Pete Lewis Posted February 13, 2021 Author Report Share Posted February 13, 2021 measuring string lines to 0.5 mm is pretty good I'll stick to some wickes planks ha you need to swap some shims to get the rear parallel with the centre line another trick just place a long timber 6ft against the rear wheels and sight the alignment to the cill does show easy which way the alignment needs to sit . Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted February 20, 2021 Report Share Posted February 20, 2021 The NASA scientists who have just landed the Perseverance Rover on Mars have just realised they didn't pack any planks with which to adjust the extreme toe-in it seems to suffer from.... 4 Link to comment Share on other sites More sharing options...
Chris A Posted February 20, 2021 Report Share Posted February 20, 2021 This is NASA we're talking about they wouldn't use planks they would have spent millions to design a set of straight edges that were light and met their strict specifications. They'd have gone to Walmart. I checked mine today using the roof bars for the Yeti. Very professional looking.😁 The results have been passed to the number crunching department for analysis. Well, l'll look at them properly tomorrow 🤔 Link to comment Share on other sites More sharing options...
PeteH Posted February 21, 2021 Report Share Posted February 21, 2021 22 hours ago, Chris A said: They'd have gone to Walmart. The "planks" in most Walmart, are of the "thick as two short", variety often still in the "jim-jams", OR hugely obese wearing bright yellow tights.! Pete Link to comment Share on other sites More sharing options...
Badwolf Posted March 6, 2021 Report Share Posted March 6, 2021 Didn't NASA crash a probe years back because it was originally programmed in imperial measurements but they sent the course corrections in metric (or something like that) Link to comment Share on other sites More sharing options...
Pete Lewis Posted March 6, 2021 Author Report Share Posted March 6, 2021 maybe having Rover in its name had an effect ??? Pete 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted March 6, 2021 Author Report Share Posted March 6, 2021 remind me of truck production on line the 8x4 they had lumps of iron and chalk marks all set up by a guy on whacky bacy and one eye it never worked well to check it out we had a all singing optical unit , by the time you had it set up a tape and some dexion proved fool proof in minutes Pete Link to comment Share on other sites More sharing options...
Chris A Posted March 6, 2021 Report Share Posted March 6, 2021 Low tech wins over high tech in my book every time Link to comment Share on other sites More sharing options...
poppyman Posted March 6, 2021 Report Share Posted March 6, 2021 On 21/02/2021 at 17:52, PeteH said: The "planks" in most Walmart, are of the "thick as two short", variety often still in the "jim-jams", OR hugely obese wearing bright yellow tights.! Pete They are also known as "Walmartians" ..... Tony. 1 Link to comment Share on other sites More sharing options...
Neil Clark Posted June 8, 2022 Report Share Posted June 8, 2022 On 06/03/2021 at 13:09, Badwolf said: Didn't NASA crash a probe years back because it was originally programmed in imperial measurements but they sent the course corrections in metric (or something like that) Indeed. About the same time, after years of trying to get our US plants to build equipment for Europe in Metric and a disastrous cost crisis when they even ordered Metric steel specially from Europe, by air, when all we wanted was Metric nuts and bolts etc. But having got the change to metric nuts and bolts done all went quiet until Europe changed the safety criteria for production machinery. "No problem", said our heroes, "we can do that." Nine months later I fly over to see the first production batch, which met the EU spec. Just as a joke I said "Safety and Metric! Cool!". Long faces - "Do you mean you wanted us to stick with metric nuts and bolts again for Europe and Asia?" Inevitably it got a model suffix "ML" for Mars Lander. Link to comment Share on other sites More sharing options...
DVD3500 Posted June 21, 2022 Report Share Posted June 21, 2022 On 20/02/2021 at 19:59, Chris A said: This is NASA we're talking about they wouldn't use planks they would have spent millions to design a set of straight edges that were light and met their strict specifications. They'd have gone to Walmart. I checked mine today using the roof bars for the Yeti. Very professional looking.😁 The results have been passed to the number crunching department for analysis. Well, l'll look at them properly tomorrow 🤔 Someone claimed that was why the Hubble telescope was fuzzy... the mirror was ground by a metric company but the lens was done in Imperial (maybe the other way round). That's why they were able to fix it using software as the error could be corrected mathematically... Again.. I can't find proof but since when were facts ever necessary when make decisions about multi-million dollar projects, trade unions or elections in general? 😄 Link to comment Share on other sites More sharing options...
PeteH Posted June 21, 2022 Report Share Posted June 21, 2022 9 minutes ago, DVD3500 said: Someone claimed that was why the Hubble telescope was fuzzy... the mirror was ground by a metric company but the lens was done in Imperial (maybe the other way round). That's why they were able to fix it using software as the error could be corrected mathematically... Again.. I can't find proof but since when were facts ever necessary when make decisions about multi-million dollar projects, trade unions or elections in general? 😄 And I always thought, they sent a guy up in a space suit and a tin of G5, to polish the defect out?. 😁 Pete 1 Link to comment Share on other sites More sharing options...
Chris A Posted June 21, 2022 Report Share Posted June 21, 2022 34 minutes ago, DVD3500 said: Again.. I can't find proof but since when were facts ever necessary when make decisions about multi-million dollar projects, trade unions or elections in general? Quite. When someone starts to so "the fact of the matter is...' they are about to tell a whopper! Link to comment Share on other sites More sharing options...
NonMember Posted June 21, 2022 Report Share Posted June 21, 2022 37 minutes ago, DVD3500 said: Someone claimed that was why the Hubble telescope was fuzzy. Complete nonsense. The problem was an out of calibration machine that the operators hadn't checked. And when the QA was done, the readings were too far out to be believable so that machine got ignored. Link to comment Share on other sites More sharing options...
Badwolf Posted June 21, 2022 Report Share Posted June 21, 2022 Yanks, don't you just love em. Think someone tried to use the same 'logic' with their elections the other year. 1 Link to comment Share on other sites More sharing options...
DVD3500 Posted June 21, 2022 Report Share Posted June 21, 2022 1 hour ago, NonMember said: Complete nonsense. The problem was an out of calibration machine that the operators hadn't checked. And when the QA was done, the readings were too far out to be believable so that machine got ignored. See! If you want to know the RIGHT answer simply state the WRONG one! Correction comes faster than advice sometimes! 😄 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now