Re: [Emc-users] Fwd: A bit OT: Looking for pinout for a Chinese Scale reader head
On Tue, May 10, 2022 at 10:20 AM gene heskett wrote: > On Tuesday, 10 May 2022 08:49:57 EDT Mark Wendt wrote: > [...] > > Gene, > > > > If you'd seen the really cheesy cable connector that goes into the old > > style Chinese scales, the mini USB connector it a vast improvement. > > The nice thing about the cable into the scales is they rarely get > > disconnected so once in place, there's virtually no wear and tear on > > the connectors. > > > > Mark > > Unfortunately, the same cannot be said about data connectors on consumer > grade cameras even if they do cost in the $400 range. > > That said, if you ever find a cable that plugs a $30 caliper into a usb > port, I wouldn't mind seeing the url for it. I've a short one I'd like to > fix to the barrel of my Sheldon's tailstock. It would make a nice > calibrator for the z axis on my 6040 too. > > Take care & stay well. > > Cheers, Gene Heskett. > It's just a mini USB cable bought at a local computer shop. I don't think they make the old style cables any more with the four sprung strips, and it seems the new Chinese scales come with the minu USB port. Mark ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fwd: A bit OT: Looking for pinout for a Chinese Scale reader head
On Tuesday, 10 May 2022 08:49:57 EDT Mark Wendt wrote: [...] > Gene, > > If you'd seen the really cheesy cable connector that goes into the old > style Chinese scales, the mini USB connector it a vast improvement. > The nice thing about the cable into the scales is they rarely get > disconnected so once in place, there's virtually no wear and tear on > the connectors. > > Mark Unfortunately, the same cannot be said about data connectors on consumer grade cameras even if they do cost in the $400 range. That said, if you ever find a cable that plugs a $30 caliper into a usb port, I wouldn't mind seeing the url for it. I've a short one I'd like to fix to the barrel of my Sheldon's tailstock. It would make a nice calibrator for the z axis on my 6040 too. Take care & stay well. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fwd: A bit OT: Looking for pinout for a Chinese Scale reader head
On Tue, May 10, 2022 at 8:28 AM gene heskett wrote: > > > No worries. The DRO puts out 1.5VDC through the Vpos and Vneg lines. > > I'm not plugging the scale into a PC or anything like that. The scale > > is plugged into the DRO-350. All I'm trying to do is cobble a cable to > > go from the DRO to new scale which has the mini USB connector on it > > rather than the old four strip connector in it. I'm figuring the mini > > USB will probably be a much better connection than the old one could > > ever be. > > > > Mark > > Thats debatable Mark. I have an older Nikon D-100 Coolpix camera with one > of the many variations of the mini-usb socket, and discovered quite early > in its history that If I wanted to get pix out of it with digikam, that > it had to be standing on the face of its lens with the data cable hanging > straight down off the edge of the desktop if I wanted a connection. > > Cheers, Gene Heskett. > Gene, If you'd seen the really cheesy cable connector that goes into the old style Chinese scales, the mini USB connector it a vast improvement. The nice thing about the cable into the scales is they rarely get disconnected so once in place, there's virtually no wear and tear on the connectors. Mark ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fwd: A bit OT: Looking for pinout for a Chinese Scale reader head
On Tuesday, 10 May 2022 04:56:40 EDT Mark wrote: > On 5/9/22 05:38, andy pugh wrote: > > In the application you describe I would rather expect the USB to act > > as a battery replacement. Though USB is 5V and the reader heads use a > > 1.5V battery, so this might be a dangerous assumption. > > > > > > > > The scales can be powered through the data cable. This would be > > useful in many fixed installations. > > > > However, they do not like 5V. I experimented and things went wrong > > (no > > smoke, but all LCD elements turned on) at 2.1V. > > > > So, don't plug the USB into a USB socket without doing some careful > > tests with a current-limited variable power supply first. > > > > This probably isn't relevant to this query, but there are > > 3D-printable > > connector designs: https://www.thingiverse.com/thing:2477494 as an > > example. > > > > In a bit of a coincidence, CTC just spammed me with an email > > informing > > me that they have 50% off digital scales, code DS2022 > > > > https://www.ctctools.biz/digital-scales-dro/ > > No worries. The DRO puts out 1.5VDC through the Vpos and Vneg lines. > I'm not plugging the scale into a PC or anything like that. The scale > is plugged into the DRO-350. All I'm trying to do is cobble a cable to > go from the DRO to new scale which has the mini USB connector on it > rather than the old four strip connector in it. I'm figuring the mini > USB will probably be a much better connection than the old one could > ever be. > > Mark Thats debatable Mark. I have an older Nikon D-100 Coolpix camera with one of the many variations of the mini-usb socket, and discovered quite early in its history that If I wanted to get pix out of it with digikam, that it had to be standing on the face of its lens with the data cable hanging straight down off the edge of the desktop if I wanted a connection. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Fwd: A bit OT: Looking for pinout for a Chinese Scale reader head
On 5/9/22 05:38, andy pugh wrote: In the application you describe I would rather expect the USB to act as a battery replacement. Though USB is 5V and the reader heads use a 1.5V battery, so this might be a dangerous assumption. The scales can be powered through the data cable. This would be useful in many fixed installations. However, they do not like 5V. I experimented and things went wrong (no smoke, but all LCD elements turned on) at 2.1V. So, don't plug the USB into a USB socket without doing some careful tests with a current-limited variable power supply first. This probably isn't relevant to this query, but there are 3D-printable connector designs: https://www.thingiverse.com/thing:2477494 as an example. In a bit of a coincidence, CTC just spammed me with an email informing me that they have 50% off digital scales, code DS2022 https://www.ctctools.biz/digital-scales-dro/ No worries. The DRO puts out 1.5VDC through the Vpos and Vneg lines. I'm not plugging the scale into a PC or anything like that. The scale is plugged into the DRO-350. All I'm trying to do is cobble a cable to go from the DRO to new scale which has the mini USB connector on it rather than the old four strip connector in it. I'm figuring the mini USB will probably be a much better connection than the old one could ever be. Mark ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Fwd: A bit OT: Looking for pinout for a Chinese Scale reader head
In the application you describe I would rather expect the USB to act as a battery replacement. Though USB is 5V and the reader heads use a 1.5V battery, so this might be a dangerous assumption. The scales can be powered through the data cable. This would be useful in many fixed installations. However, they do not like 5V. I experimented and things went wrong (no smoke, but all LCD elements turned on) at 2.1V. So, don't plug the USB into a USB socket without doing some careful tests with a current-limited variable power supply first. This probably isn't relevant to this query, but there are 3D-printable connector designs: https://www.thingiverse.com/thing:2477494 as an example. In a bit of a coincidence, CTC just spammed me with an email informing me that they have 50% off digital scales, code DS2022 https://www.ctctools.biz/digital-scales-dro/ -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
