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Hangprinter: Allow Hangprinter to be configured with 6 anchors
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jtimon committed Dec 21, 2022
1 parent a29afa3 commit bac7a90
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Showing 2 changed files with 14 additions and 11 deletions.
21 changes: 12 additions & 9 deletions src/Movement/Kinematics/HangprinterKinematics.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -20,10 +20,11 @@
constexpr size_t DefaultNumAnchors = 4;
// Default anchor coordinates
// These are only placeholders. Each machine must have these values calibrated in order to work correctly.
constexpr float DefaultAnchors[5][3] = {{ 0.0, -2000.0, -100.0},
constexpr float DefaultAnchors[6][3] = {{ 0.0, -2000.0, -100.0},
{ 2000.0, 1000.0, -100.0},
{-2000.0, 1000.0, -100.0},
{ 0.0, 0.0, 3000.0},
{ 0.0, 0.0, 0.0},
{ 0.0, 0.0, 0.0}};
constexpr float DefaultPrintRadius = 1500.0;

Expand Down Expand Up @@ -83,13 +84,13 @@ void HangprinterKinematics::Init() noexcept
* In practice you might want to compensate a bit more or a bit less */
constexpr float DefaultSpoolBuildupFactor = 0.007;
/* Measure and set spool radii with M669 to achieve better accuracy */
constexpr float DefaultSpoolRadii[HANGPRINTER_MAX_AXES] = { 75.0, 75.0, 75.0, 75.0, 75.0}; // HP4 default
constexpr float DefaultSpoolRadii[HANGPRINTER_MAX_AXES] = { 75.0, 75.0, 75.0, 75.0, 75.0, 75.0}; // HP4 default
/* If axis runs lines back through pulley system, set mechanical advantage accordingly with M669 */
constexpr uint32_t DefaultMechanicalAdvantage[HANGPRINTER_MAX_AXES] = { 2, 2, 2, 2, 4}; // HP4 default
constexpr uint32_t DefaultLinesPerSpool[HANGPRINTER_MAX_AXES] = { 1, 1, 1, 1, 1}; // HP4 default
constexpr uint32_t DefaultMotorGearTeeth[HANGPRINTER_MAX_AXES] = { 20, 20, 20, 20, 20}; // HP4 default
constexpr uint32_t DefaultSpoolGearTeeth[HANGPRINTER_MAX_AXES] = { 255, 255, 255, 255, 255}; // HP4 default
constexpr uint32_t DefaultFullStepsPerMotorRev[HANGPRINTER_MAX_AXES] = { 25, 25, 25, 25, 25};
constexpr uint32_t DefaultMechanicalAdvantage[HANGPRINTER_MAX_AXES] = { 2, 2, 2, 2, 2, 4}; // HP4 default
constexpr uint32_t DefaultLinesPerSpool[HANGPRINTER_MAX_AXES] = { 1, 1, 1, 1, 1, 1}; // HP4 default
constexpr uint32_t DefaultMotorGearTeeth[HANGPRINTER_MAX_AXES] = { 20, 20, 20, 20, 20, 20}; // HP4 default
constexpr uint32_t DefaultSpoolGearTeeth[HANGPRINTER_MAX_AXES] = { 255, 255, 255, 255, 255, 255}; // HP4 default
constexpr uint32_t DefaultFullStepsPerMotorRev[HANGPRINTER_MAX_AXES] = { 25, 25, 25, 25, 25, 25};
ARRAY_INIT(anchors, DefaultAnchors);
numAnchors = DefaultNumAnchors;
printRadius = DefaultPrintRadius;
Expand Down Expand Up @@ -167,6 +168,7 @@ bool HangprinterKinematics::Configure(unsigned int mCode, GCodeBuffer& gb, const
return true;
}
}

if (gb.Seen('P'))
{
printRadius = gb.GetFValue();
Expand Down Expand Up @@ -490,6 +492,7 @@ bool HangprinterKinematics::WriteCalibrationParameters(FileStore *f) const noexc
{
scratchString.catf("%c%.3f:%.3f:%.3f ", ANCHOR_CHARS[i], (double)anchors[i][X_AXIS], (double)anchors[i][Y_AXIS], (double)anchors[i][Z_AXIS]);
}

if (!f->Write(scratchString.c_str()))
{
return false;
Expand Down Expand Up @@ -671,8 +674,8 @@ void HangprinterKinematics::PrintParameters(const StringRef& reply) const noexce
HangprinterKinematics::ODriveAnswer HangprinterKinematics::GetODrive3EncoderEstimate(DriverId const driver, bool const makeReference, const StringRef& reply, bool const subtractReference) THROWS(GCodeException)
{
const uint8_t cmd = CANSimple::MSG_GET_ENCODER_ESTIMATES;
static CanAddress seenDrives[HANGPRINTER_MAX_AXES] = { 0, 0, 0, 0, 0 };
static float referencePositions[HANGPRINTER_MAX_AXES] = { 0.0, 0.0, 0.0, 0.0, 0.0 };
static CanAddress seenDrives[HANGPRINTER_MAX_AXES] = { 0, 0, 0, 0, 0, 0 };
static float referencePositions[HANGPRINTER_MAX_AXES] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
static size_t numSeenDrives = 0;
size_t thisDriveIdx = 0;

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4 changes: 2 additions & 2 deletions src/Movement/Kinematics/HangprinterKinematics.h
Original file line number Diff line number Diff line change
Expand Up @@ -52,8 +52,8 @@ class HangprinterKinematics : public RoundBedKinematics

private:
// Basic facts about movement system
const char* ANCHOR_CHARS = "ABCDE";
static constexpr size_t HANGPRINTER_MAX_AXES = 5;
const char* ANCHOR_CHARS = "ABCDEF";
static constexpr size_t HANGPRINTER_MAX_AXES = 6;
static constexpr size_t A_AXIS = 0;
static constexpr size_t B_AXIS = 1;
static constexpr size_t C_AXIS = 2;
Expand Down

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