diff --git a/Makefile b/Makefile
index 8ad3a05..c7d1c69 100644
--- a/Makefile
+++ b/Makefile
@@ -12,19 +12,19 @@ CC = gcc
 
 OPT = -Wall -g -O3 -DDEBUG_LEVEL=0 -DMUST_ABORT=0
 
-libbubulles.a:	bubulles.o importobj.o
+libbubulles.a:	bubulles.o edges.o
 	ar r $@ $?
 
 bubulles.o:	bubulles.c bubulles.h Makefile
 	$(CC) $(OPT) -c $< 
 
-importobj.o:	importobj.c bubulles.h Makefile
+edges.o:	edges.c bubulles.h edges.h Makefile
 	$(CC) $(OPT) -c $< 
 
 # ------------------------------------------------
 # --- build some tests and tools
 
-tbb:		tbb.c bubulles.h bubulles.o Makefile
-	$(CC) $(OPT)  $< bubulles.o -o tbb
+tbb:		tbb.c bubulles.h libbubulles.a Makefile
+	$(CC) $(OPT)  $< libbubulles.a -o tbb
 
 #############################################
diff --git a/bubulles.c b/bubulles.c
index 586a3b8..d74f9c3 100644
--- a/bubulles.c
+++ b/bubulles.c
@@ -228,10 +228,8 @@ fprintf(stderr, "*** %s : array at %p, sz %d\n", __func__, ar, bbl->size);
 for (idx=0; idx<bbl->fidx; idx++) {
 	fprintf(fp, "%12.6f  %12.6f  %12.6f",
 			ar[idx].p.x, ar[idx].p.y, ar[idx].p.z);
-			
 	if (opts & 0x01)	fprintf(fp, "  %12.6f", ar[idx].d);
 	if (opts & 0x02)	fprintf(fp, "  %6d",    ar[idx].gray);
-
 	fputs("\n", fp);
 	}
 fflush(fp);
@@ -248,7 +246,6 @@ printf("xyzd   %11.6f  %11.6f  %11.6f  %11.6f\n",
 printf("diam   %11.6f         gray %5d\n", what->d, what->gray);
 printf("rgba   %11.6f  %11.6f  %11.6f  %11.6f\n",
 		what->col.r, what->col.g, what->col.b, what->col.a);
-		
 puts("----------------------------------------------------------");
 
 return 0;
diff --git a/bubulles.h b/bubulles.h
index 2c95cde..bd1de60 100644
--- a/bubulles.h
+++ b/bubulles.h
@@ -4,9 +4,9 @@
 
 /* --------------------------------------------------------------------- */
 
-#define LIBBB_VERSION		57
+#define LIBBB_VERSION		59
 
-#define SZ_BUBULLE_TEXT		51		/* arbitrary value */
+#define SZ_BUBULLE_TEXT		81		/* arbitrary value */
 
 /* a 3d space coordinate */
 typedef struct {
@@ -77,7 +77,7 @@ int fprint_bubulles(FILE *fp, char *title, BBList *bbl, int flags);
 int niceprint_bubulle(Bubulle *what, int unused);
 
 /* this is just a wtf function * see tbb.c */
-int bubulles_to_data(char *fname, char *title, BBList *bbl, int k);
+int bubulles_to_data(char *fname, char *title, BBList *bbl, int flags);
 
 /* --------------------------------------------------------------------- */
 /* sometime we want to look at the bounding box */
diff --git a/edges.c b/edges.c
new file mode 100644
index 0000000..a1171ac
--- /dev/null
+++ b/edges.c
@@ -0,0 +1,11 @@
+/*
+ *		edges.c
+ */
+
+#include   <stdio.h>
+
+#include   "edges.h"
+
+/* --------------------------------------------------------------------- */
+
+
diff --git a/edges.h b/edges.h
new file mode 100644
index 0000000..d6ca827
--- /dev/null
+++ b/edges.h
@@ -0,0 +1,5 @@
+/*
+ *		edges.h
+ */
+
+/* --------------------------------------------------------------------- */
diff --git a/tools/Makefile b/tools/Makefile
index 9c87420..8f90070 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -3,5 +3,8 @@ BBFUNCS = ../libbubulles.a
 
 OPT = -Wall -g -DDEBUG_LEVEL=1 -DMUST_ABORT
 
-read_obj:	read_obj.c Makefile $(BBFUNCS)
-	gcc $(OPT)  $< $(BBFUNCS) -o $@
+read_obj:	read_obj.c Makefile importobj.o $(BBFUNCS)
+	gcc $(OPT)  $<  importobj.o $(BBFUNCS) -o $@
+
+importobj.o:	importobj.c ../bubulles.h Makefile
+	$(CC) $(OPT) -c $< 
diff --git a/importobj.c b/tools/importobj.c
similarity index 76%
rename from importobj.c
rename to tools/importobj.c
index 159d9df..e8bd662 100644
--- a/importobj.c
+++ b/tools/importobj.c
@@ -8,7 +8,8 @@
 #include  <stdlib.h>
 #include  <string.h>
 
-#include  "bubulles.h"
+#include  "../bubulles.h"
+#include  "../edges.h"
 
 extern int		verbosity;
 
@@ -22,18 +23,19 @@ typedef struct	{
 	int		id;
 	} Tokens;
 
-enum token_id { T_comment=1, T_vertice };
+enum token_id { T_comment=1, T_vertice, T_group, T_face };
 
 Tokens TokenList[] = {
 	{  "#",		T_comment	},
 	{  "v",		T_vertice	},
+	{  "g",		T_group		},	// to be verified
+	{  "f",		T_face		},
 	{  NULL,	0		}
 	};
 
 static int type_of_the_line(char *text)
 {
 Tokens		*token;
-int		id;
 
 #if DEBUG_LEVEL
 fprintf(stderr, "%s is searching '%s'\n", __func__, text);
@@ -74,12 +76,12 @@ int try_to_read_an_OBJ_file(char *infname, char *outfname, int notused)
 FILE		*fpin;
 char		line[LINE_SZ+1], *cptr;
 float		x, y, z;
-int		foo, nbre, tokenid;
+int		foo, nbre, tokenid, fa, fb, ix;
 BBList          *bublist;
 Bubulle         bubulle;
 
 #if DEBUG_LEVEL
-fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, fname, notused);
+fprintf(stderr, ">>> %s ( '%s' %d )\n", __func__, infname, notused);
 #endif
 
 if (NULL==(fpin=fopen(infname, "r"))) {
@@ -87,7 +89,7 @@ if (NULL==(fpin=fopen(infname, "r"))) {
 	exit(1);
 	}
 
-bublist = alloc_bubulles(infname, 1000, 0);
+bublist = alloc_bubulles(infname, 150000, 0);
 if (NULL==bublist) {
         fprintf(stderr, "err in %s, aborting...\n", __func__);
         abort();
@@ -110,7 +112,8 @@ while(NULL!=(cptr=fgets(line, LINE_SZ, fpin))) {
 		continue;
 		}
 	tokenid = type_of_the_line(cptr);
-	if (verbosity) fprintf(stderr, "token '%s' --> %d\n", cptr, tokenid);
+	if (verbosity > 1)
+		fprintf(stderr, "token '%s' --> %d\n", cptr, tokenid);
 
 	memset(&bubulle, 0, sizeof(Bubulle));
 
@@ -118,6 +121,7 @@ while(NULL!=(cptr=fgets(line, LINE_SZ, fpin))) {
 		case T_comment:
 			/* do nothing */
 			break;
+
 		case T_vertice:
 			x = y = z = 0.0;
 			foo = parse_vertice(cptr, &x, &y, &z);
@@ -126,6 +130,24 @@ while(NULL!=(cptr=fgets(line, LINE_SZ, fpin))) {
 			bubulle.p.z = z;
 			if (verbosity > 1) niceprint_bubulle(&bubulle, 0);
 			break;
+
+		case T_group:
+			cptr = strtok(NULL, " ");
+			fprintf(stderr, "Group:  %s\n", cptr);
+			break;
+
+		case T_face:
+			fprintf(stderr, "Face A:  %s\n", cptr);
+			for (ix=0; ix<3; ix++) {
+			   cptr = strtok(NULL, " ");
+			   fprintf(stderr, "Piste %d:  %s\n", ix, cptr);
+			   if (2==sscanf(cptr, "%d/%d", &fa, &fb))
+			     fprintf(stderr, "  %d   %d %d\n", foo, fa, fb);
+			   else
+			      return -3;
+			   }
+			break;
+			 
 		default:
 			// fprintf(stderr, "token %d ?\n", tokenid);
 			continue;		/* wtf ? */
@@ -133,7 +155,8 @@ while(NULL!=(cptr=fgets(line, LINE_SZ, fpin))) {
 
 	foo = push_bubulle(bublist, &bubulle);
 	if (foo) {
-		fprintf(stderr, "%s: err %d on push\n", __func__, foo);
+		fprintf(stderr, "*** %s: error %d on push\n", __func__, foo);
+		exit(1);
 		break;
 		}
 	nbre++;
diff --git a/tools/read_obj.c b/tools/read_obj.c
index d78bbc9..a5f9253 100644
--- a/tools/read_obj.c
+++ b/tools/read_obj.c
@@ -18,10 +18,10 @@ if (2 != argc) {
 	exit(0);
 	}
 
-verbosity = 2;
+verbosity = 1;
 
 foo = try_to_read_an_OBJ_file(argv[1], "bulles.xyz", 0);
-fprintf(stderr, "try to read -> %d\n", foo);
+fprintf(stderr, "try to read '%s' --> %d\n", argv[1], foo);
 
 return 0;
 }