March 24, 2019 at 2:09 pm #94349
I recently changed my z-stepper motor because I messed up the wires on my old stepper motors. I some how managed to rip them by the stepper motor and was impossible to fix.
The problem I am having is for every 10mm its moving about 2mm.
I purchased 17HS19-2004S1 stepper motor from amazon.
The last stepper motor worked perfectly fine that I had. I even reflasehed the board. I put the motor on the x axis for drivers and still wasn’t moving the correct amount. I have all the settings all the same as provided I don’t know what to do.
Speces for 17HS19-2004S1
* Manufacturer Part Number: 17HS19-2004S1
* Motor Type: Bipolar Stepper
* Step Angle: 1.8 deg.
* Holding Torque: 59Ncm(83.6oz.in)
* Rated Current/phase: 2.0A
* Phase Resistance: 1.4ohms
* Inductance: 3.0mH+/-20%(1KHz)
* Frame Size: 42 x 42mm
* Body Length: 48mm
* Shaft Diameter: 5mm
* Shaft Length: 24mm
* D-cut Length: 15mm
* Number of Leads: 4
* Lead Length: 1m with connector
* Weight: 390g
Black(A+), Green(A-), Red(B+), Blue(B-)
Make sure the motor connect to a constant current or chopper drive controller before you test motor.
Connecting the motor directly to a power supply will destroy the motorMarch 24, 2019 at 2:12 pm #94350
A 5x difference is a really weird number, that is not a typical issue. It sounds fine and moves smoothly, just not enough?March 24, 2019 at 2:17 pm #94351
Correct my driver is set right about .7 volts. And its depth is off when I manually move and also when I run a program.
I noticed the guy on this forum link was seeming to have the same issue but some how his just randomly resolved itself.March 24, 2019 at 2:24 pm #94352
Did you correct or change the Z steps when you reflashed it? This would explain a 4X difference by 5X is not typical, are you guessing at that difference or can you measure it?March 24, 2019 at 2:37 pm #94358
I did not hange anything do I need to change something when I flash itMarch 24, 2019 at 2:44 pm #94361
I did not hange anything do I need to change something when I flash it
I have no idea what hardware or firmware you are using.
From that video I have no idea what amount you told it to move.March 24, 2019 at 2:47 pm #94363
I have ramps 1.4 flashed for dual endstops Latest version.
I moved 10 mm the max z axis reptier host allows without manual command. Didn’t have video showing the software because video was too long otherwisse and wouldn’t upload. So I move 10mm and it only oved not quite even 2mmMarch 24, 2019 at 2:55 pm #94365
Check the z steps, the new firmware (from github) is set for a leadscrew, if you do not have a leadscrew you need to change it. Drivers, step rate also a factor. I will check back in a few hours after I prep shipping.March 24, 2019 at 3:09 pm #94366
Thats got to be it I believe I am using a 5/16 rod yet. Is there a place that shows me eveything I need to change in the firmware. Or do you think it’d be best to just change it to the leadscrew?
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