Help needed for selecting driver
Hi, Can I use the easy driver to run a bipolar NEMA 11 captive stepper motor? Its current per phase is shown as 1 amp. Easy driver spec says that the adjustable current control is from 150mA/phase to...
View ArticleNeed help with servo end stop on Rambo 1.3
Can anyone help me with connecting servo to motor ext 1. I think i have it set up write but get the following error when compiling sketch: Arduino: 1.6.5 (Mac OS X), Board: "Arduino Mega or Mega 2560,...
View ArticleRe: Need help with servo end stop on Rambo 1.3
/Well I fixed the error above, but now i cannot get the servo to move, anyone have an idea?
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New Balance is good, in the end where the good?
New Balance is good, in the end where the good? grey%20purple-22444257-500x500.jpg It seems overnight, suddenly fresh scratch an NewBalance trend of the wind. Walking down the street, anywhere you can...
View ArticleMotors only turning one way
Hey everyone! After a few weeks of trial and error, and after frying two RAMPS boards, I finally seemed to have a working configuration... except that it doesn't work. So I went back to the beginning...
View ArticleRe: Motors only turning one way
1. Connecting two Z motors in parallel is generally a bad idea, even though lots of people do it (because they don't know any better) and RAMPS makes it easy to do. Almost all stepper motors used in...
View ArticleRe: Motors only turning one way
My problem at the moment is, I basically don't have a printer right now. My RAMPS is acting funny, so I'm trying to wait until I have all figured out to reconnect everything to the board. How could I...
View ArticleRe: Motors only turning one way
Also, what are the advantages and disadvantages of having them in series? I am no expert, so I don't understand...
View ArticleRe: Motors only turning one way
1. Google "wiring stepper motors in series". 2. Plug-in drivers have inadequate cooling for the driver chips, and already struggle to provide enough current to the stepper motors in many systems. If...
View ArticleRe: Motors only turning one way
Ok... After an evening doing tests I can safely say that I don't understand. I've tested X,Y and E motors and they work with a pololu driver, supplying 12V. I tried the Z motors, and they didn't move....
View ArticleRe: Motors only turning one way
I'll leave it for someone with more experience of RAMPS to answer in detail. However, the plug-in drivers do appear to be fragile, they are easily damaged by turning the motor current up too high or...
View ArticleRe: Motors only turning one way
Thanks for the input! I was able to reassemble the printer back together, and all the "damage" that I had seen has disappeared (lcd acting funny and thermistors not reading correctly). So I guess the...
View ArticleStepper motors increase speed when touched.
Hi, I'm working on a robotic arm and just hooked up my elektronics. All the steppers move just fine, but when I touch the motors they crank up the speed. What could be the cause of this? I've heard of...
View ArticleRe: Motors only turning one way
Ok.. a few hours have passed. I have been doing further tests, without reaching much of a conclusion. I was trying to reload the firmware with some of the right settings (fx. number of steps per mm...
View ArticleRe: Stepper motors increase speed when touched.
I guess it's related to long motor cables?! How do you know it's faster? Do you actually see it or does it only sound different? Did you twist the wires of each phase and then twist both phases to...
View ArticleWhich steppers for DIY Ultimaker 2?
So, I've decided to build my own 3d-printer from parts and use Ultimaker 2 as a base (github). I'm not planning to modify the original design too much but some improvements/changes I'd like to make....
View ArticleRe: Which steppers for DIY Ultimaker 2?
Whether or not a particular specification of stepper motor is suitable depends on which electronics you use, and what power supply voltage you use. So please tell us. In the mean time: - To get high...
View ArticleRe: Which steppers for DIY Ultimaker 2?
Thank you very much! :) I'm just in the beginning of my project so I haven't chosen any parts yet - better get parts that are compatible with each other. ;) I've already thought to use a 24V power so...
View ArticleRe: Which steppers for DIY Ultimaker 2?
Quoteharmaasilmä Great! Now my 3d-printer is not far from finished. :D Anyway, I have a further question: would this be a good choice for the z-axis? Would it work well with Smoothie/Duet? I would...
View ArticleRe: Which steppers for DIY Ultimaker 2?
Quotedc42For the extruder, I recommend using a gear ratio of between 3:1 and 5:1 with 1.75mm filament, and a stepper motor with 20 to 30 Ncm holding torque at full current, with a current rating in...
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