Re: Stepper motor controller
Ok buddy, I promise. no colored text. So now can I have the solution pls.?
View ArticleRe: Stepper motor controller
You need to decide on the stepper driver you purchase prior to building a power supply. For maximum speed you would need a 65 volt supply due to the high inductance of that motor. Drivers rated that...
View Articlestepper motor is getting heat up?????:S
hi every1, i am using stepper motor for my cnc machine...its model no is em284 stp-42d221-01 by shinani kenshi......i dont know any specs of this motor neither voltage rating nor current rating even i...
View ArticleRe: stepper motor is getting heat up?????:S
The stepper motor normally runs hot. Maybe your lower amp supply simply just can not provide the set current in which case they dont get as hot as the other case, but they miss steps and such. There...
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Imho 4mH is not *that* high inductance, and it certainly does not look like a high inductance motor type. So imho you could just buy a 24v power supply from ebay or use a 12v atx one. The 3.5A per...
View ArticleRe: Stepper motor controller
I suggest you search eBay for a stepper motor driver that can handle around 3.5A. Something like [www.ebay.co.uk] which has a 3.3A setting. I'm guessing that you will be moving the sample holder at...
View ArticleRe: stepper motor is getting heat up?????:S
Stepper motors (apart from very low power ones) should be driven by a constant current chopping controller, which is not what you are using. If the stepper motor is getting to hot, you need to either...
View ArticleRe: Motors just beep
I am having the same problem, I tried switching the wiring on one of my motors, but now my computer doesn't recognize my printer.
View ArticleRe: Motors just beep
1. Bootloader doesn't matter as long as you can upload a firmware. 2. Try to move slowly, like 100 mm/min. If this works, your motors are wired correctly. If not, see [reprap.org] 3. Adjust current....
View ArticleRe: stepper motor is getting heat up?????:S
Using an undersized power supply isn't the right way to reduce current. You have to get some current limitation into place or reduce voltage. That said, a constant current stepper driver is indeed a...
View ArticleRe: stepper motor is getting heat up?????:S
Quotedc42 Stepper motors (apart from very low power ones) should be driven by a constant current chopping controller, which is not what you are using. If the stepper motor is getting to hot, you need...
View ArticleRe: stepper motor is getting heat up?????:S
Quotearshia what do u mean by constant current driver??? i am using mosfet and obviously they would be constant current ...... nd resistance per coil is almost 3.9 ohms No, a mosfet driven as a switch...
View ArticleRe: stepper motor is getting heat up?????:S
Maybe he has a feedback loop, and depending on how it uses it, it could actually have something that is called "constant current stepper driver" or chopper. Just a mention, mosfets are used as...
View ArticleRe: stepper motor is getting heat up?????:S
NoobMan, the OP said he is using mosfets and optocouplers. I infer from his use of optocouplers that he is probably driving the mosfets as simple on/off switches without feedback. I hope he will...
View ArticleRe: stepper motor is getting heat up?????:S
I on the other hand, automatically presumed he has a feedback loop, because otherwise things are quite ugly from my perspective. The feedback loop job is to cut off the current when it reaches limit,...
View ArticleRe: stepper motor is getting heat up?????:S
Just read arshia mentioned 3.9ohms per coil. Then coil current would go to ~3amps. Quickfix could try 5v psu for the motors, something like an atx 5v line. Then current would go to 5v / ~4ohms = 1.25A...
View ArticleRe: stepper motor is getting heat up?????:S
About mosfets being used as switches, i think its a semantics difference of what that means literally. What the use of the words evocate / what expression is understood as. So ill try clarify what...
View ArticleRe: Stepper motor controller
Thank you all for your valuable suggestions. I am working on these suggestions. I will keep posting the developments.
View Articlemy stepper motors are not stepping
Hi everyone. I am building a rostock printer. I have bought my self a Megatronics board. I connected it to a power supply which provides a 10V voltage. I uploaded the MegatronicsTest Firmware to the...
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