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  • #188634
    JasonB
    Moderator
      @jasonb

      If you can drag yourself away from the Snooker this may be worth a watch, glass blowing now then forging a steel knife at 9.30.

      Camera shots suggest it may be a bit "arty"

      #23855
      JasonB
      Moderator
        @jasonb
        #188647
        Craig Davis
        Participant
          @craigdavis72786

          Arty, but good. Thanks for the suggestion. Now back to the snooker.

          #188650
          Michael Gilligan
          Participant
            @michaelgilligan61133

            Very pleasing … 'though I was surprised by the use of the linisher on the blade.

            … Fond memories of watching film at Sheffield Museum, where the old boys did all their grinding on a 4' diameter wheel, whizzing round between their legs. surprise

            MichaelG.

            #188653
            Rainbows
            Participant
              @rainbows

              I think all the extra traffic that guy got crashed his website. oh dear

              #188673
              jason udall
              Participant
                @jasonudall57142

                Yes. But wasn’t it nice for the film to allowed to speak for itself.

                No need to explain ,at a level suitable for public , stuff the public didn’t want to know anyway.
                ( with a mandate to educate , inform and entertain..sometimes the beeb has the guts to address these ONE at a time rather than miss all at once).

                Must say I missed the temper process in the metal one (come to think about it, seem to have skipped the temper/ anneal process in the glass one also).
                .
                Nice though

                #188683
                JasonB
                Moderator
                  @jasonb

                  Yes I think the silence was worth it certainly better than some clown of a presenter trying to make it "entertaining"

                  I liked the way that the jar of yellow liquid brought out the laminations of the blade, anyone know what it might have been? Also thought he would have been working the sides of the blade more on large waterstones rather than sheet abrasive on a block.

                  J

                  #188696
                  DMB
                  Participant
                    @dmb

                    Yellow liquid = Nitric Acid?

                    Seen this used to reveal faulty weld penetration.

                    John

                    #188699
                    Russ B
                    Participant
                      @russb

                      I really enjoyed these, I watched the knife twice!

                      Interesting that he welded plates together rather than hammering and folding a single piece.

                      What was the white powder he sprinkled on the plates before he started to hammer them out? (It looked like washing powder cheeky)

                       

                       

                      I look forward to the 3rd and final instalment on Wednesday which follows the hand crafting of a Windsor Chair.

                      Edited By Russ B on 05/05/2015 10:52:06

                      #188701
                      Jon Gibbs
                      Participant
                        @jongibbs59756
                        Posted by DMB on 05/05/2015 10:43:30:

                        Yellow liquid = Nitric Acid?

                        +1 – almost certainly. Will etch/dissolve almost any non-precious metal.

                        Jon

                        Edited By Jon Gibbs on 05/05/2015 11:08:55

                        #188708
                        Michael Gilligan
                        Participant
                          @michaelgilligan61133
                          Posted by Russ B on 05/05/2015 10:51:30:

                          What was the white powder he sprinkled on the plates before he started to hammer them out?

                          .

                          Russ,

                          I think it was probably bonemeal … a good source of carbon for 'improving' what appeared to be mild steel.

                          MichaelG.

                          #188711
                          martin perman 1
                          Participant
                            @martinperman1

                            I enjoyed both but particularly the knife, I couldn't get my head around why he welded all those plates together until he put the blade into the acid and you could see the folds and twisting displayed in the metal, nicely made piece of film.

                            Martin P

                            #188712
                            Russ B
                            Participant
                              @russb
                              Posted by Michael Gilligan on 05/05/2015 11:53:24:

                              Posted by Russ B on 05/05/2015 10:51:30:

                              What was the white powder he sprinkled on the plates before he started to hammer them out?

                              .

                              Russ,

                              I think it was probably bonemeal … a good source of carbon for 'improving' what appeared to be mild steel.

                              MichaelG.

                              Right I see thanks! Make more sense than a bit of Persil's finest biological laugh

                              Do you think he did it just the once, or sprinkled a bit on periodically, it didn't seem like much?

                              #188719
                              Michael Gilligan
                              Participant
                                @michaelgilligan61133
                                Posted by Russ B on 05/05/2015 12:27:33:

                                Do you think he did it just the once, or sprinkled a bit on periodically, it didn't seem like much?

                                .

                                I would think this was repeated quite a few times, because the idea would be to increase the carbon content throughout [not just to case-harden] … going by the timings; this was a long job, heavily edited.

                                MichaelG.

                                #188720
                                David Carpenter 4
                                Participant
                                  @davidcarpenter4

                                  Before someone removes this post, a quick thanks for pointing out these programmes, Jason. Excellent!

                                  #188724
                                  JasonB
                                  Moderator
                                    @jasonb

                                    Did look a bit flaky to me and the bonemeal I have seen is usually granular.

                                    Anyway bit about the steel he uses here which does not seem to need any carbon added and it seems the high nickle content helps with teh acid treatment to enhance the layers

                                    #188726
                                    Michael Gilligan
                                    Participant
                                      @michaelgilligan61133
                                      Posted by JasonB on 05/05/2015 13:31:47:

                                      Did look a bit flaky to me and the bonemeal I have seen is usually granular.

                                      Anyway bit about the steel he uses here which does not seem to need any carbon added and it seems the high nickle content helps with teh acid treatment to enhance the layers

                                      .

                                      Thanks for that, Jason … always happy to be wrong!

                                      Looking at your link; that seems to suggest that he may be sandwiching two grades of steel.

                                      Must watch it again!

                                      MichaelG.

                                      .

                                      Edit: [quote from Jason's link] "Knifemakers who make damascus are familiar with 15N20. It is made by Uddeholm and is marketed for use as bandsaw blades in sawmills. In some damascus it is the shiny layers. The nickel in 15N20 resists the acid etch and stays shiny."

                                      Edited By Michael Gilligan on 05/05/2015 13:41:42

                                      #188727
                                      Jon Gibbs
                                      Participant
                                        @jongibbs59756

                                        Having watched them both I can't help thinking that it was a bit of a wasted opportunity although I am grateful for something interesting on the box for a change.

                                        Subtitling could have been used to provide a bit of a commentary without spoiling the "arty shots" which were perhaps a little too self indulgent IMHO. Was it really necessary or helpful to spend so much air-time showing falling sparks during the grinding and rising sparks from the hearth during the forge scenes for example?

                                        Dare I say that the knife blade was really beautiful but what a bloody awful handle!

                                        …but it's certainly infinitely better than mindless lack-of-talent shows.

                                        Jon

                                        #188728
                                        JasonB
                                        Moderator
                                          @jasonb

                                          Michael, I have seen knives and swords done with a sandwich with a high carbon filling and milder steel bread and thought that was what he was doing until he started twisting which would mean the HC steel was not a thin layer at the knifes cutting edge.

                                          Owen Bush's website, who is going for a lesson?

                                           

                                          Jon, just be lucky I did not suggest members watched the other program in the group – an hour of birdsong

                                           

                                          Edited By JasonB on 05/05/2015 13:50:28

                                          #188729
                                          OuBallie
                                          Participant
                                            @ouballie

                                            Jason,

                                            Thank you for that link!

                                            An hours worth of beautiful relaxing natural 'music'.

                                            Geoff – What more could I wish for?

                                            #188731
                                            Russ B
                                            Participant
                                              @russb
                                              Posted by Jon Gibbs on 05/05/2015 13:38:59:

                                              Subtitling could have been used to provide a bit of a commentary…….

                                              Dare I say that the knife blade was really beautiful but what a bloody awful handle!

                                              SNAP!

                                              I had exactly the same thoughts, the 2nd time I watched it I even turned subtitles on hoping for some descriptions.

                                              I really enjoyed the production, and I think it will inspire many.

                                              I think it brings the blood sweat and tears to light that is lost on many of today's youth – if it's not 99p from Hong Kong they think they're being ripped off, and anything that requires the use of their hands or muscles is an unnecessarily laborious task, it's as if the 1st world is becoming* processors at the heart of one big machine driving the 2nd/3rd world. Perhaps the 4th world are the lucky ones if your familiar with Chief George Manuel's description, but then the grass is always greener.

                                               

                                              "*is becoming" – perhaps more "has become"

                                              Edited By Russ B on 05/05/2015 14:16:06

                                              #188732
                                              JasonB
                                              Moderator
                                                @jasonb

                                                Geoff, maybe this will also be of interest if you have a couple of hours to spare tonight. Maybe they could do a speeded up version like that old B&W train jurney.

                                                Watch out for more titles in the series- traffic lights changing and paint dryingsmile p

                                                #188733
                                                Vic
                                                Participant
                                                  @vic

                                                  Just seen the knife one. Good but a bit too dark and "arty" for me. I would have preferred to see what was going on a bit better. I expect the white stuff used is granulated Borax, it helps keep the joint clean and aids fire welding. I've got a 1 kg tin of it somewhere specially packaged for blacksmiths.

                                                  #188734
                                                  Jon Gibbs
                                                  Participant
                                                    @jongibbs59756
                                                    Posted by JasonB on 05/05/2015 13:48:09:

                                                    Owen Bush's website, who is going for a lesson?

                                                    Thanks Jason. He has some knives on his website with bent steel handles which are much nicer looking and possibly more practical IMHO

                                                    …he's not really a woodworker I guess.

                                                    Jon

                                                    Edited By Jon Gibbs on 05/05/2015 14:31:52

                                                    #188737
                                                    Michael Gilligan
                                                    Participant
                                                      @michaelgilligan61133
                                                      Posted by JasonB on 05/05/2015 14:15:10:
                                                      Watch out for more titles in the series- traffic lights changing and paint dryingsmile p

                                                      .

                                                      From an original idea by Andy Warhol ?

                                                      MichaelG.

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