printer_technology;
-            } else if (printer_technology != other_printer_technology) {
+            } else if (printer_technology != other_printer_technology && other_printer_technology != ptUnknown) {
                 boost::nowide::cerr << "Mixing configurations for FFF and SLA technologies" << std::endl;
                 return 1;
             }