Driving 12v Steppers at 90V? (1 reply)
I am starting a large CNC build and I have a general Stepper motor question. I bought 3 Nema 23 steppers with the following specifications. 12V, 0.68A, 30mH, 200 steps a Rev On my test rig I am...
View Articlestep motor info help (1 reply)
hello, i have two sets of step motor, one its a miniangle stepper model 23lm-c377-03, 1.8 deg/step 3.8v/phase ,1.15A/phase and the second its a Kp56lm2-097 Unipolar / 2 phases 6 Volts DC (nom) 1.2...
View ArticleHow to calculate stepper motor power requirement? (5 replies)
I just want to calculate the max power requirements of my stepper motors so I can factor that into my power supply choice. It sounds like a simple question (P = V x I), but I've found so many...
View ArticleStepper motors with 7.5deg steps? (4 replies)
Hi RepRap, First post. Much to learn, I still have. yes yes. I've dismantled an old (~2011?) HP laser printer, knowing that I could get lots of stepper motors and useful parts. Turns out they're all...
View Articlebuying parts for auto leveling (2 replies)
I am following this video series to add auto-leveling to my Prusa i3. [youtu.be] I have printed the parts I need and have the servo and ss-5 endstop in my cart at Amazon. What I need to know is what...
View Articleextruder acceleration/deceleration during printing (1 reply)
Hi folks, Might be a simple question or might not. As the hotend moves around printing, does the extruder accelerate/deccelerate the feed rate of filament as it changes direction? Many thanks, Andrew
View ArticleStepper or brushed DC motor with sharp and fast turn (1 reply)
Hello, Wondering if I can find some small and fast programmable stepper or brushed DC motor or something else so desired size diameter 25 maximum 30mm on width 20mm maximum 30mm, which can provide a...
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Can I cover the back of the stepper motor (1 reply)
I was going to place a heatsink that covers the back of the stepper motor and this would be covering the open hole area. I was wondering if this was acting like a breather hole and covering it would...
View ArticleRamps 1.4 x-axis broken (no replies)
I tried hooking up a stepper motor to the x-axis and it does not turn, even when running the test code which is found here The other axis work fine though. The setup worked about a week ago. The only...
View ArticleHelpppp (2 replies)
hello i am a mechanical engineering student completing project at the minute.The project involves the use of a Bi directional stepper motor that is connected to a blade inside of a cylinder.I need...
View ArticleNeeding Help With Egg Turner Project (1 reply)
Hello, I am trying to build an automatic egg turner for my incubator. I have a powermax stepper motor model # P21NRXA-LNF-NS-02. I am needing to know what all I will need to make this work. What kind...
View ArticleCheapest place to get Nema 17 stepper motor? (1 reply)
Hi, I am planning on building a 3d printer on a tight budget, and so since I need 5 stepper motors, $12 usd for 1 nema 17 on ebay is more than I would be willing to spend. So I was wondering if anyone...
View ArticleHelp Finding Drive/Controller (no replies)
Hi all, I'm looking for help locating a drive for a stepper motor. It is an 8-lead, 2-phase motor, with a max operating voltage of 120 V DC and an operating current of 10 A/phase. I'm looking for...
View ArticleAdvice on motors for c-bot. (3 replies)
I wish to upgrade my Prusia I3. I am considering making the C-Bot core-xy printer. The BOM for this printer states the NEMA17 motors should be 68oz-in (48N-m) or better. Looking at Ebay I can find...
View ArticleMotor with Fast rpm at the start and Slow rpm at the end (3 replies)
Hi, I am from mechanical engineering background and have limited understanding of motors. Right now I designed a device which needs high rpm (~310rpm) at the start and slow at the end (8rpm) in a...
View ArticlePrinter tremble (3 replies)
Guys i need some help again. My second mendel is trembling and i think is is relative to the speed ( more speed => more trembling.) Yesterday looking around at the net i saw it is stepper noise...
View ArticleMotorcontrollers needing 5v, and RADDS 1.5 giving 3.3v (no replies)
Hi, so im building a printer with Udoo QUAD, RADDS 1.5 and some other goodies. Been dry testing everything all over my office, and ive got everthing working. And then i got to the larger drivers im...
View ArticlePrusa i3 steppers (2 replies)
Hi there all I have my prusa assembly 99% complete now i need to buy the stepper motors but on internet i find a lot of steppers with diffrent holding torque What models of steppers do you use for x y...
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powerlolu ordering (12 replies)
So while i was planning out my 3d pirnter project i realized i could not avoid the powerlolu. So i found the pcb files and sent then in for a quote at a pcb plant. So long story short if anyone is...
View ArticleSpeed and torque calculation of stepper motor (1 reply)
The bipolar geared stepper motor I am planning to use has a resistance/ phase of 8.5 ohms per phase, inductance of 2.14mH per phase , normal current per phase is 2 amps, holding torque of motor is...
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