diff --git a/dda.c b/dda.c
index fd4b806..93e56eb 100644
--- a/dda.c
+++ b/dda.c
@@ -392,7 +392,6 @@ void dda_create(DDA *dda, TARGET *target) {
 		else
 			dda->accel = 0;
 		#elif defined ACCELERATION_RAMPING
-			// yes, this assumes always the x axis as the critical one regarding acceleration. If we want to implement per-axis acceleration, things get tricky ...
       dda->c_min = move_duration / target->F;
       if (dda->c_min < c_limit) {
         dda->c_min = c_limit;
diff --git a/dda_lookahead.c b/dda_lookahead.c
index f8df93e..76fab02 100644
--- a/dda_lookahead.c
+++ b/dda_lookahead.c
@@ -216,6 +216,7 @@ void dda_join_moves(DDA *prev, DDA *current) {
     this_F = muldiv(current->fast_um, current->endpoint.F, current->distance);
     crossF = muldiv(current->fast_um, crossF, current->distance);
 
+    // TODO: calculate the steps from the fastest axis and not from X.
     prev_F_in_steps = ACCELERATE_RAMP_LEN(prev_F);
     this_F_in_steps = ACCELERATE_RAMP_LEN(this_F);
     crossF_in_steps = ACCELERATE_RAMP_LEN(crossF);