What did you do Today 2018

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What did you do Today 2018

Home Forums The Tea Room What did you do Today 2018

Viewing 25 posts - 1 through 25 (of 1,832 total)
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  • #334714
    JasonB
    Moderator
      @jasonb

      Report what you have been upto here ( preferably engineering related) Actual workshop progress can be reported here

      Previous 2017 posts can be found here

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      #35082
      JasonB
      Moderator
        @jasonb
        #334715
        Michael Horner
        Participant
          @michaelhorner54327
          #334724
          Danny M2Z
          Participant
            @dannym2z

            Kids gave me a dji mavic pro multirotor for Xmas. It took all yesterday and today to discover how to activate it without logging in to dji China and bypass all the Chinese spyware that logs all flights and reports back home about every flight.

            Wireshark reports that it tried to connect to 27 servers in China. Why would it want do this to a country that claim that they are our friends?

            It's a nice toy but pretty sneaky so be careful if you fly one!

            * Danny M *

            #334771
            Neil Wyatt
            Moderator
              @neilwyatt

              It's probably because the PRC want to know where people in China are flying them, not what you are doing.

              My cheap phone came with thr Chinese filtered version of Google pre-loaded and Weibo etc…

              Expect UK ones to require flight logging of larger drones in the future…

              Neil

              #334781
              Andy Carruthers
              Participant
                @andycarruthers33275

                Ran a test cut on my Tom Senior after completing wiring in yesterday only to discover my vice is crap, jaw lifts – hardly surprised, can't expect much for £25

                Dismantled what I believe is a bike spoke threading machine to replace the spindle with a standard die holder. I used Tinkercad to mock up the spindle and am 3D printing to check the fit before attempting to turn the spindle for real

                #334787
                Mark Rand
                Participant
                  @markrand96270

                  I've been tidying up the shed and have got to the point that I've got a few things that, to be brutally honest, are consuming more in space than their value in usefulness crying. So I made a little list and decided to start getting stuff ready to list on EBay…

                  First one was an 8" Abwood style milling vice. It'd spent its working life on a Lumsden grinder, so hadn't got any of the war wounds that milling vices normally pick up, also hadn't got any paint left due to the rather aggressive environment.

                  Decided to clean a light layer of rust off it, get any abrasive grit residues out of it and then list it. Unfortunately, when disassembling it, I discovered that the bronze nut is sheared off the post that held it into the base casting:-

                   

                   

                   

                  Before I cut it up to get useful cast iron stock from some of it and chucking the rest, Does anyone want a 65kg milling vice that needs a new nut making. To quote Badfinger/Paul McCartney:- If you want it, here it is Come and get it. Make your mind up fast.

                  Available free for pickup from Rugby to anyone that needs a large milling vice and is happy to make a new nut for it.

                   

                  PS:- It's too large for a Bridgeport sized mill and it weighs 65kgs.

                  Edited By Mark Rand on 01/01/2018 16:09:08

                  #334841
                  Robin
                  Participant
                    @robin

                    As our American chums would say, "Heads up!". Today i bought a Casio fx-451M calculator NIB from America on that auction site. If you ever had one you will know why this is amazing. Solar powered but there is an internal battery to retain mode selections, you have to know where to make the incision if it goes flat. He has 4 more face 22

                    #334856
                    Danny M2Z
                    Participant
                      @dannym2z
                      Posted by Neil Wyatt on 01/01/2018 14:38:31:

                      It's probably because the PRC want to know where people in China are flying them, not what you are doing.

                      My cheap phone came with thr Chinese filtered version of Google pre-loaded and Weibo etc…

                      Expect UK ones to require flight logging of larger drones in the future…

                      Neil

                      Hi Neil, it is more involved than that. **LINK**

                      If I want to fly in certain places then the equipment must be cyber-clean, it's in the contract.

                      * Danny M *

                      #334861
                      Mike Poole
                      Participant
                        @mikepoole82104
                        Posted by Robin on 01/01/2018 22:55:19:

                        As our American chums would say, "Heads up!". Today i bought a Casio fx-451M calculator NIB from America on that auction site. If you ever had one you will know why this is amazing. Solar powered but there is an internal battery to retain mode selections, you have to know where to make the incision if it goes flat. He has 4 more face 22

                        Still use my second one after some scumbag stole my original, a very useful tool.

                        Mike

                        #334882
                        Brian H
                        Participant
                          @brianh50089

                          Setting up to use my Stevenson endmill grinding fixture for the first time, I discover that the grinder spindle is bent at one end! ( it's a single phase Clarke double ended grinder modified to fit a Union T&C grinder)

                          I may have a go at straightening it, even if it means remachining it and sleeving , after all, what have I got to lose? its scrap as it is.

                          Brian

                          #334887
                          Perko7
                          Participant
                            @perko7

                            Had an hour free before the grand-kids arrived so made up some little brackets to mount the Mk2 side control springs for the pony truck on the loco. These will replace the Mk1 version which was fingers of spring steel strip bearing against the frame of the pony truck. Worked ok for the first few weeks but the constant flexing caused cracks where i had bent them to fit onto some existing mounting holes, so now doing it the 'proper' way using coil springs which i should have done in the first place.frown

                            #334971
                            Neil Wyatt
                            Moderator
                              @neilwyatt
                              Posted by Mark Rand on 01/01/2018 15:57:16:

                              That nut will silver solder nicely and the heat doesn't soften bronze (at least not enough to notice).

                              Neil

                              #334972
                              Neil Wyatt
                              Moderator
                                @neilwyatt
                                Posted by Danny M2Z on 02/01/2018 07:36:13:

                                Posted by Neil Wyatt on 01/01/2018 14:38:31:

                                It's probably because the PRC want to know where people in China are flying them, not what you are doing.

                                My cheap phone came with thr Chinese filtered version of Google pre-loaded and Weibo etc…

                                Expect UK ones to require flight logging of larger drones in the future…

                                Neil

                                Hi Neil, it is more involved than that. **LINK**

                                If I want to fly in certain places then the equipment must be cyber-clean, it's in the contract.

                                * Danny M *

                                The end of the articles seems inconclusive… was it dodgy – or not?

                                Neil

                                #334978
                                DrDave
                                Participant
                                  @drdave

                                  Today’s plan was to spend some quality workshop time roughing out a crankcase. The plan worked this morning, but it has all gone wrong after lunch. I managed one cut in the mill, stopped to check a dimension, and now the spindle motor refuses to do anything.

                                  To be fair, it has been showing signs of distress for some time, with the speed of the DC motor “hunting”, so the escape of some blue smoke was not unexpected. I have a spare controller board, but I would rather not have had to rip out the old wiring to fit a new, different board.

                                  Sigh!

                                  #334982
                                  Neil Wyatt
                                  Moderator
                                    @neilwyatt

                                    DrDave – with the DC motors and controller boards one failure mode is that an over-driven motor overheats and blows a winding. You barely notice. Next time it overheats (a little more easily) it blows another winding, essentially splitting the windings into a long and short set. Depending on the lengths of these the engine runs rough or barely at all especially at low speeds. The strain of running the unhappy, electrically unbalanced motor crocks the control board.

                                    Neil

                                    #334986
                                    DrDave
                                    Participant
                                      @drdave

                                      That’s an interesting point, Neil. I had assumed that, because it is a few decades old, the electronic bits would have gone geriatric, not the motor. This might take longer than I thought…

                                      Dave

                                      #335006
                                      Brian H
                                      Participant
                                        @brianh50089
                                        Posted by Brian Hutchings on 02/01/2018 10:27:46:

                                        Setting up to use my Stevenson endmill grinding fixture for the first time, I discover that the grinder spindle is bent at one end! ( it's a single phase Clarke double ended grinder modified to fit a Union T&C grinder)

                                        Brian

                                        Had the motor apart and double checked the spindle….. it's not bent!

                                        Took the opportunity to clean and check the ballraces, they're fine and have been refilled with grease and refitted.

                                        The cause of the wobbling grindstone was tracked down to a less that perfect spacer that was not parallel on the ends.

                                        Put it all back together and ground my first slotdrill. Need to practice a bit more to grind the cutting edge without missing a bit. Still, quite pleased.

                                        Brian

                                        #335018
                                        Mark Rand
                                        Participant
                                          @markrand96270
                                          Posted by Neil Wyatt on 02/01/2018 18:44:13:

                                          That nut will silver solder nicely and the heat doesn't soften bronze (at least not enough to notice).

                                          Neil

                                          Hmm. Hadn't even thought of that. It's so much work to get rid of things that are cluttering up the shed!

                                          #335020
                                          Mark Rand
                                          Participant
                                            @markrand96270
                                            Posted by Neil Wyatt on 02/01/2018 18:47:19:

                                            Posted by Danny M2Z on 02/01/2018 07:36:13:

                                            Posted by Neil Wyatt on 01/01/2018 14:38:31:

                                            It's probably because the PRC want to know where people in China are flying them, not what you are doing.

                                            My cheap phone came with thr Chinese filtered version of Google pre-loaded and Weibo etc…

                                            Expect UK ones to require flight logging of larger drones in the future…

                                            Neil

                                            Hi Neil, it is more involved than that. **LINK**

                                            If I want to fly in certain places then the equipment must be cyber-clean, it's in the contract.

                                            * Danny M *

                                            The end of the articles seems inconclusive… was it dodgy – or not?

                                            Neil

                                            The (Chinese) manufacturers were doing exactly what (non-Chinese) governments were demanding. Ensuring that no-fly zones were enforced and updated. Fairly small beer compared with the damage that the Stuxnet worm did to Siemens PLC controlled plant at the behest of the US a few years back…

                                            Edited By Mark Rand on 02/01/2018 21:21:31

                                            #335025
                                            Andy Carruthers
                                            Participant
                                              @andycarruthers33275

                                              My 3rd spindle 3D print seens to be the right one to make out of steel, I've modified the original spindle design to incorporate interchangeable heads so I can re-use the tail stock die holder ones and simplified the spindle itself rather than making a straight copy of the original

                                              Well, that's what I think at the moment…

                                              #335070
                                              john carruthers
                                              Participant
                                                @johncarruthers46255

                                                Yesterday I did the first little job of the year, a thrust washer in brass, 77mm ID, 103mm OD, 1.1mm thick to go on the bottom end of a mate's polar axis shaft….
                                                polar shaft assembled.jpg

                                                #335074
                                                Howi
                                                Participant
                                                  @howi

                                                  Was that made by Ivor Biggun by any chance?

                                                  #335076
                                                  Neil Wyatt
                                                  Moderator
                                                    @neilwyatt

                                                    laugh

                                                    #335090
                                                    Robin
                                                    Participant
                                                      @robin
                                                      Posted by Mark Rand on 02/01/2018 21:13:13:

                                                      Hmm. Hadn't even thought of that. It's so much work to get rid of things that are cluttering up the shed!

                                                      You are assuming the rest of the world to be incompetent, and it usually is, but someone with a use for such a monster as this should be fairly well equipped for a bit of soldering.

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