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I just completed the wiring of the axis into the control unit.
When I turn on the control unit I see a BLUE light, and 3 GREEN led on. I can move all the axis with some effort (with hand) but when I make the Machine Setup the Axis does not respond.
To be more specific, they looks like to receive the command but seems that they (the motor/axis) are sort of blocked.
The Z-Axis is the one that seems to be more efficient though it not go upside down correctly. At some point (like in the middle of the ACME thread) it also make a āstrangeā rumor and try go on (back and forth) with a lot of effort.
The other Axis also seems to receive the command, in fact if I press right on the X-Axis I can see it try to move into the correct direction, and that is for the Y-Axis too. But they donāt move correctly, seems sort of āseized upā/blockedā¦
What problem could be? Iām first thinking about the terminal block wiring on each axis but I have checked them 2 or 3 times during the assembling and they looks ok (I will check them again tomorrow), OR/AND the V-Wheels setup.
Whit a short in the wiring do you mean that maybe thereās one or more wiring that are touching each other while they donāt have to? Maybe in the terminal block or somewhere else?
If any of the above turn faulty, what is the next move? Just to know.
P.s. Maybe it can help but I still have to solder the limit switch (they arrive next week) and set the potentiometer of the stepper. In fact I wanted to make this setup the last if everything was moving correctly, butā¦
The potentiometer is what determines how much power the stepper is getting. If set too low, the stepper will not get enough power and act like it is stuck.
It is possible itās a power problem but that is unlikely. If the voltage setting is too low or high you will notice it latter when tuning the machine after you are done with setup and everything is moving correctly. Just check to see if the voltage pots are set mid way between low and high for now.
If I had to rank the probabilities of what is causing your problem:
Vwheels too tight 45%
Electrical short or improper connection 40%
Other mechanical issue (belts or improper assembly) 10%
Power supply 5%
That is progress! So now the motors will move the spindle around the X and Y axis?
Your next challenge is to find the sweet spot where the eccentric nuts are just tight enough to remove any play in the carriage, but not so tight that they stop the carriage from moving. I found that you want to tighten the eccentric nut until the vwheel become tight enough that it offers resistance when you try to turn it with your thumb.
When you have the X and Y axis dialed in, you can start with the Z axis which offers a few different challenges.
Then we can look at setting the voltage levels to the motors.
I have completely loosened all the V-Wheels on every axis (except the Z) and made that test. I also tried to āengraveā something with the spindle off and looks like the machine respond perfectly (even the Z) and complete the stage.
Of course with the V-Wheels ALL loosened I donāt know how much precise the machine is and if it work as it should be, but for now I know that my problem was the V-Wheels so I need to tune them perfectly.
What I have to do with the Z? I pretty much understood how to set the pot, but not the code part.
