diff --git a/openscad.pro b/openscad.pro
index 6b32afc..b663a62 100644
--- a/openscad.pro
+++ b/openscad.pro
@@ -247,6 +247,8 @@ HEADERS += src/typedefs.h \
            src/ThrownTogetherRenderer.h \
            src/CGAL_OGL_Polyhedron.h \
            src/OGL_helper.h \
+           src/hidapi.h \
+           src/SpaceNav.h \
            src/QGLView.h \
            src/GLView.h \
            src/MainWindow.h \
@@ -404,6 +406,8 @@ SOURCES += src/version_check.cc \
            src/OpenCSGWarningDialog.cc \
            src/editor.cc \
            src/GLView.cc \
+           src/hid.c \
+           src/SpaceNav.cc \
            src/QGLView.cc \
            src/AutoUpdater.cc \
            \
diff --git a/src/MainWindow.h b/src/MainWindow.h
index 5e1e023..c748ab7 100644
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -257,6 +257,11 @@ public slots:
 	void showFontCacheDialog();
 	void hideFontCacheDialog();
 
+private slots:
+	void SpaceNav_translate( int x, int y, int z);
+	void SpaceNav_rotate( int x, int y, int z);
+	void SpaceNav_button( int bitmask);
+
 private:
 	static void report_func(const class AbstractNode*, void *vp, int mark);
 	static bool mdiMode;
diff --git a/src/mainwin.cc b/src/mainwin.cc
index 5735622..bf86f76 100644
--- a/src/mainwin.cc
+++ b/src/mainwin.cc
@@ -66,6 +66,7 @@
 #ifdef OPENSCAD_UPDATER
 #include "AutoUpdater.h"
 #endif
+#include "SpaceNav.h"
 
 #include <QMenu>
 #include <QTime>
@@ -582,6 +583,11 @@ MainWindow::MainWindow(const QString &filename)
 
 	setAcceptDrops(true);
 	clearCurrentOutput();
+	connect( &spacenav, SIGNAL( translate( int, int, int)),
+		this, SLOT( SpaceNav_translate( int, int, int)));
+	connect( &spacenav, SIGNAL( rotate( int, int, int)),
+		this, SLOT( SpaceNav_rotate( int, int, int)));
+	connect( &spacenav, SIGNAL( button( int)), this, SLOT( SpaceNav_button( int)));
 }
 
 void MainWindow::initActionIcon(QAction *action, const char *darkResource, const char *lightResource)
@@ -2746,3 +2752,85 @@ void MainWindow::hideFontCacheDialog()
 	assert(MainWindow::fontCacheDialog);
 	MainWindow::fontCacheDialog->reset();
 }
+
+
+
+void
+MainWindow::SpaceNav_translate( int x, int y, int z) {
+	if (x == 0 && y == 0 && z == 0) {
+		return;
+	}
+	std::cout << "SpaceNav_translate: x=" << x << " y=" << y << " z=" << z << std::endl;
+	qglview->cam.zoom( y * 0.1);
+	double mx = x * 0.0001 * qglview->cam.zoomValue();
+	double my = 0.0;
+	double mz = -z * 0.0001 * qglview->cam.zoomValue();
+	Matrix3d aax, aay, aaz, tm3;
+	aax = Eigen::AngleAxisd( -(qglview->cam.object_rot.x() / 180) * M_PI, Vector3d::UnitX());
+	aay = Eigen::AngleAxisd( -(qglview->cam.object_rot.y() / 180) * M_PI, Vector3d::UnitY());
+	aaz = Eigen::AngleAxisd( -(qglview->cam.object_rot.z() / 180) * M_PI, Vector3d::UnitZ());
+	tm3 = Matrix3d::Identity();
+	tm3 = aaz * (aay * (aax * tm3));
+	Matrix4d tm;
+	tm = Matrix4d::Identity();
+	for (int i = 0; i < 3; ++i) {
+		for (int j = 0; j < 3; ++j) {
+			tm( j, i) = tm3( j, i);
+		}
+	}
+	Matrix4d vec;
+	vec <<
+	  0,  0,  0,  mx,
+	  0,  0,  0,  my,
+	  0,  0,  0,  mz,
+	  0,  0,  0,  1
+	;
+	tm = tm * vec;
+	qglview->cam.object_trans.x() += tm( 0, 3);
+	qglview->cam.object_trans.y() += tm( 1, 3);
+	qglview->cam.object_trans.z() += tm( 2, 3);
+	qglview->updateGL();
+
+}
+
+
+static void
+normalizeAngle( GLdouble& angle) {
+	while (angle < 0) {
+		angle += 360;
+	}
+	while (angle > 360) {
+		angle -= 360;
+	}
+}
+
+
+void
+MainWindow::SpaceNav_rotate( int x, int y, int z) {
+	if (x == 0 && y == 0 && z == 0) {
+		return;
+	}
+	std::cout << "SpaceNav_rotate x=" << x << " y=" << y << " z=" << z << std::endl;
+	qglview->cam.object_rot.x() += x * 0.01;
+	qglview->cam.object_rot.y() += y * -0.01;
+	qglview->cam.object_rot.z() += z * -0.01;
+	normalizeAngle( qglview->cam.object_rot.x());
+	normalizeAngle( qglview->cam.object_rot.y());
+	normalizeAngle( qglview->cam.object_rot.z());
+	qglview->updateGL();
+}
+
+
+void
+MainWindow::SpaceNav_button( int bitmask) {
+	std::cout << "SpaceNav_button bitmask=" << bitmask << std::endl;
+	if ((bitmask & 1) != 0) {
+		viewCenter();
+	}
+	if ((bitmask & 2) != 0) {
+//		viewAll();
+		viewResetView();
+	}
+}
+
+
diff --git a/src/openscad.cc b/src/openscad.cc
index 80c5b9e..d589ded 100644
--- a/src/openscad.cc
+++ b/src/openscad.cc
@@ -42,6 +42,7 @@
 #include "stackcheck.h"
 #include "CocoaUtils.h"
 #include "FontCache.h"
+#include "SpaceNav.h"
 
 #include <string>
 #include <vector>
@@ -743,6 +744,7 @@ int gui(vector<string> &inputFiles, const fs::path &original_path, int argc, cha
 	}
 
 	app.connect(&app, SIGNAL(lastWindowClosed()), &app, SLOT(quit()));
+	spacenav();
 	int rc = app.exec();
 	QSet<MainWindow*> *windows = MainWindow::getWindows();
 	foreach (MainWindow *mainw, *windows) {