tag:blogger.com,1999:blog-4429789698339059066.post6452804809794190708..comments2024-02-27T06:59:55.973-08:00Comments on Yuriy's Toys: Three Ways to Improve iGaging DRO Scales ReliabilityYuriyhttp://www.blogger.com/profile/11394499166280606198noreply@blogger.comBlogger39125tag:blogger.com,1999:blog-4429789698339059066.post-34268883769551577132020-09-20T10:49:05.485-07:002020-09-20T10:49:05.485-07:00VFD noise is usually picked up by the wires, not t...VFD noise is usually picked up by the wires, not the board, so a shielded box won't do much. I would start with making sure the VFD is properly grounded and the wires to the motor are properly shielded. If you have a brand-name VFD, the manual should have grounding instructions. If that doesn't help, mounting the scales on plastic blocks, so they are isolated fro the frame of the machine is the next logical step. Also, as an experiment, try powering the board from a USB power bank or just three AA batteries to eliminate the possibility that there are power supply issues.<br />Pre-made boards usually do pretty well with VFDs.<br />Regards<br />YuriyYuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-71117092052919550662020-09-20T09:23:33.104-07:002020-09-20T09:23:33.104-07:00I have a VFD on my lathe and it seems to be causin...I have a VFD on my lathe and it seems to be causing issues with the prebuilt igaging board. The scales had previously worked without issues using the stock readouts, but now when the VFD is running the numbers on the Touch-DRO app go all over the place. Should I build a shielded box for the board? Is there a way to attach an antenna for the Bluetooth signal to leave the shielded box? <br /><br />ThanksAnonymoushttps://www.blogger.com/profile/07928663306131280075noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-37670189301415716852019-08-30T15:35:12.134-07:002019-08-30T15:35:12.134-07:00There are 6 mounting holes in the back of the read...There are 6 mounting holes in the back of the reader - does anyone know the size & thread pitch of those screws? I need longer screws to mount to my planer. I have 2 reclaimed from my planer that fit, but I don't know the size. The phillips head on the screws are rather worn.Anonymoushttps://www.blogger.com/profile/05002835803095828393noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-15833394585822578962017-12-30T09:23:22.408-08:002017-12-30T09:23:22.408-08:00Yes I am using one of your built boards, thank you...Yes I am using one of your built boards, thank you.<br />Great product, looking forward to getting things setup and using it.<br />Thanks again.payner47https://www.blogger.com/profile/12608406163117785707noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-38069161043394892772017-12-29T10:27:44.257-08:002017-12-29T10:27:44.257-08:00If you are using one of my boards you should be go...If you are using one of my boards you should be good. Otherwise, if you build one from scratch, add some larg-ish 'lytic caps to it to smooth out any noise/harmonics.Yuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-27212486234704215312017-12-29T09:49:23.230-08:002017-12-29T09:49:23.230-08:00I have a quick question about power supply for the...I have a quick question about power supply for the board. I have a computer power supply for other items on my mill , is this usable for the control board . The output power goes through a transformer so I'm thinking the output is isolated from the AC ground , is my thinking correct?payner47https://www.blogger.com/profile/12608406163117785707noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-19901594824780770472017-11-05T12:14:44.881-08:002017-11-05T12:14:44.881-08:00I guess always subject to change, but try searchin...I guess always subject to change, but try searching ebay for "CablesOnline USB Micro-B Male to USB Micro-B Male Cable"Suburbanhttps://www.blogger.com/profile/17968005143620802878noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-84684226206037854752016-12-09T11:48:21.429-08:002016-12-09T11:48:21.429-08:00There are many different reasons for scale "m...There are many different reasons for scale "misbehavior". If the scale resets when you turn on your machine, ferrite beads won't do a thing (the cause is a spike on the line that reverses the polarity of scales supply. I.e. frame gets more positive that 3.3V Vcc line).<br />If you are seeing random intermittent position misreads and the scale goes back to the right value, the cause is noise on the data or clock line. If the noise is at the right frequency and the the ferrite is the right size you might see a difference, but it's kind of like throwing stuff at the wall and seeing what sticks: ferrite bead on the cable creates a weak single-turn inductor. The inductance depends on the size/type of the bead...<br />Hope this helps<br />YuriyYuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-57006476429225501662016-12-09T10:54:09.668-08:002016-12-09T10:54:09.668-08:00I haven't seen anyone comment on the positives...I haven't seen anyone comment on the positives of ferrite on the usb cables?techsolnoreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-17674925265307124832016-05-06T16:40:04.799-07:002016-05-06T16:40:04.799-07:00Yuriy
You mentioned heavier cables, what gauge wou...Yuriy<br />You mentioned heavier cables, what gauge would that be.??Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-51853132742731351832016-05-06T12:27:00.973-07:002016-05-06T12:27:00.973-07:00It could go either way. The scales come with whate...It could go either way. The scales come with whatever cables "fell of the truck" that day.Yuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-22119862946872337692016-05-06T10:59:32.639-07:002016-05-06T10:59:32.639-07:00Yuriy, THANKS for all the INPUT.
As far as the new...Yuriy, THANKS for all the INPUT.<br />As far as the newer MICRO B cables, are you aware if there in fact shielded?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-77804622462529823272016-05-05T17:13:13.259-07:002016-05-05T17:13:13.259-07:00There are three versions (so far). Two have Mini-B...There are three versions (so far). Two have Mini-B connectors, and the newest one comes with Micro-B.Yuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-3418369409488167832016-05-05T16:30:07.810-07:002016-05-05T16:30:07.810-07:00I have the Igaging ABSALUTE, I have orderd several...I have the Igaging ABSALUTE, I have orderd several dif. cables and adapters just to cover all the bases, all in MINI B. I got one of the adapters today and it didn't fit the LED. So I'm guessing The ABSALUTE version takes the MICRO B.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-62070068527105689522016-02-28T13:19:38.703-08:002016-02-28T13:19:38.703-08:00Hi Yuriy
First: thousand thanks for the great work...Hi Yuriy<br />First: thousand thanks for the great work you are doing.<br />But of course I also have some problems and questions regarding Adapter Board + MiniB USB Breakout Boards.<br />After a little trail and error I got the data/signal inconsistent rectified (the breakout board didn’t connect to the controller board 1 to 1).<br />What worries me now is why the board have so many problems in decoding the signals from the scales especially because the standard ODR is rock steady. Can you think of building a signal shaper or a “Smith trigger” or alike. The original one-scale display must contain some circuit which make the decoding very steady.<br />Thanks for your commitment ;-)<br />Peer – Denmark<br />P.S. I really need a map over your site…<br />Anonymoushttps://www.blogger.com/profile/08969127378831068197noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-60643831332522491922015-09-19T21:09:45.795-07:002015-09-19T21:09:45.795-07:00I have an interesting reliability problem, which I...I have an interesting reliability problem, which I am sure is not related to the scales themselves. Here is my situation;<br />> I haven't isolated the Igaging scales from the mill (yet)<br />> The mill is a BF20 with the power switch on the back of the control panel<br />> Currently everything is still on a breadboard<br />> I am powering the Arduino through an Adafruit Boost 500C board with a Lipo battery as backup. This effectively works as a UPS to stop memory loss in case I switch off the wrong thing.<br />I have used both the v3 sketch and the Tach v5 sketch made by Ryszard Malinowski, both have exactly the same symptoms.<br />> I have a common capacitor fitted across the 5V and Ground lines running to the scales<br /><br />Symptoms<br />About 1 in 15 times, when switching the power to the mill on or off, or inserting removing the plug at the wall, the X and W scale values scramble to some random figure and become locked, by which I mean nothing changes when moving the axis. The only way to recover them is to turn off the power to the scales which of course loses position as well.<br />Th interesting part is that it is only the X and W axes that scramble and lock out. The Y and Z values are 100% rock steady. No idea why this should be happening.<br /><br />Diagnosis<br />If I disconnect the mains power supply and run the Arduino on the battery backup through the Adafruit boost supply, the problem never occurs, therefore it has got to be due to an incoming voltage spike. <br />The problems seems to within the Arduino code, not the scales themselves.<br /><br />I guess I will need to find a way to improve incoming power which is currently a 5V USB phone charger. Tried two different models with the same results.<br /><br />This is just to help anyone out having the same problem, but any suggestions would be gratefully received.<br /><br />Paul Atkin - Japan<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-52252654737023704432015-09-09T19:30:11.416-07:002015-09-09T19:30:11.416-07:00Newer igaging dro are using shielded usb cable. I...Newer igaging dro are using shielded usb cable. I initially brought 3 for my mini mill. These all had unshielded usb cables. The cables are slim at around 0.11 inches in diameter. Months later I brought 2 more for my mini lathe. These cables were noticable thicker at around 0.13 inches. I've verified by slicing open the cables.<br /><br />狂猪https://www.blogger.com/profile/16599529315620633684noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-60932559370198783892015-08-31T19:12:18.604-07:002015-08-31T19:12:18.604-07:00Hi Yuriy,
What about using ferrite beads too miti...Hi Yuriy,<br /><br />What about using ferrite beads too mitigate noise in the cables? <br />Let me know your thoughts.<br /><br />Thanks for the brilliant project.Anonymoushttps://www.blogger.com/profile/00645412720691696555noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-8099037445589106072015-07-28T19:02:57.536-07:002015-07-28T19:02:57.536-07:00separating the wires appears to fix the cross tal...separating the wires appears to fix the cross talk.<br /><br />found that the app doesn't always remember "relative zero" when disconnected for a while. also, MSP sometimes loses track where the scales are. the scales hold their reading on power cycle but the MSP starts fresh and may introduce random data which makes no sense. unplugging the scale briefly and returning it sometimes brings it back.Anonymoushttps://www.blogger.com/profile/00452451960051229549noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-25036961016402412332015-07-25T15:21:01.428-07:002015-07-25T15:21:01.428-07:00OK, that appeared to fix the .2 inch jump... Next ...OK, that appeared to fix the .2 inch jump... Next issue. it appears that the scales interfere with each other. if one or the other is plugged in to the MSP430, they are rock solid. when you plug more than one in, the flicker starts. it would appear that the data from one unit interferes with the other scale. need to spread out the wiring inside the enclosure to isolate the channels better. Stay tuned.Anonymoushttps://www.blogger.com/profile/00452451960051229549noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-89559783449164277612015-07-23T16:08:03.952-07:002015-07-23T16:08:03.952-07:00i just took mine apart because i have the infamous...i just took mine apart because i have the infamous .2 inch jump. the circuit boards are mounted crooked and are not parallel to the scale. i adjusted to parallel and reassembled. i will post results.Anonymoushttps://www.blogger.com/profile/00452451960051229549noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-22714578093709017912015-07-02T17:54:20.838-07:002015-07-02T17:54:20.838-07:00In theory, you should connect it to one side. If y...In theory, you should connect it to one side. If you're up for some reading, read this paper:<br />http://www.physics.utah.edu/~jui/3620-6620/Files/ott.pdf<br /><br />Thank you<br />YuriyYuriyhttps://www.blogger.com/profile/11394499166280606198noreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-20538491976288598542015-07-02T11:53:26.400-07:002015-07-02T11:53:26.400-07:00Hi Yuriy!
First a huge THANK YOU for all your har...Hi Yuriy!<br /><br />First a huge THANK YOU for all your hard work, programming the app and publishing all the attendant information here. I have interfaced my iGagings with my self-made control circuit using the default USB cables (better cables are already in, just need to find the time to implement them...).<br /><br />One question: should the shield on the controller side be connected to GND or not? I have left the connection separted so far since I found conflicting information about this on the web. Do you have experience there?<br /><br />Thanks for sharing any thoughts on this!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-3957800517459079502014-05-20T23:52:25.511-07:002014-05-20T23:52:25.511-07:00The scales aren't even on the mill yet. :)
Ho...The scales aren't even on the mill yet. :)<br /><br />However, I do seem to have solved the issue. As a test, I connected the shield braid to the shell on one of the connectors I'm using by clamping it under the cable clamp of it's metal outer case. I then ran a ground wire from the back of the socket to the DC jack. <br /><br />Connected the DRO, moved the scale to get a reading, and then flipped the power switch on the mill. Several times, to make sure it wasn't a fluke. Reading stayed solid.<br /><br />So I did the same with the other leads, and then connected all the socket shells together with a thin aluminum plate that sits behind all the socket's mounting nuts, ran a cable from it to the DC Jack GND and tried all three of them. Rock solid readings, no matter how often I turn the motor on or off. <br /><br />So - I guess it doesn't matter (regardless of what I've read about shielding) that it's connected at both ends.<br /><br />Thanks for your help<br /><br />JasonJason Cundallhttp://www.greatoldone.co.uknoreply@blogger.comtag:blogger.com,1999:blog-4429789698339059066.post-37615608771196453162014-05-20T10:06:42.377-07:002014-05-20T10:06:42.377-07:00Have you electrically isolated all the scales from...Have you electrically isolated all the scales from the mill?<br /><br />I'd need to double check, but on mine the USB's body was not connected to the ground pin, so I connected all the bodies together and then ran them to ground on the Arduino.<br /><br />You should also check that the power supply you're using is isolating you from the AC.Zoltanhttps://www.blogger.com/profile/03688633386727439885noreply@blogger.com