tag:blogger.com,1999:blog-5837660608809488753.post35033043920878998..comments2024-03-28T20:53:49.167-04:00Comments on The Adventures of Roberta X: Arrgh; or, Made Of FailRoberta Xhttp://www.blogger.com/profile/09956807794520627885noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-5837660608809488753.post-5372813737796922442010-07-01T09:51:05.374-04:002010-07-01T09:51:05.374-04:00Inquiring minds want to know - does the dololly pl...Inquiring minds want to know - does the dololly pling the inghams?Ian Argenthttps://www.blogger.com/profile/03704336044732061128noreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-9567436579892711722010-06-18T19:48:32.190-04:002010-06-18T19:48:32.190-04:00Stranger: yeah, we figured that out this afternoon...Stranger: yeah, we figured that out this afternoon, after I had the thing working. BUT there are limits to it, as the actual pot gear is tiny and hidden.<br /><br />Old Grouch, Crucis: pretty new stuff, actually, and it's standard for some segments of the industry. It cannot be replaced with a fixed resistor, as it tells the controller the rotation position of a particular, important, variable dololly (through a little reduction gear). One must find the limits and tell the controller, "Never go lower than <i>n</i> or higher than <i>m</i> and if some tells you to, when you get there, stop and yell for help." But <i>n</i> and <i>m</i> are numbers we don't know 'til we get to 'em. If they are close to the physical limits of the pot and one happens to got a few degrees too far, cruncho!Roberta Xhttps://www.blogger.com/profile/09956807794520627885noreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-91261963851068961502010-06-18T16:51:04.415-04:002010-06-18T16:51:04.415-04:00Hope you feel better soon, Roberta!Hope you feel better soon, Roberta!Josephnoreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-65231428336718932092010-06-18T16:14:13.912-04:002010-06-18T16:14:13.912-04:00Or, perhaps, once the pot is set, measure across i...Or, perhaps, once the pot is set, measure across it and replace it with a fixed value. I did that more than once when pots seemed to be getting tweaked by those "who knew not" or by vibration.Crucishttps://www.blogger.com/profile/15441911110953212619noreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-76359814721208540002010-06-18T14:47:50.464-04:002010-06-18T14:47:50.464-04:00Mrs. Drang has had some success fighting migraines...Mrs. Drang has had some success fighting migraines with a beer. Just one sip.<br /><br />Granted, contra-indicated if you have to go to work afterwards...Dranghttps://www.blogger.com/profile/08082177597135236652noreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-86086411819396290912010-06-18T12:13:26.004-04:002010-06-18T12:13:26.004-04:00Analog servo control with a multiturn pot for a po...Analog servo control with a multiturn pot for a position sensor? And no end stop? Arrgh, indeed. How old is that gear?<br /><br />Here's <a href="http://www.winzurf.co.nz/Single_Track_Grey_Code_Patent/Single_track_Grey_code_encoder_patent.pdf" rel="nofollow">a neat optical/digital one</a>: 30 sensors get you a 2deg resolution, output is a minimum-change code.Old Grouchhttp://oldgrouch.mee.nunoreply@blogger.comtag:blogger.com,1999:blog-5837660608809488753.post-79800317511031043532010-06-18T11:00:34.554-04:002010-06-18T11:00:34.554-04:00That's why my trouble kit contains a CCTV came...That's why my trouble kit contains a CCTV camera and a 250 foot cable. Someone else' sharp eyes are no substitute for my ancient and much abused peepers. It goes in the boxes with a lot of other seldom used but hair saving pieces of equipment. Like the firemans axe. You never know when you need access - fast. <br /><br />StrangerStrangerhttp://extranosalley.comnoreply@blogger.com