Here is an example of a firmwre used on standard rostock using Arduino Mega2560 with RAMPS1.3; based on the pictures you posted in the other thread, it is about the same as what you have (maybe except the electronics): [github.com]
This machine had incorrect tower positions so they are defined explicitely in Configuration.h (instead fo being defined based on delta radius as most people have it). Regardless all the dimensions should be within few mm of the standard rostock.
First make sure your endstops work well. Use M119. Make sure the endstops are not triggered when they are not pressed and that they are triggered when they are pressed. Verify that you have stepper drivers set to about 1.1A.
Try whether it helped.
If not, clear and reset EEPROM (M502 and M500). Set all the speeds and accelerations very low. Take belts down from the stepper pulleys. Position carriages so that no endstop is triggered. Try to home (G28). All tower motors should start to rotate smoothly in one (forward) direction. Then (after they should have travelled 3*zHeight, they should stopp. Then each tower motor (one after another) should move forward for another 1.5*zHeight, then backward about 5 mm, then forward about 10 mm.
If this does not work smoothly you have problem with stepepr drivers or steppers or electronics. It if works smoothly then maybe some mechanical problem? Do carriages move easily?
Btw, belts must be quite tight for proper printing. You will not be able to tighten the top bracket on tower X enough so that it does not bent the top/bottom plate plywood and and slip on the smooth rod. You have two options. Glue the smooth rods to the brackets or do something like on the attached picture.
This machine had incorrect tower positions so they are defined explicitely in Configuration.h (instead fo being defined based on delta radius as most people have it). Regardless all the dimensions should be within few mm of the standard rostock.
First make sure your endstops work well. Use M119. Make sure the endstops are not triggered when they are not pressed and that they are triggered when they are pressed. Verify that you have stepper drivers set to about 1.1A.
Try whether it helped.
If not, clear and reset EEPROM (M502 and M500). Set all the speeds and accelerations very low. Take belts down from the stepper pulleys. Position carriages so that no endstop is triggered. Try to home (G28). All tower motors should start to rotate smoothly in one (forward) direction. Then (after they should have travelled 3*zHeight, they should stopp. Then each tower motor (one after another) should move forward for another 1.5*zHeight, then backward about 5 mm, then forward about 10 mm.
If this does not work smoothly you have problem with stepepr drivers or steppers or electronics. It if works smoothly then maybe some mechanical problem? Do carriages move easily?
Btw, belts must be quite tight for proper printing. You will not be able to tighten the top bracket on tower X enough so that it does not bent the top/bottom plate plywood and and slip on the smooth rod. You have two options. Glue the smooth rods to the brackets or do something like on the attached picture.