Re: Series vs Parallel z-axis steppers
Just cause they turn doesn't mean everything's wired right. I had a similar issue when I first started hooking up steppers and it wound up being a wire that wasn't making contact very well, and the...
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QuoteNewPerfection I run my Z axis motors in parallel, with a Vref of 0.4V, giving about 1A total current, or 0.5A per motor. For most machines this should give plenty of power to drive the Z axis.I...
View ArticleRe: Series vs Parallel z-axis steppers
What kind of pololu that is and how hot it runs, if you put your finger on it. Perhaps instead of 0.05 the sense resistors might be 0.10 and then its like 1.5a total, which feels more reasonable than...
View ArticleRe: Motors wont turn same old same old
I don't have a datasheet since I bought them off of ebay but here is the link to the motor, Ill ask him for a datasheet. [www.ebay.com]
View ArticleRe: Motors wont turn same old same old
Ramps (2B )(2A)(1A)(1B ) You need to wire as follows: (2B = 1)(2A = 3)(1A = 4)(1B =6) or (2B = 3)(2A = 1)(1A = 6)(1B = 4) I think that is correct from what you provided. The numbers following the 1A,...
View ArticleRe: Motors wont turn same old same old
Wait... I think I provided you with the wrong information. Now that I looked at my ramps board I realized that I had it wired up so that one coil was on the inner two pins and the other was on the...
View ArticleRe: Motors wont turn same old same old
Quotejtoombs Wait... I think I provided you with the wrong information. Now that I looked at my ramps board I realized that I had it wired up so that one coil was on the inner two pins and the other...
View ArticleRe: Motors wont turn same old same old
Okay so then I do have my motors wired correctly, I have them as pins order 1,3,4,6. I have the two wires for a coil on one side and two wires for the other coil on the other side. I checked the...
View ArticleRe: Motors wont turn same old same old
Quotetyscof Okay so then I do have my motors wired correctly, I have them as pins order 1,3,4,6. I have the two wires for a coil on one side and two wires for the other coil on the other side. I...
View ArticleRe: Motors wont turn same old same old
Ok the motors not moving in reverse makes sense now since they are not homed, and No I havent messed around with the steps per mm, in the firmware right? I could see how that would throw off accurate...
View ArticleRe: Motors wont turn same old same old
Quotetyscof Ok the motors not moving in reverse makes sense now since they are not homed, and No I havent messed around with the steps per mm, in the firmware right? I could see how that would throw...
View ArticleRe: Motors wont turn same old same old
OK so we have movement! I change this value which I think is what I was supposed to, it was this #define _AXIS_STEP_PER_UNIT {80, 80, 3200/1.25,700 and I changed it to this }#define...
View ArticleRe: Motors wont turn same old same old
Yep, I set them to around .5 which is right for my drivers, It seems like the y stepper is working great still having trouble with the x now it doesnt want to move again even with the #define...
View ArticleRe: Motors wont turn same old same old
Quotetyscof Yep, I set them to around .5 which is right for my drivers, It seems like the y stepper is working great still having trouble with the x now it doesnt want to move again even with the...
View ArticleRe: Motors wont turn same old same old
Ok so If I set my #define _AXIS_STEP_PER_UNIT higher like to 100 the smaller step like.1 works fine but when I try to hit 1 it just makes a high pitch noise and doesn't move. I set it to 100 because...
View ArticleRe: Motors wont turn same old same old
Quotetyscof Ok so If I set my #define _AXIS_STEP_PER_UNIT higher like to 100 the smaller step like.1 works fine but when I try to hit 1 it just makes a high pitch noise and doesn't move. I set it to...
View ArticleRe: Motors wont turn same old same old
Do you mean this: #define _ACCELERATION 1000 // Axis Normal acceleration mm/s^2 and this: #define MINIMUM_PLANNER_SPEED 0.05 // (mm/sec) what should I set them too?
View ArticleRe: Series vs Parallel z-axis steppers
Doh. I feel really kinda foolish now. I'm not sure where I got the .05ohms for the sense resistor, but I finally got some free time to double checked things and it wasn't .05 ohms. It was .3 ohms....
View ArticleRe: Series vs Parallel z-axis steppers
Oh, 0.3 rsense is rather big, i think there are like two caveats you should watch for, one the voltage across rsense has to be less than 0.5v, and another is vref(max) should be less than 4v when...
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