Hi everyone,
After building a crane style bot (with V-slot), now building a Core-XY with linear rods. Build size 100*100*100mm.
I am facing some issues when homing and while printing.
In the image 'Corexy.jpg
', the left side motor is connected to X motor connection in RAMPS, right side motor is connected to Y motor in RAMPS, left side endstop in X-carriage is connected to X-min endstop in RAMPS, backside endstop is connected to Y-min endstop in RAMPS.
When the X-carriage is at the front side (away from the motors), the X homing is done properly. The hot end moves to the left side and hits the endstop smoothly. (Refer '
HomeXatback.3gp')
Also Y homing is also done properly with the same condition (X-carriage is at the front side, away from the motors). X-carriage moves to the back side and hits the back endstop smoothly.
Now the problem arises when the X-carriage is at the back side (near by the XY motors). When I click 'X home', it is moving towards the X endstop, but not triggering it, stoping before the endstop.
And the same, when the X-carriage is at the back side, and when I click 'Y home, the hot end is moving strangely and not at all homing Y. (Refer
Xhomingnotdoneproperly.3gp',
Yhomeactingstrange.3gp').
I tried with motor wires swapping, X Y motors swapping, endstop swapping and tried with true and false values in Marlin also. (
Configuration.h file attached.)
Also, after homing, if I move, Y axis by 90mm, X carriage is also moving along with Y. (Refer '
Xmoving90mm.3gp', '
Ymoving90mm1.3gp')
Same, when I move X axis by some value, Y is also moving with X carriage. Is it the normal property of Core-XY.
I am using Arduino+RAMPS with Marlin RC7. Using original E3d Lite6, MK8 extruder. I have attached the images, videos and config file also.
Also, I just printed a 20mm cube without filament. Instead of square movements, the printer is moving in parallelogram motion. (Looking like 15 degree inclined).
And how to get perfect tension with CoreXY. When I tighten the belt in the hot end mount, the mount gets inclined (X-carriage not perpendicular to Y-axis). But when I did the normal tight, X and Y are perpendicular.
Help me to proceed further.
Thanks & Regards
Selva