Re: Micro Stepping Issue
Hard to say from video but i think i counted like 10-15 jumps for something that looked to me like a 90 degree angle. Compare to motor steps per rev. Hard for me to see but maybe you can count the...
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It was indeed a 90 degree angle. I can hear the "clicks" inside the motor, however, the motors seem to resist the micro-stepping.
View ArticleRe: :SStepper Motors:)-D:)-D
Looks like you don't have any jumper on the board, under the drivers. All of them are required for 1/16 micro steeping.
View ArticleStepper motor increase rpm but keep torque
Is it possible that I keep the typical working torque but increase the rpm by raising my voltage to my motor? I have this motor and control board: motor board My current rpm is just 3.5rpm which is...
View ArticleRe: :SStepper Motors
Interesting. What exactly us a jumper. I've finally gotten them to move but my steps/mm is around 3.5 which doesn't really make sense but it does work.
View ArticleRe: Stepper motor increase rpm but keep torque
Without load, any stepper should run at least 500 RPM so just 3.5 is a bit odd, even under load. Also, the only substantial load on a printer should be acceleration, so reducing acceleration should...
View ArticleRe: Micro Stepping Issue
Yes but what i meant was that visually for my eyes, one "jump" does not equal one step. Where one step is per motor specification 1.8 degree or 0.9 degree. To me, one of those "jumps" look way more...
View ArticleRe: Micro Stepping Issue
It's not a firmware issue, as I already checked that, This stepper motor is 3.6 degree step angle, so it has a larger stride than most motors. This motor so I was told, was custom made for IBM.
View ArticleRe: Micro Stepping Issue
Aha ok so in that case a 90 degree angle would be like 90/3.6 counting 25 jumps, if makes 25 jumps then seems right. I see your motor is unipolar 6 wires, so have you tried using only half of coils...
View ArticleRe: Micro Stepping Issue
It is a 6-wire, but I have it wired as BiPolar. I have checked the resistance, and it's aprox. 1.3 Ohms per coil. I have not tried running it half-coil yet.. Should I? The LiPo battery I am using is...
View ArticleRe: Micro Stepping Issue
If it is 1.3ohms per coil then i think using half coils probably wont help. I was thinking maybe if it was like 8-9 ohms then half coils could of made bigger difference. Then imho try change the...
View ArticleCNC motor and electronics choice
Hi all, I'm gooing to choice a motor for my project. I want to have low cost electronics but enough to run my cnc. Dimensions are 1000mmx450mm the movable axis is long 1000mm and it's weight is from...
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Belt Drive Expected Resolution vs. Accuracy With MicroStepping.
How much accuracy are you giving up for resolution, are you really getting the resolution that you calculated using microstepping? Using a belt drive, and microstepping, what is your expected...
View ArticleRe: Belt Drive Expected Resolution vs. Accuracy With MicroStepping.
QuoteA2How much accuracy are you giving up for resolution, are you really getting the resolution that you calculated using microstepping? With the stepper driver properly adjusted, yes, that's...
View ArticleRe: Belt Drive Expected Resolution vs. Accuracy With MicroStepping.
@Traumflug: QuoteTraumflug With the stepper driver properly adjusted, yes, that's possible at the pulley. Thank you for the explanation, that's what I needed to hear. (tu) QuoteTraumflug Frame and...
View ArticleRe: Belt Drive Expected Resolution vs. Accuracy With MicroStepping.
Another one is: there are 14 tooth pulleys. Raises accuracy by 43% (compared to 20 tooth) and gives more acceleration force on the belt.
View ArticleRe: Belt Drive Expected Resolution vs. Accuracy With MicroStepping.
Great suggestion to use a smaller pulley to improve accuracy, I will look into it. Tks. Presently I'm having some difficulty in determining how many 2mm GT2 belts that I will need to gang together to...
View ArticleSlow feed rate on stepper driver
Anyone with a good clue here? I'm building a reprap, and i'm testing motors. Setup is an arduino mega 2560 with ramps 1.4 and an 12V 8A psu. Just one nema17 hooked up. When i move the axis in...
View ArticleRe: Slow feed rate on stepper driver
Nevermind. Turns out i needed to adjust acceleration ;-)
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