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New Titan Slimline motor seizing (1 reply)

July 4, 2017, 3:12 am
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I realize that there is another post regarding a vibrating motor on the same page of this board, but that poster's solution had to do with his wiring and I am fairly certain that my wiring is fine as the cable was provided by e3d with the motor and I have been able to control the motor through other stepper output connections on the board with this cable.

I am installing a new Titan extruder with the e3d Titan Slimline motor (link). When I attempt a manual extrude command, the motor seizes/vibrates but will not turn. This new motor does 0.9° as opposed to the 1.8° motor I was using with the stock extruder. I have adjusted my steps/mm value to 837 as recommended by e3d.

I tested the motor on the Y-stepper output on the controller and was able to manually control it through Repetier just fine through that connection, so it appears that the motor is functional. I also tried reconnecting the previous stock extruder motor to E0 on the controller to make sure I hadn't fried that connection on the board, and it worked just fine as well, so I don't think I have burnt anything out.

Any suggestions? Could it be that the potentiometer is set too low/high for the new motor?

Thank you for the help!
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Motors & Cable management (current rating) (no replies)

July 20, 2017, 1:20 am
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Hello, I'm new here : I ordered a Prusa i3 clone with all the kit to assemble by hand, and i have to say i'm pretty satisfied of the prints I did until now :) .

I want to organize the cables, because it's a nightmare . I planned to use a multi contact connector ( so male + Female) to assmble all . I found one, Wepiu WS28 24 pin ( Page 47 [www.weipuconnector.com] WS28,24 pin) , but the seller is telling me the whole connector is rated @ 5Apmeres ( so 5 divided by 24 == 0,2A per pin MAX), tell me if i'm wrong ? .

I looked up my motors and found they were 2 phases and 0,6 A per phase acording to this PDF [www.datasheetspdf.com] , but I'm not sure about the Phases and the A per phases ....

The motors are not the same on the PDF, but the series are the sames : 17HD4005 . The exact reference of my motors is 17HD4005-C5.18 ( [www.youtube.com] 2:28 of this video) .

I found another information according to this PDF : that curent is not the same as the other [www.ecet.cn] on this one Current is 0.5A idk if this is per phase or not .

I know i'ts 2 phases but is that 0.4 or 0.6 A per phase or the whole motor ?


I cant find any technical documentation on what is consumed by the motor i own :(

My question is : will this WEIPU connector be able to handle all the phases by the motors ? I have another solution, such as using a DB-25 connector but i'm not able to find any datasheet for this type of connector . I mean for the rated current of the connector .

All help here would be greatly appreciated :)
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TMC2208 installation? (no replies)

August 6, 2017, 11:11 am
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I just purchased 4 TMC2208 drivers but am unable to locate pinouts or installation instructions in SpreadCycle mode on my Anycubic printer. My board has no jumpers so I expect I'll need to do something like the old TMC2100 "remove 3 pins (if required) and jumper these two pins" but will need to know exactly which. Can anybody point me in the proper direction? Thank you!
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Where'd the PWM control of my cooling fan go? (no replies)

August 10, 2017, 3:16 am
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This may have been going on for some time as the Anycubic which I'm using has the cooling fan hidden on the effector's back side. But I've just noticed that it's no longer responding to On/Off/Speed commands given it by S3D nor to my own adjustment via the LCD. I've been googling a while without success, any guesses here?
Thanks!
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Stepper motors miss stepps (no replies)

August 18, 2017, 10:28 am
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Hi
Have an CoreXY printer with Nema 17, A4498 stepper drivers and Ramps 1.4.
2 motors become hot + 100 degrees. I lowered the voltage on the stepper drivers down to 0,42.
Motors now about 50 degrees BUT now it skip stepps.
What to do?
BR
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Stepper dont move but make sound (2 replies)

August 19, 2017, 8:07 am
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Hi,

For the first start of my printer with marlin, i try to move axis and, problem, i can't move axis but NEMA Stepper 17 makes sound, look Z,Y,Z mp3, files is available on the links below (sorry, no attachments because the files is larger than 614.4KB)

X : [mattheo-prl.fr.nf]
Y : [mattheo-prl.fr.nf]
Z : [mattheo-prl.fr.nf]

So, i try to upload Ramp test code (http://reprap.org/wiki/File:RAMPSTestCode.pde), and motor is moving, but with marlin, no :/

If you have any ideas, help me please ;)

Marlin configuration is available in attachments.

Sorry for my bad english level.

Thank you,
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Unknown specification NEMA 17 stepper motor (no replies)

August 22, 2017, 6:13 am
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Hi,
I found some used stepper motors from streets of our local electronics market, which are in working condition.
All I know about those motors are
1. NEMA 17 form factor
2. 2 phase bipolar (4 wire)
3. coil resistance 2.1 ohm.

Now as per Ohm's law if I assume that its current rating is ~1.5 A (which I think more of a standard in these types of motor), then the voltage rating comes as ~3.15 v (2.1*1.5).
I understand that I have to use constant current chopper driver, that would reduce the driver at standstill mode, and increase voltage while running.
The question is which driver I safely use to drive these motors. Can DRV8825 be an option? If so what psu I should use to drive it. Can I use a Computer SMPS?
Additionally I have a L293d shield. Can I use this shield at least to drive the motor to see it running. Can I add a small hi power resistance with the motor coil in series to achieve this?

Thanks in advance.
Debojit
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closed loop integrated steppers (no replies)

August 22, 2017, 10:32 am
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3d printer- STEPPER - HELP (1 reply)

August 28, 2017, 4:38 pm
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hi
I tried to build a 3d printer by MARLIN firmware , but I have some problem. I'm in the first step I just connect 1 stepper to a ramp1.4 with a driver ( also i configured marlin ) but when I want to control the stepper in the first time, it doesn't move and just trembled but after 30 second it work while if I restart it or it stops for more than 1 min , again it doesnt work and I have to wait for some second which means that after any stop it doesnot run some first commend.
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Speed of my stepper motors (1 reply)

August 31, 2017, 12:33 am
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Hi,

I'm building my first 3D printer, and I'm struggling with a challenge. I'm testing my stepper motors and, although I can make them move correctly, I can not make them move very quickly without them stalling. If I move the engine more than approx. 1500 mm/min in octoprint they stop moving and just make a terrible noise. The engines run freely, I have not yet put a load on them.

My printer is a CoreXY design, and I have only connected the x and y motors to my RAMPS 1.4 card. I am using DRV8825 drivers that are set to a voltage of 0.650V, which should give a current of 1.3A. I have until now only connected drivers to the x and y axis. The drivers are set for 1/16 microstepping. The power comes from a PC power supply and I have only connected the 12V to the 5A-port of the RAMPS.

The motors are RTTM 17HS8401:

[www.aliexpress.com]

Am I doing anything wrong, or can these motors not move faster?

Edit:
I just wanted to add that Marlin is set up to 100 steps/mm. :-)
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One of the Z motor not moving when auto home after first touch (no replies)

October 5, 2017, 2:23 am
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As per subject title, I'm currently having an issue with the Z-axis motor. I used 2 motors for my Z-axis and they move fine pressing + and -Z from software. However, whenever it auto home, after the first touch of the Z-endstop, the other motor would not move in a slower speed like the working motor but instead it stopped moving. What problem am i facing.? Please help!
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Ramps and Nema 14 (no replies)

October 5, 2017, 1:13 pm
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I have been given 5 Nema 14 stepper motors rated at 5.4 volts

Could these be driven from a ramps board as the PSU is 12 volts?
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Strange situation with stepper motor (no replies)

October 14, 2017, 12:51 pm
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Hello to everybody,

I have a stepper driver shield (for Arduino UNO) and Arduino Mega2560 :D
(And use GRBL for mega2560)

I connected only one motor on z-axis for my tests and this is the result.

Connect pin for DIR and STEP, connect pins for clock and strobe, connect pin for enable.
Connect Vin and ground, 12V directly on the shield and USB to arduino for the logic.

All is ok and the stepper work great.

BUT

on arduino there is a 5V pin. I read many article on internet and this pins is needed to power the logic.
If I connect the stepper going into a freeze, if disconnect work fine.

How it's possible? I break my electronic if i leave it disconnected?

Link of schematics
[www.futurashop.it]

Thanks
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Z axis faster than xy axis (2 replies)

October 22, 2017, 9:59 am
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Hello everyone, i'm strugling in feedrates and aceleration, cause I cant insert more than 5mm/s in xy feedrate and 5mm/s2 in aceleration(more than this value and i get skiping steps), but in z axis i can uise more and get no trouble, but they are same step motors.Im using drv8825 , 2,2 kgf stepmotors with no microsteps, and ramps 1.4.
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Stepper driver problem (1 reply)

October 23, 2017, 12:48 am
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Hi, this is a question that is related to the use of the TMC2208 silentstepstick and similar stepper drivers. When I apply 24v to the VM/ground pins, the driver chip gets fried. This happens regardless of whether I have an arduino connected to the step/dir pins or the enable pin grounded. This also happens regardless of where there is 5v going to the VIO pin or regardless of whether the stepper motor is connected. This motor power supply is a 24v dc unit rated at 5 amps. The actual chip itself gets fried as soon as the VM pin sees 24v. It feels like it is just instantly drawing a huge amount of current as soon as it's connected regardless of whatever else is connected. I tried a similar setup with a DRV8802 and the same thing happens. I have used these many times for different applications, 3d printers and other things and I have never had this problem. Any ideas? I have posted at stackexchange with a schematic which I will attach here. Thanks so much for any help.
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Dual Z single stepstick (no replies)

October 23, 2017, 9:06 am
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I am pre thinking how I am going to setup a hypercube evolution build I hope to make happen soon.

I want dual Z drive, I am likely to use an MKS Gen 1.4 board like I have in my baby cube I use now.
I have TMC2100 stepsticks and love them!! But they have pretty low current capacity...

IF I run dual Z motors in parallel on one step stick I think I am unlikely to have the power I need....

Suggestions?

Oh I plan two extruders so I cant use dual drivers on this setup.....

Maybe I should look at a Rumba so I can run six step sticks....

What other decent boards are there with six step sticks... Seems like there is always something I don't like on every one I look at....
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Which motor to choose? 1.8deg 59Ncm vs 0.9deg 46 Ncm (no replies)

November 23, 2017, 10:44 pm
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So, I'm building my second printer based on the AM8 plans on Thingiverse. I'm thinking of buying either these 0.9deg 46Ncm motors (here) or these 1.8deg 59Ncm motors (here). My current printer uses 1.8deg motors, and I was wondering if I could increase print quality with 0.9deg motors on all axes? To do so, I have to sacrifice 13Ncm of holding torque, and I'm not sure what holding torque value I should not fall under.

Any recommendations?
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Can i run DRV8825 with this NEMA motor :S (no replies)

December 2, 2017, 3:02 pm
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Hi family , i want buy a stepper motor Nema 17 17HS4401

The current per phase is 1.7A i want know if i can run it with DRV8825 driver with any problem or burn the driver?
Thanks
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TMC2100 driving dual Z - thermal shutdown? (no replies)

December 27, 2017, 12:36 pm
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I have a Tevo Tarantula-style printer with dual Z (two identical motors connected to a single TMC2100 in parallel) with MKS Gen 1.4 board.

With Vref set to 1.2V, making RMS 1.2V*0.7A/V = 0.84A, which does not seem excessive.

Symptom: about 20-30 minutes into the print, Z axis stops moving. It's pretty easy to rotate by hand, you can feel the steps, but not much resistance.

Hypothesis: thermal shutdown?

Head scratchers:
1. Cancel the print, then immediately go to Control and move Z axis, it moves as if nothing was happening!
2. I run X and Y closer to 1.4V, and their motors get to 45C with no ill effects. Z motors are barely 28C (but there are two in parallel, remember!)
3. Measuring temperature optically through the cooling fins reports ~27C on Z driver, 28-29C on X and Y. Does not look anywhere close to panic levels.

Any ideas?
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extruder working but not XYZ (no replies)

January 18, 2018, 1:59 pm
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Hello. I recently completed putting together a prusa i3 with RAMPS 1.4. I loaded it with the reprap test code found at (http://reprap.org/wiki/File:RAMPS1.4_TestCode.pde) everything works fine and all the motors move back and forth some. When I load it with Marlin firmware I am only able to make the extruder motor move. XYZ do not move and simply make noise. I am using Pronterface to run test commands. Any help would be appreciated and please assume I am stupid. Thank you
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