Re: stepper motor NEMA 17 speed
Forget about RPM, thats from the old days when we used DC motors on the extruder. With stepper driven extruders we command a given length of extrusion, which is simpler and gives better quality than...
View ArticleAnyone had been worked with nmb stepper pm35s-048
Hi Again Does Anybody did worked with nmb stepper pm35s-048 and which circuit test without PIC had been used for it? thx
View ArticleStepper Motor Spin
Hello, This is my first time on this forum. I am building a Prusa Mendel. I have my x and y axis working. However, for my extruder, I tell it to extrude 5 mm, it spins in one direction. When I extrude...
View ArticleShort shaft stepper motors
Does anyone know a good source for stepper motors with a short shaft? The project I am working on needs slightly shorter shaft length than the standard 24mm. Something like 15mm would be ideal. There...
View ArticleRe: problem with hammering noise in stepper motor and not moving X-axis
Pez, Did a second power supply solve your problem? I'm having a similar hammering and rotation issue with my motors and looking for a solution. I'm running a 20A power supply right now which should be...
View Articledriver for stepper motors
I have stepper motors with the following specs: 200 steps per revolution (1.8 deg/step) 2 Phase bipolar 4 wires Rated Voltage 2V DC Rated Current 1.2A Phase Resistance: 1.7 Ohm ± 10% (20º C) Phase...
View ArticleI have stepper motor on 230V and Arduino with Ramps 1.4
Hello, I have only two stepper motor on 230V and Arduino 1.4. I want to control only two motor...X and Y axis. I can it through with relays???
View ArticleRe: driver for stepper motors
All RepRap controllers do current chopping, so having a low specified voltage is not only possible, but actually advised. I have steppers specified for 1.53 V running on a Gen7 with A4983 based...
View ArticleRe: I have stepper motor on 230V and Arduino with Ramps 1.4
I have never heard of stepper motors needing 230V and no you can't drive them with relays. Motors used for reprap are typically about 2V.
View ArticleRe: Anyone had been worked with nmb stepper pm35s-048
It has been done before, yes. Have you tried using Google?
View ArticleRe: I have stepper motor on 230V and Arduino with Ramps 1.4
... I have steppers with 325V and 3 phases, but they need special drivers ... but could be controlled by RAMPS with TTL outputs. Have you an image of the motors? - could be brushless (synchrone)...
View ArticleRe: I have stepper motor on 230V and Arduino with Ramps 1.4
325V? Won't they be really slow due to massive inductance? You would need thousands of volts to get them moving quickly.
View ArticleRe: I have stepper motor on 230V and Arduino with Ramps 1.4
Hi Chris, the motors can be reconfigured by the driver for fullstep counts of 200, 400, 500, 800 or 1000 steps per revolution with max. 20kHz or with 10x microstepping then for 2000 to 10000 s/r with...
View ArticleRe: I have stepper motor on 230V and Arduino with Ramps 1.4
But is 325V the DC rating of the coils, or the forcing voltage from a constant current driver?
View ArticleRe: I have stepper motor on 230V and Arduino with Ramps 1.4
Hi Chris, the drivers are specified with voltage outputs to the motors of 325V -- should be same as with common choppers, the initial voltage is set to max for higher torque and then reduced...
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Re: I have stepper motor on 230V and Arduino with Ramps 1.4
Hi Chris, found the relevant datas in another of my forum-posts - the motors are the VRDM 397 W (have one VRDM 3910 W too):
View ArticleRe: I have stepper motor on 230V and Arduino with Ramps 1.4
According to the datasheet the winding resistance is 6.5R and the current 1.75A, so they are actually 11V motors driven from a 325V supply. I don't think I have seen a stepper motor with a DC rating...
View ArticleRe: I have stepper motor on 230V and Arduino with Ramps 1.4
... the controllers are driven from line with 230VAC -- AFAIK the 325VDC are the initial voltage peak to spped up the energitizing of the coils, then the voltage is reduced for the 1.75Amps...
View ArticleRe: Nema 17 not beefy enough need help with driver selection
My level of electronics is very rusty but I think you could just add mosfet. It has 3 legs one is signal that when on tells power to flow trough the other two pins. They can easily go upto 8amps and...
View ArticleStepper Motors at Liquidation Prices!
Hey Everyone, Just wanted to let you know about our new web store for Mach Motion Products. We've got an overstock of steppers and drives at the moment, and we are looking to free up some space in our...
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