Quantcast
Channel: Reprap Forum - Stepper Motors, Servo Motors, DC Motors
Viewing all 2228 articles
Browse latest View live
↧

Re: Dual Z nema 17's overheating

February 3, 2019, 3:58 am
$
0
0
Reducing the current was my first thought too and I have dialled it back a bit on both drivers but it still seems the same. I didn't want to go too far down that route in case I went too far on one side and it started losing steps, they were out of sync and skipping steps when I first got it & I'm sure it caused some minor psychological damage trying to figure out what was happening.

I'm not sure if this board (MKS Base V1.4) can be put into a sleep mode for drivers but I'll look into it. The firmware is a cut down tailored piece of work (quite well done though) , everything seems to be dumped into the configuration.h and configuration_adv.h. It's a slick setup but not so user friendly in some respects.

I'll dig my way through it Tomorrow and see what I can find.

Thanks for the reply @VDX
↧
Search

Re: Dual Z nema 17's overheating

February 3, 2019, 5:26 am
$
0
0
That board should be able to run smoothieware. All config in one text file. Why would you mess around with Marlin?
↧
↧

Re: (Another) TMC2130 Short To Ground Topic

February 3, 2019, 11:55 am
$
0
0
Same problem here.

Did you finally figure it out?
↧

Re: Dual Z nema 17's overheating

February 3, 2019, 12:55 pm
$
0
0
Quote
the_digital_dentist
That board should be able to run smoothieware. All config in one text file. Why would you mess around with Marlin?

DD, are you thinking of the MKS Sbase? That can run Smoothieware and RepRapFirmware. The MKS Base (without the S) is an 8-bit board.
↧

Re: Dual Z nema 17's overheating

February 3, 2019, 9:30 pm
$
0
0
Oh! You're right. Never mind...

It looks like that board has on-board drivers, but still uses pots to set the motor current. In that case, try turning the current down until the motors skip steps, then turn it back up a little until they stop skipping.
↧
↧

Z Stepper motor not moving on DuetWifi

February 5, 2019, 8:24 pm
$
0
0
I'm in the process of upgrading my Creality CR10 with Duet2Wifi. The Z axis stepper on the creality is slightly smaller 34mm.

I have been unable to get the the Z motor to respond at all. I've tried homing and sending G1 Z10 F1200 via pronterface. There's no vibrating or movement at all and the stepper turns freely as if it wasn't powered. When I replaced the stepper with a normal 40mm the stepper works and the Z commands work correctly.

I have tried swapping cables, upping the current in config.g, using the 2nd Z connection and bought a new 34mm stepper which also had the same problem.



Any idea what could be causing this?


Here are the specs on the stepper
------------------------------------------
1.5A 5oz.in (1HD00-22B)
Rated current: 1.5A
Holding torque: 5oz.in/20mN.m
Detent torque: 1.oz.in/12mN.m
Step angle: 1.°
Number of phase: 2
Insulation resistance: .2Ω
Rotor inertia: g.cm2


My current config.g
G90                                        ; Send absolute coordinates...
M83                                        ; ...but relative extruder moves

; Network
M550 P"tronxy"                             ; Set machine name
M552 S1                                    ; Enable network
				           ;*** Access point is configured manually via M587
M586 P0 S1                                 ; Enable HTTP
M586 P1 S0                                 ; Disable FTP
M586 P2 S0                                 ; Disable Telnet

; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S0 ; Drive 1 goes backwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S0 ; Drive 3 goes backwards
M350 X16 Y16 Z16 E16 I1                    ; Configure microstepping without interpolation
M92 X80 Y80 Z400 E99			   ; Set steps per mm
M566 X1200 Y1200 Z24 E300                  ; Set maximum instantaneous speed changes (mm/min)
M203 X30000 Y30000 Z600 E3000 		   ; Set maximum speeds (mm/min)
M201 X1000 Y1000 Z1000 E5000 		   ; Set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30 		   ; Set motor currents (mA) and motor idle factor in per cent
M84 S30                                    ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S0                           ; Set axis minima
M208 X300 Y300 Z400 S0                     ; Set axis maxima

; Endstops
 M574 X1 Y1 Z1 S1                          ; Set active high endstops

; Z-Probe
M558 P0 H5 F120 T6000                      ; Disable Z probe but set dive height, probe speed and travel speed
;M557 X40:280 Y40:280 S60                  ; Define mesh grid
M671 X50:50:250:250 Y60:260:260:60 S1.0 P0.5 ; Heaters
M305 P0 T100000 B3988 R4700                ; Set thermistor + ADC parameters for heater 0
M143 H0 S120                               ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B3988 R4700                ; Set thermistor + ADC parameters for heater 1
M143 H1 S280                               ; Set temperature limit for heater 1 to 280C

; Fans
M106 P0 S0.3 I0 F500 H-1                   ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T45                  ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S1 I0 F500 H1 T45                  ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1                              ; Define tool 0
G10 P0 X0 Y0 Z0                            ; Set tool 0 axis offsets
G10 P0 R0 S0                               ; Set initial tool 0 active and standby temperatures to 0C

; Custom settings are not configured

; Miscellaneous
T0                                         ; Select first tool
↧

Re: Z Stepper motor not moving on DuetWifi

February 5, 2019, 9:34 pm
$
0
0
the stepper probably has different wiring.

find the coils.. for how see --> [reprap.org]

don't take any notice of colors, there is no standard for stepper motors
↧

Re: Z Stepper motor not moving on DuetWifi

February 6, 2019, 11:31 am
$
0
0
Does the CR10 have just one Z stepper motor, or two?

Which firmware version are you running on the Duet? The latest stable firmware (2.02) will tell you if it detects an open circuit stepper motor phase.
↧
Search

Re: Z Stepper motor not moving on DuetWifi

February 6, 2019, 6:20 pm
$
0
0
Hi,

The CR10 has only 1 Z stepper.

I just upgraded the firmware to 2.02. When I try to home Z i get this notification...

× Warning: motor phase A may be disconnected reported by driver(s) 2
Warning: motor phase B may be disconnected reported by driver(s) 2
↧
↧

Re: Z Stepper motor not moving on DuetWifi

February 6, 2019, 8:43 pm
$
0
0
Ie both motor phases (coils) are incorrectly wired... as suggested 3 post ago...
↧

Re: Z Stepper motor not moving on DuetWifi

February 7, 2019, 12:28 am
$
0
0
As Dust says.

Please confirm that you have 2 jumpers in the unused Z motor connector.
↧

Re: Z Stepper motor not moving on DuetWifi

February 8, 2019, 8:17 pm
$
0
0
That indeed was the issue. The Z Stepper was incorrectly wired.

A little strange that the Z stepper was plug and play on both the RAMPS 1.4 board I was using and the stock CR10 board.

Thank you both for the suggestions!
↧

Re: A4982SLPT compatable A4988 Driver

February 10, 2019, 12:34 pm
$
0
0
Quote
Dust
You still miss understand

the calculation is for max torque, most printers don't need to run at max torque and thus can run fine with lower vrefs. (and much lower noise levels)

when printers suddenly start layer shifting they normally need lubrication, not re adjusting the vref to force the printer to overcome the additional friction.

No, I did not misunderstand, Without knowing what Max Torque you have no ideal the max V-Ref you are allowed and adjusting past this point can be disastrous.
I am not running Max Torque my calculations .9 * 8 *.1 = V-Ref .720 I have been running .400 this value is too low and causes stepper motors to skip steps.
In turn it directly causes the layer shifting that the 3D Printer has been experiencing.

Took the calculations off my other 3D Printer where I was given factory settings for the V-Ref of 0.800 calculated the percentage from Max Torque to get 67%.
Actually I have been running the 2nd 3D Printer at .700 which is ~60% of the Max Torque calculated V-Ref setting. When I lower the V-Ref I get the same Layer Shifting.
Took this calculation into perspective for calculating an average for the 2nd 3D Printer By the Same Company came up with ~60% Adjusted V-Ref to .500
Only increased the V-Ref voltage up by 5%

Lowering V-Ref on the 2nd 3D Printer resulted in this Print.

Left Image is a similar Model, Right Image Incorrect V-Ref is Layer Shifted.
[attachment 109976 LeadScrewsMount.jpg]
↧
↧

Re: Dual Z nema 17's overheating

February 11, 2019, 11:45 pm
$
0
0
I played around quite a bit with these stepper drivers over the last week and they just don't want to run the steppers at a reasonable temp without missing steps.

I have them on separate drivers Z and E1, if I make a split cable and run them both from the same driver will that halve their operating current and enable them to run cooler?
↧

Re: Dual Z nema 17's overheating

February 12, 2019, 3:52 am
$
0
0
That machine normally runs with a single Z axis motor and screw. Adding a second motor should reduce the load on the first motor, unless the second motor set-up isn't done right.
Post a few pictures of the machine, especially the modification that adds the second Z axis motor and screw.
↧
Search

Re: Dual Z nema 17's overheating

February 12, 2019, 1:23 pm
$
0
0
Yeah it did have a single Z axis when my mate got it, it was a top mount setup on a flimsy acrylic plate. He set it up with dual Z steppers mounted on the bottom with brackets from thingiverse printed from PLA but the brackets he printed melted from the heat of the steppers and they were softening up and distorting every time the machine ran. So I ditched the printed brackets and ordered some metal brackets which should arrive in a few days.

It wasn't the load on the motors causing the issue it was the holding current when they weren't moving causing the issues during long prints. Some of the prints he was doing were big flat things where there was almost no Z movement , so the steppers were sitting for ages just holding the load on each layer. For thinner taller prints the motors ran colder than most of the steppers I've got on my printers.

He had two different lead screws in it when he dropped it off and they had a slightly different pitch which caused quite a few headaches until I decided to pull them both out and compare them.

The machine is in pieces right now so I can't really show you any pics. When I get the parts and get it all back together I'll post a few pics.

I'll be glad to see the end of the bloody thing to be honest, if it were mine I would have salvaged what I could off it and built my own RepRap with the parts.
↧

Apply TCM2208 up to 4A?

February 13, 2019, 6:34 am
$
0
0
Just can't forget the love of stealthChop the silence factor...
but the dual Z axis and heavy duty Y axis 42 motors are draining 2.7A and 3A, perhaps.

I wanna ask guys, how can I enlarge TCM2208 currency output by attachments?
or it's just my tiny dream going vague
↧
↧

Re: How to set up External TB6600 driver for Nema 17

February 21, 2019, 6:20 am
$
0
0
layers shift when the printer climbs layer i use tb6600 x,y Any Help
↧

Stepper Motors not Moving

February 21, 2019, 8:40 am
$
0
0
Hi all, I am building my own 3D printer using a Ramps 1.5 and Arduino Mega ADK board. I put the jumpers in, connected it to 12v 5A power supply, and when I connect my stepper motors they all bind up, if I take out the driver for a specific motor it won’t bind up. I checked the leads and both the drivers and motors are receiving 12 volts, my drivers are in correctly and I can even heat my extruded up, so I don’t think it’s a problem with the board. I changed the code in Marlin so that it recognizes my drivers as they are different from the default ones. Also when I go into Marlin and move an axis the motor unbinds and is free moving, if ANYONE can help me please I just can’t figure out what is wrong, thanks.
↧

Re: Stepper Motors not Moving

February 22, 2019, 6:15 am
↧
Viewing all 2228 articles
Browse latest View live
Search
<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>