Speeds changes after firmware modification
HI. I have repetier 0.92 since a while. No problems at all. Today O changed my Z threaded rods to lead screws. So I changed my Z steps in configuration.h. I uploaded the firmware useing the arduino software, I did a M500 command follewed by a M501 command. it went ok. No other changes in the file were made, just the Z steps. My past and actual Z related values are: Z max feed rate 1, homeing Z speed is 2, Z accel is 100, Z jerk is 0.3
The problem is that now the Z speed seems to be stuck at 2 whatever moement I try to do. Useing repetier host if I move the Z axis it moves really slow, I asume it is moveing at a speed of 2. Homeing also is slow, at a speed of 2. I have trid to change the max feed rate from the repetier host eprom tool, I tried with a value of max z feed rate of 4 and z homeing speed of 4. Then a M500 command and a M501 command (in that order) and still the speed of Z axis is stuck in 2.
What is hapenning here?
The problem is that now the Z speed seems to be stuck at 2 whatever moement I try to do. Useing repetier host if I move the Z axis it moves really slow, I asume it is moveing at a speed of 2. Homeing also is slow, at a speed of 2. I have trid to change the max feed rate from the repetier host eprom tool, I tried with a value of max z feed rate of 4 and z homeing speed of 4. Then a M500 command and a M501 command (in that order) and still the speed of Z axis is stuck in 2.
What is hapenning here?
Comments
1- I already was doing the changes through repetier host. But it didnt worked. I tried a value of 5 for max z feed rate (that was the value most people said it should be the max, but I guess that value is for threaded rods and not for lead screws? because they definitly moves faster?
2- with your info I changed the z aceleration to 300 (your 800 scared me jajaja I never saw that values before, but this is the first time I use a lead screw) And there was an instant change, speed was now being acepted (the value was 5). So then I changed also the max feed rate from 4 to 20 and now it moves fast as I want.
I guess the problem was the acel and speeds in relation with the steps? The steps for this lead screws are 800. Is a 8 mm lead screw, dont know what a start is, but useing the calculator from prusa didnt help me since it seems this lead screw is not a standar size. So I found the steps doing maths.
Only problem now: the speed still is super slow using the LCD controller....