Y Axis that supposed to move the bed Theta angel is not moving

[shadinew]

Hi I have the below issue , which i am not sure if it is the reason why Y axis is not moving in my machine

echo: Free Memory: 4324 PlannerBufferBytes: 1232
echo:Hardcoded Default Settings Loaded
echo:SD init fail

I have defined the R-360 however Y axis is not moving not homing too its like powerless even though i saw the coordinates are fine on the LCD but it seems in some way the coordinates are not reaching the stepper motor i changed the driver I changed the wires and flipping them with x axis which moving and not working too.

[shadinew]

I use motherboard 35 and below is the code

// Enable R_360 Polar cordinates
#define R_360
//#define R_360_MENU

//disc outer size
#define R_360_OUTER_RADIUS 100

// Make delta curves from many straight lines (linear interpolation).
// This is a trade-off between visible corners (not enough segments)
// and processor overload (too many expensive atan2 calls).
#define R_360_DELTA_SEGMENTS_PER_SECOND 250 //normal 250

//The original formula to calculate this number:
//(large gear teeth count / small gear teeth count) / ( 360 / motor step degree * motor step ratio {1/x} ) / 2
//(36 / 10) (360 / 1.8 *16 ) /2 = 5760
//steps for full rotation -5760 to 5760 //TODO Use the full rotation here not half
//This value overide the Y settings in DEFAULT_AXIS_STEPS_PER_UNIT
#define R_360_STEPS_PER_ROTATION 5760

//Speed up in the middle. It helps if there is too much fillamet get deposited to the center of the printing bed
//Will make a quick move when larger than alpha condition(tn) and smaller than x_diff condition(mm)
//#define R_360_QUICK_CROSSING_ON
//#define R_360_ALPHA_CONDITION 0.03
//#define R_360_X_DIFF_CONDITION 2

//Choose only one
//Method 1 uses angles for detecting shorter paths. Arduino MEGA can't handle more than 5 digit accuracy with floats. Accuracy problems can couse skipping and twisted prints.(prepare_move)
//#define R_360_SHORTER_WAY_DETECTION_METHOD_1
//Method 2 Works with steps and integers. (plan_buffer_line)
//#define R_360_SHORTER_WAY_DETECTION_METHOD_2

I would like to mention that i set temps to 0 as i do not have extruder yet so i can test the movement could it be a reason ?

[kory75]

Hi, To be honest R-360 code is very-very old. Y axis homing was disabled as Y axis were the printing plate which is a disk / circle has no zero point to home to. It did not matter where we start to print from anyway. You need to select one of the methods to calculate coordinates: #define R_360_SHORTER_WAY_DETECTION_METHOD_1 or #define R_360_SHORTER_WAY_DETECTION_METHOD_2 I recommend the 2nd one (it had less accuracy issues) Kind regards,

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-- Kornel Farkas

On 14 Aug 2020, 19:45 +0100, shadinew ***@***.***>, wrote: Hi I have the below issue , which i am not sure if it is the reason why Y axis is not moving in my machine echo: Free Memory: 4324 PlannerBufferBytes: 1232 echo:Hardcoded Default Settings Loaded echo:SD init fail I have defined the R-360 however Y axis is not moving not homing too its like powerless even though i saw the coordinates are fine on the LCD but it seems in some way the coordinates are not reaching the stepper motor i changed the driver I changed the wires and flipping them with x axis which moving and not working too. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[shadinew]

I appreciate your reply , however it seems not working too, would it be possible to recommend any other firmware the can run a polar 3d printer with the following design ?

[shadinew]

I used Arduino Mega and Ramps 1.4

[airfield20]

@shadinew https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwarePolarPrinter

[shadinew]

@airfield20 I have used reprapfirmware with M669 K7 however I am still facing the same issue , is there anyway you can help me in the configurations ?