Search:

I made a short video. You can see that servo moves in steps instead of smooth rotation. Also there is a dead spot visible. You can see the video here:


https://www.youtube.com/watch?v=LKdvuXLQuI8...

I'm using servo motor from company STOBER (model ED203UROS040). I opened it up and counted the coils. It has 20 coils. Then I hooked it up to the power supply to low voltage so that I could feel the...

I'm reading this thread all the time and really feel sad about how things evolved. I was really hoping for clever minds to sit together and make a solution. Instead of this a can read who's, will be,...

Stop trolling! Get back to the topic!!

Hi Dale. I can redo your layout, no problem. It will take a bit because i'm quite occupied with my job at the moment. Just send me the files or put them hire in the thread. But then I ask my self if...

I'm also at the finish with the project. I just have to fit the heatsink and make tests. Mihai made the drivers the way they suit him and put the whole project on the internet for free. Hi did it...

Here are my eagle files if someone is interested in making my version of the board.

With microstep settings you divide the main step into smaller sections of it.

1:1 means that one pulse would move the stepper 1 step ahead
1:2 means that one pulse would move the stepper 1/2 of a...

Few days ago I ordered a set of PCB's. It should arrive in a couple of days. I still have to source some components but the majority of it I have allready. I went for SMD type and changed some...

Thanks for suggestion Mihai! I thinked it over and decided, that I won't widen the tracks. Instead I removed the solder mask from tracks so that I can solder copper wire on the traces. With this I...

I've not intended to make PCB on my own. I will order them locally because I need 4 boards for my future CNC machine. I made few small changes to the PCB outlay, changed few components, made labels...

Hi there.

I made a new PCB design mostly built of surface mount components. It's not finished yet. It still neads some silkprint, labeling and optimisation. When I'm done I can give the files if...

2. Terminal block quick-connects seem good. You can not easily disconnect them (like pull on one wire), but they are not a good choice in general for a good contact. Gluing is recommended or change...

I received my driver this week. I ordered it on ebay from Rattm Motor. First thing I checked is the contact of the driver chip with heat sink. There was a gap of 2mm! between them. They put some...

Woltage divider made of 16k resistor 5k trimmer and 1k5 resistor would make current between 1A and 4.38A, leaving 6 parallel resistors of 0.68 Ohm at NFA/NFB.

262320

RNFA=RNFB=0.11 Ohm
CCW...

Regarding point I:

In datasheet is written 0.11Ω ≤ RNF ≤ 0.5Ω, 0.3V ≤ Vref ≤ 1.95V

You made a voltage divider with 22k and 2k2 resistor and 10k trimmer. If you turn the trimmer fully CCW you...