Another bug fix to pressure advance

2 files changed, 4 insertions, 4 deletions

diff --git a/src/Movement/DriveMovement.cpp b/src/Movement/DriveMovement.cpp
index f0dfef69..9a95862a 100644
--- a/src/Movement/DriveMovement.cpp
+++ b/src/Movement/DriveMovement.cpp
@@ -412,7 +412,7 @@ bool DriveMovement::PrepareExtruder(const DDA& dda, const PrepParams& params) no
 				if (timeToReverse < params.unshaped.decelClocks)
 				{
 					// There is a reversal, although it could be tiny
-					const float distanceToReverse = fsquare(initialDecelSpeed) * decelSeg->GetC() * 0.25;	// because (v^2-u^2) = 2as, so if v=0 then s=-u^2/2a = u^2/2d = 0.25*u^2*c
+					const float distanceToReverse = fsquare(initialDecelSpeed) * decelSeg->GetC() * (-0.25);	// because (v^2-u^2) = 2as, so if v=0 then s=-u^2/2a = u^2/2d = -0.25*u^2*c
 					forwardDistance += params.unshaped.decelStartDistance + distanceToReverse;
 					reverseDistance = 0.5 * params.unshaped.deceleration * fsquare(params.unshaped.decelClocks - timeToReverse);	// because s = 0.5*a*t^2
 				}
diff --git a/src/Movement/MoveSegment.cpp b/src/Movement/MoveSegment.cpp
index f2f8c244..666af6b8 100644
--- a/src/Movement/MoveSegment.cpp
+++ b/src/Movement/MoveSegment.cpp
@@ -50,14 +50,14 @@ void MoveSegment::AddToTail(MoveSegment *tail) noexcept
 
 void MoveSegment::DebugPrint(char ch) const noexcept
 {
-	debugPrintf("%c d=%.3e t=%" PRIu32 " ", ch, (double)segmentLength, (uint32_t)segTime);
+	debugPrintf("%c d=%.4e t=%.1f ", ch, (double)segmentLength, (double)segTime);
 	if (IsLinear())
 	{
-		debugPrintf("c=%.3e\n", (double)c);
+		debugPrintf("c=%.4e\n", (double)c);
 	}
 	else
 	{
-		debugPrintf("b=%.3e c=%.3e\n", (double)b, (double)c);
+		debugPrintf("b=%.4e c=%.4e\n", (double)b, (double)c);
 	}
 }