Re: Motor with too little torque
Hello, Ok, your situation is a little different from what I first imagined. Some important points which are not always 100% that way but which can generally be counted on: * Digital electronics fails...
View ArticleRe: Motor with too little torque
Hi, That are two things I didn't even consider, I'll try to do those tests and report later on this week. I have a fully functional power supply running my computer right now so that won't be a...
View ArticleManual motor movement and saving the steps
Dear all, I would like to ask for ideas (will be even more happy with finished solution). I have a stepper driving a linear glide, belt type. Is it possible to move the glide by hand to different...
View ArticleStepper motor wont turn
One of my stepper motors for a 3D printer just vibrates and doesn't turn, it used to though. [www.banggood.com] I have tried swapping the connection, changing the step stick but doesn't work. I have...
View ArticleRe: Stepper motor wont turn
If the same stepstick and cable work on a different motor, then I suggest you take the faulty motor apart and look for a broken wire.
View ArticleRe: Stepper motor wont turn
I ordered new step sticks which came today but still the same problem. Using a volt meter testing the coil pares there is continuity. I now believe it might be the ramps board as now both x and y...
View ArticleRe: Stepper motor wont turn
Solved :X It was a firmware problem -_- // For Inverting Stepper Enable Pins (Active Low) use 0, Non Inverting (Active High) use 1 #define X_ENABLE_ON 0 #define Y_ENABLE_ON 0 #define Z_ENABLE_ON 0...
View ArticleStepper motor gold standard
As my first venture into 3D machines still works well after 1,5 years running. Now I have changed a little of the delta design, making it more and more precise, adjusting a couple of thing here and...
View ArticleRe: Stepper motor gold standard
On a delta I think it is worth using 0.9deg/step motors instead of 1.8deg/step. They don't cost much more, but they improve the positioning accuracy, in particular along the Z axis. I recently...
View ArticleRe: Manual motor movement and saving the steps
It is a little late but who knows if somebody comes across this in a google search or something, so; No. It is not possible. You need an optical encoder, hall sensor or other type of rotary encoder....
View ArticleRe: Manual motor movement and saving the steps
Yes it's possible, but you will only be able to count full steps of the motor, and it may be quite hard work to filter the signal generated by the motor (in hardware or software) to get accurate...
View ArticleRe: Manual motor movement and saving the steps
There is no standard way or approach to do this. It is not part of the stepper concept that there is any feedback (like there is on many other systems). There are no industrial components or...
View ArticleStepper motor moves greater number of steps in forward direction
Stepper motor moves greater number of steps in forward direction compared to the reverse direction. I tried swapping the wires connected to the driver, but had the same problem. void loop() {...
View ArticleRe: Z axis lose steps
Diagram for wiring It appears they are wired in parallel in this picture, improperly tuned steppers and overheating motors or drivers can also cause steps to skip.
View ArticleRe: Do the heatsinks on a A4988 make you nervous?
I have has some short due to the heatsinks. If you choose to use them you must make sure they are secure. I am running 1.5 amp motors and they don't even warm up the drivers so I didn't bother putting...
View ArticleRe: Stepper motor for prusa i3
The shafts on my motors are 22mm, body around 48mm. I am using Automation Technology steppers on my prusa i3, seem to do the job just fine.
View ArticleRe: Do the heatsinks on a A4988 make you nervous?
Quoteanimoose I look at the heatsinks on a cheap A4988 board and they make me nervous. The sit very close to some of the passive components on the board. Does this bother anyone else? Any risk of them...
View ArticleRe: Do the heatsinks on a A4988 make you nervous?
Heatsinks placed on top os a A4988 chip are not very effective. These chips are designed to be cooled via the thermal tab underneath and thence by the PCB. The plastic case of the chip is not a good...
View ArticleRe: Stepper motor for prusa i3
Quoteicamaster I am currently sourcing stepper motors for my prusa i3. Is this motor ok? The holding torque looks alright (5.0kg/cm) but the motor is short length is only 34mm. Is it fine? No. Those...
View ArticleRe: Z axis lose steps
Most Nema 17 motors used in RepRaps are better connected in series, but low current high inductance ones are better connected in parallel. So we need the specification of your motors to be sure. As...
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