tag:blogger.com,1999:blog-4568680577295222114.post1991076077762786949..comments2024-01-05T02:34:17.951-08:00Comments on Power Cabristor: DRV8825 missing microstepsSchrodinger Zhttp://www.blogger.com/profile/17989216176264334886noreply@blogger.comBlogger38125tag:blogger.com,1999:blog-4568680577295222114.post-86132041782994726142022-04-21T04:05:32.120-07:002022-04-21T04:05:32.120-07:00If you want to download latest version of these C...If you want to download latest version of these Cracks Links are Here Below!!<br /><a href="https://fasisoftz.com/sweet-home-3d-crack/" rel="nofollow">Sweet Home 3D Crack Free Download</a><br /><a href="https://fasisoftz.com/cinema-4d-studio-crack/" rel="nofollow">CINEMA 4D Studio Crack Free Download</a><br /><a href="https://fasisoftz.com/av-voice-changer-software-crack/" rel="nofollow">AV Voice Changer Software Crack Free Download</a>crack foreverhttps://www.blogger.com/profile/17756303794266636900noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-58868862980334915582022-04-09T14:01:27.270-07:002022-04-09T14:01:27.270-07:00Casinos in Canada 2021-2022 - GoOmans
Casinos in g...Casinos in Canada 2021-2022 - GoOmans<br />Casinos in <a href="https://www.goyangfc.com/" rel="nofollow">goyangfc.com</a> Canada 2021-2022 · Casinos at Casinos <a href="https://vannienailor4166blog.blogspot.com/" rel="nofollow">https://vannienailor4166blog.blogspot.com/</a> in Canada. <a href="https://www.poormansguidetocasinogambling.com/" rel="nofollow">poormansguidetocasinogambling.com</a> Learn about online <a href="https://deccasino.com/review/merit-casino/" rel="nofollow">https://deccasino.com/review/merit-casino/</a> casinos in Canada, including casino list <a href="https://septcasino.com/" rel="nofollow">septcasino</a> for 2021.edwinacabellohttps://www.blogger.com/profile/03054300840940831096noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-62882633362371850212022-03-26T06:29:05.313-07:002022-03-26T06:29:05.313-07:00I Am Very Impressed With The Cracks That I Found O...<br />I Am Very Impressed With The Cracks That I Found On This Website: <br /><a href="https://fasisoftz.com/live-home-3d-pro-crack-free-download/>Live Home 3D Pro Crack Free Download</a><br />Anonymoushttps://www.blogger.com/profile/08484383857894199416noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-46873771291823047272019-03-10T16:22:38.361-07:002019-03-10T16:22:38.361-07:00What bridge diode specification should be used for...What bridge diode specification should be used for 1.5A stepper please?<br />Is a 3A rating high enough, or does it need to be higher since single diodes need 3A rating?Anonymoushttps://www.blogger.com/profile/01301563520782614491noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-54670748061361359602019-01-21T09:33:25.359-08:002019-01-21T09:33:25.359-08:00Hello I also sent you this comment on youtube, i d...Hello I also sent you this comment on youtube, i decided to put it in here: I am studying this behaviour on drv8825 stepper motors. In mixed decay mode I have found the problem when the stepper motor is running at low speeds, at higher speeds the current waveform is very acceptable but at low speeds it deforms very odd like in your post, I am thinking the real problem is the total impedance, when the motor is at low speeds the total impedance is mainly just the resistance of the winding, at higher speeds the impedance is the resistance plus the reactance of the winding, so it draws more current at low speeds. Then, at blanking time, the current tries to go full since there is no current control during that 4.7us resulting in stepping loss passing that blaking time the h bridge shuts down and current decreased but not much and the problem happens again, and again until it reach the espected amount of current at that microstep, that also happens at higher speeds but much less as the current is little because of high impedance. I hope I have explained myself clear, what do you think about that? Thanks!El Ingehttps://www.blogger.com/profile/03454427745828718658noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-66714447132413785512019-01-10T02:42:34.342-08:002019-01-10T02:42:34.342-08:00Hi all, first of all, I wanted to say Thank you al...Hi all, first of all, I wanted to say Thank you all for your appreciation!! and sorry for not being able to reply to all your questions.<br /><br />As you can see, blogging is not something I do regularly, mostly due to lack of time.<br /><br />In this case, with this post, I thought I had to share it because these drivers are quite common and probably many people are struggling with this. Since there was also an easy solution to the problem, it made a lot of sense to post it.<br /><br />If you would like me to write more about anything along this line, feel free to send me your suggestion. I've never considered blogging, but who knows...<br /><br />Cheers guys, happy printing!Schrodinger Zhttps://www.blogger.com/profile/17989216176264334886noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-76878811609011426282019-01-10T02:37:37.031-08:002019-01-10T02:37:37.031-08:00Hi, my board had the DRV driver soldered on the bo...Hi, my board had the DRV driver soldered on the board. I was measuring with a Tektronix TCP0030A current probe. These probes are pretty high bandwidth and make a very good current measurement.<br /><br />If you are measuring with resistors, you have to be careful with the inductance of the resistors. But if you are getting clean signals, that's a good sign. The inductance of the resistors will make a high-pass filter, amplifying noise and showing you very noisy measurements. Reality will be better than your measurement, so if you are getting clean measurements, that's good.<br /><br />A different motor will make a big difference, I was posting this mostly to help people that might be getting the same effect as me. In your case, if you found a different solution, go for it.Schrodinger Zhttps://www.blogger.com/profile/17989216176264334886noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-15642886920981420992019-01-08T16:09:07.366-08:002019-01-08T16:09:07.366-08:00Hello. I have been researching about this problem ...Hello. I have been researching about this problem and wanted to do some measurements also instead of just analyzing the prints. I have measured the current signal but in my case is far better than yours using mixed decay mode, the sinusodial wave is quite good in my opinión, unfortunately i can't send you a picture here. I Want to ask the type of stepstick you used, or if the driver came soldered to the motherboard since it is now an early model. I measured the current puting two .36ohm resistor en paralel and conected to one phase and measuring the voltaje across it, since this is and old post hope you can read this and reply me. ThanksEl Ingehttps://www.blogger.com/profile/03454427745828718658noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-66924633149430825552018-01-13T14:50:39.600-08:002018-01-13T14:50:39.600-08:00Hay que desoldar el pin de 12v y soldar un cable a...Hay que desoldar el pin de 12v y soldar un cable a 5v.Anonymoushttps://www.blogger.com/profile/08402366864498854665noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-80734066527193310762018-01-08T23:45:58.526-08:002018-01-08T23:45:58.526-08:00Can I use SM5408 instead of 1N5408?Can I use SM5408 instead of 1N5408?Anonymoushttps://www.blogger.com/profile/10558922926476983452noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-27603219541313001912018-01-05T05:04:11.687-08:002018-01-05T05:04:11.687-08:00Thank you very much!Thank you very much!Markhttps://www.blogger.com/profile/14884132315130245035noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-20667642037038915852018-01-05T05:03:53.346-08:002018-01-05T05:03:53.346-08:00fantastic work, thank you very much!!!fantastic work, thank you very much!!!Markhttps://www.blogger.com/profile/14884132315130245035noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-66278202929904140952018-01-04T09:43:34.134-08:002018-01-04T09:43:34.134-08:00where exactly did you measured the current? where exactly did you measured the current? Anonymoushttps://www.blogger.com/profile/09946612468069289946noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-81692019032050881352017-12-13T01:18:10.391-08:002017-12-13T01:18:10.391-08:00What about using Schottky diodes? They introduce 0...What about using Schottky diodes? They introduce 0.2 V instead of 0.9<br />Agostinohttps://www.blogger.com/profile/02438842969802009143noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-87758113384694672072017-12-13T01:17:04.311-08:002017-12-13T01:17:04.311-08:00What about using Schottky diodes ? They introduce ...What about using Schottky diodes ? They introduce lower voltage fall, typical 0.2 VAgostinohttps://www.blogger.com/profile/02438842969802009143noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-57012384445830500012017-12-12T23:06:34.447-08:002017-12-12T23:06:34.447-08:00Hi, the recovery time of diodes are important?
Bec...Hi, the recovery time of diodes are important?<br />Because of way is used, don't seems critical and shockty or ultrafast diodes are expensiveLucashttps://www.blogger.com/profile/12422362441901555095noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-34760708037934452282017-11-02T07:50:51.014-07:002017-11-02T07:50:51.014-07:00Can I use 1N4004 to 1N4008 Diodes too?Can I use 1N4004 to 1N4008 Diodes too?Unnamedhttps://www.blogger.com/profile/06079814095580626254noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-72780210111805633352017-10-08T06:32:18.072-07:002017-10-08T06:32:18.072-07:00Este comentario ha sido eliminado por el autor.Anonymoushttps://www.blogger.com/profile/18374738667993812666noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-1515254895657227762017-08-16T05:31:56.986-07:002017-08-16T05:31:56.986-07:00Amazing write I will definitely try this solution ...Amazing write I will definitely try this solution . Does this also work with noisy Allegros A4988 drivers ?akmonhttps://www.blogger.com/profile/14976454929033856914noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-34931435403561863932017-07-20T04:44:13.979-07:002017-07-20T04:44:13.979-07:00Just a note - if you are soldering diodes at home,...Just a note - if you are soldering diodes at home, it is easier to use bridge rectifier(https://en.wikipedia.org/wiki/Diode_bridge), connect input/output to AC terminals (~ ~) and short DC terminals (+ -) together. A lot easier soldering, 2 packages instead of 8 per motor.<br /><br />You can even use single diode between + - to increase voltage further, but that increasing voltage did not work well for me). ledvinaphttps://www.blogger.com/profile/15678963252768297866noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-88949351448393910532017-07-11T00:55:54.312-07:002017-07-11T00:55:54.312-07:00PERFECTPERFECTUnknownhttps://www.blogger.com/profile/14315643383589086500noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-74634699424887102332017-04-12T20:27:10.220-07:002017-04-12T20:27:10.220-07:00got an x3 pro 8 motor controller with 8825 drivers...got an x3 pro 8 motor controller with 8825 drivers, so I am bookmarking this for later, really hope it helps or I dont have a problem with my 425oz in motors I got for the build The_Architecthttps://www.blogger.com/profile/11879091554184224623noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-81328922658165564252016-03-13T21:12:11.071-07:002016-03-13T21:12:11.071-07:00Hi there, I just stumbled upon this in my search f...Hi there, I just stumbled upon this in my search for fixing my stuttering motors, can you take pictures of your diode wiring? im trying to figure out which color/letter i'm supposed to be splicing into(1a/b/2a/b) Can you also show the diode/recommend a diode to use? Thank youSpiderTech500https://www.blogger.com/profile/06173523401740829403noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-10771564375616761462016-02-26T02:33:45.360-08:002016-02-26T02:33:45.360-08:00Can this problem have this effect?
https://drive.g...Can this problem have this effect?<br />https://drive.google.com/file/d/0B_jwSVrnQA08cXdCckNuSGpzUmc/view?usp=sharing<br />https://drive.google.com/file/d/0B_jwSVrnQA08T29EZFgwN0ExQ1k/view?usp=sharing<br />https://drive.google.com/file/d/0B_jwSVrnQA08NTctb245UHZrWXM/view?usp=sharing3dmakerhttps://www.blogger.com/profile/13222518336041834979noreply@blogger.comtag:blogger.com,1999:blog-4568680577295222114.post-19131633639731163322016-01-05T23:15:40.600-08:002016-01-05T23:15:40.600-08:00Thank you.
I have so far written a brief summary t...Thank you.<br />I have so far written a brief summary there and linked here. I will write up a bit more there. There was a user there that had an odd pattern in their perimeter on one side - caused by this. Two others I think are also having this issue currently. (I had this issue myself with a Rumba that had these drivers before I got a smoothie). Thanks again for your research. It will help a lot of folks.Anonymousnoreply@blogger.com