A4988 driver not working near a relay circuit
Hi i am driving a stepper motor with a reprap A4988 driver in my setup i am also having a heater which is controlled by a relay. I have to keep the temperature constant by switching the relay, some...
View ArticleRe: A4988 driver not working near a relay circuit
Noise is certainly a cause to consider. Keeping wires apart and also braiding them is a good idea: [www.reprap.org]
View ArticleRe: A4988 driver not working near a relay circuit
Ditch the relay and use an SSR or mosfet instead, depending on what voltage and current you are switching and whether it is AC or DC.
View ArticleMiniature Couplings with variable diameters
Hello all. I have been looking into stepper motors and shall be purchasing some soon with a 4mm shaft. I am looking for a small coupling (preferably backlash free etc) that will connect to a 4mm shaft...
View ArticleProblem with StepStick and 1.2A Stepper
After a lot of failed POT tuning I've decided to come to you: I'm working on a project which involves a NEMA 17 and an Arduino, and having some experience on the RepRap world, and having used it...
View ArticleReprap test code explanation
Hi there reprapers!! Im quite new to this and trying to figure something out. If I run the test code (Below) with just one motor plugged in to x, my motor goes backwards and forwards in a loop as...
View ArticleArdunio sketch advice!
I'm wanting to run a sketch on my set up (velleman K8200 printer controlled by Arduino mega, RAMPS 1.4 and pololu A4988 stepper drivers) but not having any joy with it. I looked at the RAMPS 1.4 test...
View ArticleRe: Miniature Couplings with variable diameters
Hi Dan. Clamp couplings are either a fixed size bore with a split to clamp onto a shaft or slightly oversized bore with screws to clamp a shaft. I've not come across any that would adjust as you...
View ArticleClunking steppers at end of move command DRV8825
Hello. I have an issue with X & Y movement on a coreXY machine. I'd previously had no problem with A4988 drivers at the same speed. I (embarrased) fried my RAMPS board and steppers and replaced...
View ArticleDisable the servo when the printer is idle?
How can I turn off the servo when the printer is idle or printing? The servo keeps making a humming sound (there is no binding), I want the power to be cut to the servo when it is not in use. I only...
View ArticleRe: Miniature Couplings with variable diameters
Quotealan richard Hi Dan. Clamp couplings are either a fixed size bore with a split to clamp onto a shaft or slightly oversized bore with screws to clamp a shaft. I've not come across any that would...
View ArticleGen6 Electronics Stepper Motor Pin Outs
Hi all, I'm using an old Reprap Mendel for a new project but am having some pin out issues with it's Gen 6 electronics. Does anyone know the pinouts for the XYZ stepper motors in terms of...
View ArticleAdvice for a wear resistant extruder cable.
Hello, on my machine, which is an Ultimaker clone, the extruder motor is connect to the mother board by a 20 pins ribbon cable. The problem is that, apparently, due to the many movements of the print...
View Article2ch remote with l298n and nema 17 connection
Dear all, I need help about connecting these three things, if possible... I have 2ch remote control, l298n driverboard with manual speed adjustments and forward and backward rotation, and nema 17-with...
View Articlestp 58D211 -02 Shinano kenshi
Hi every one, i've bought an used stepper motor with the "STP 58D211 -02" code on it. it's of Shinano kenshi's old products. All I know about that is, it is a 1.8 degree stepp motor with 1.5 ohm...
View ArticleRe: stp 58D211 -02 Shinano kenshi
Looks like that is an old model as it's not in their current catalogue. You could try emailing Shinano, see [www.shinano.com]. You could also look at the specs of similar motors they list on their web...
View ArticleRe: stp 58D211 -02 Shinano kenshi
Dear dc42 Thanks for your reply. I've looked on their site. But unfortunately I don't know what does those codes mean. Ofcourse I've send them an email, but I didn't recive no mail yet. Can any one...
View ArticleRe: stp 58D211 -02 Shinano kenshi
Look for a stepper motor on that site that has the same or very similar dimensions, and a phase resistance close to the 1.5 ohms that your motor has. Read off the current and torque for that motor,...
View ArticleRe: stp 58D211 -02 Shinano kenshi
Dear dc42 Thanks for your kindly and valuble replies, I've looked on Shinano's site. There is a pdf file on download tab, that contains some basic theory about stepping motors and of course...
View ArticleRe: Gen6 Electronics Stepper Motor Pin Outs
I don't know in your terminology. Maybe this helps: I replaced Gen6 by Ramps on Mega The Gen6 connector was: blue / red / green / black The Ramps connector was: Red / Black / Blue / Green I had to...
View Article