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  • Gern
    • May 2009
    • 9254

    #286
    So that's 98x2x6 = 1176 + 34 = 1210 parts just for the tracks on a Pz III/IV winter version? Is it just me that finds that ludicrous?

    Comment

    • rtfoe
      • Apr 2018
      • 9114

      #287
      Dave, the ice cleats come in 3 parts so you might need to triple the 34. That's one heck of a part count. :tongue-out3:

      Cheers,
      Richard

      Comment

      • Tim Marlow
        • Apr 2018
        • 18944
        • Tim
        • Somerset UK

        #288
        I don’t follow your maths Dave, but I might be having a thick day....I make it (98x6) + (17 x 6), which is 690. Still high, but if the clean up is minor, then more than doable.

        Comment

        • prichrd1
          • Apr 2018
          • 694
          • Paul
          • Conwy

          #289
          Looking at the first picture of the tracks - assembly to me looks like :-
          One track link [Grey bit], 2 track pins [Green/Blue] so that is 288 parts for one side, 576 for both sides.
          Ice cleats [Pink bits] 3 parts - 17 per side so that is 51 parts, both sides 102 bits of yummy carpet monster food.
          Total parts 678 !!!

          [Matron I need a lie down now!!!! :tongue-out3: :smiling::smiling::smiling:]

          Think I'll stick to Friuls or MasterClub at least it keeps me out of the wife's way!!

          Paul.
          :smiling:

          Comment

          • rtfoe
            • Apr 2018
            • 9114

            #290
            Guys...one track link [Grey bit]-98pcs, 2 track pins [Green/Blue]-98pcsx2 so to make things easier just multiply 98 by 3 for one side of the track which comes to 294pcs so it becomes 588pcs for both sides then you add the Ice cleats [Pink bits] 3 parts - 17 per side so that is 51pcs, both sides will be 102pcs. Now add them all up, you'll get 690pcs. So Tim's final calculation is correct.

            With Fruil you will need to drill and clean up to fit the pins so if the price is right I'd go for 3D prints.

            Cheers,
            Richard

            Comment

            • Steve Jones
              • Apr 2018
              • 6615

              #291
              Personally I think you should use the Kummer–Vandiver conjecture.

              The class number h of the cyclotomic field {\displaystyle \mathbb {Q} (\zeta _{p})}{\mathbb {Q}}(\zeta _{p}) is a product of two integers h1 and h2, called the first and second factors of the class number, where h2 is the class number of the maximal real subfield {\displaystyle K=\mathbb {Q} (\zeta _{p})^{+}}K={\mathbb {Q}}(\zeta _{p})^{+} of the p-th cyclotomic field. The first factor h1 is well understood and can be computed easily in terms of Bernoulli numbers, and is usually rather large. The second factor h2 is not well understood and is hard to compute explicitly, and in the cases when it has been computed it is usually small.

              Kummer showed that if a prime p does not divide the class number h, then Fermat's Last Theorem holds for exponent p.

              The Kummer–Vandiver conjecture states that p does not divide the second factor h2. Kummer showed that if p divides the second factor, then it also divides the first factor. In particular the Kummer–Vandiver conjecture holds for regular primes (those for which p does not divide the first factor).

              So to summarise its easier to build something with no tracks at all :smiling5: :thumb2:

              Comment

              • adt70hk
                SMF Supporters
                • Sep 2019
                • 10438

                #292
                Originally posted by Steve Jones
                Personally I think you should use the Kummer–Vandiver conjecture.

                The class number h of the cyclotomic field {\displaystyle \mathbb {Q} (\zeta _{p})}{\mathbb {Q}}(\zeta _{p}) is a product of two integers h1 and h2, called the first and second factors of the class number, where h2 is the class number of the maximal real subfield {\displaystyle K=\mathbb {Q} (\zeta _{p})^{+}}K={\mathbb {Q}}(\zeta _{p})^{+} of the p-th cyclotomic field. The first factor h1 is well understood and can be computed easily in terms of Bernoulli numbers, and is usually rather large. The second factor h2 is not well understood and is hard to compute explicitly, and in the cases when it has been computed it is usually small.

                Kummer showed that if a prime p does not divide the class number h, then Fermat's Last Theorem holds for exponent p.

                The Kummer–Vandiver conjecture states that p does not divide the second factor h2. Kummer showed that if p divides the second factor, then it also divides the first factor. In particular the Kummer–Vandiver conjecture holds for regular primes (those for which p does not divide the first factor).

                So to summarise its easier to build something with no tracks at all :smiling5: :thumb2:
                And so succinctly put too......

                Comment

                • Airborne01
                  • Mar 2021
                  • 4031
                  • Steve
                  • Essex

                  #293
                  Originally posted by Gern
                  So that's 98x2x6 = 1176 + 34 = 1210 parts just for the tracks on a Pz III/IV winter version? Is it just me that finds that ludicrous?
                  No!

                  Comment

                  • Allen Dewire
                    • Apr 2018
                    • 4741
                    • Allen
                    • Bamberg

                    #294
                    This is what I love about this post the most. A good hearty discussion over new products (thanks Dave) and a refresher course in Math 101. Sadly, I have to worry about our good friend Stevie though,

                    Originally posted by Steve Jones
                    Personally I think you should use the Kummer–Vandiver conjecture.
                    I seriously think he's been running the motor in the Plymouth too long without rolling down the windows........again!!! Please my friend, don't you know that carbon monoxide is not good for the brain cells................

                    Prost (and roll those damn windows down)
                    Allen
                    Life's to short to be a sheep...

                    Comment

                    • prichrd1
                      • Apr 2018
                      • 694
                      • Paul
                      • Conwy

                      #295
                      Originally posted by Steve Jones
                      Personally I think you should use the Kummer–Vandiver conjecture.
                      But you forgot "Y" - which allows for centrifugal force during the downward motion as the carpet monster opens it's mouth !
                      And also allows for a dix dis dys dunce person who can't use a calcolator abacus !!
                      NURSE - more meds please :smiling: :tongue-out3:

                      Paul.
                      :smiling:

                      Comment

                      • Tim Marlow
                        • Apr 2018
                        • 18944
                        • Tim
                        • Somerset UK

                        #296
                        ......and as yet, nobody’s mentioned Schrödinger’s cat......or even Occam’s razor!

                        Comment

                        • BattleshipBob
                          SMF Supporters
                          • Apr 2018
                          • 6820
                          • Bob
                          • Cardiff

                          #297
                          Originally posted by Steve Jones
                          Personally I think you should use the Kummer–Vandiver conjecture.

                          The class number h of the cyclotomic field {\displaystyle \mathbb {Q} (\zeta _{p})}{\mathbb {Q}}(\zeta _{p}) is a product of two integers h1 and h2, called the first and second factors of the class number, where h2 is the class number of the maximal real subfield {\displaystyle K=\mathbb {Q} (\zeta _{p})^{+}}K={\mathbb {Q}}(\zeta _{p})^{+} of the p-th cyclotomic field. The first factor h1 is well understood and can be computed easily in terms of Bernoulli numbers, and is usually rather large. The second factor h2 is not well understood and is hard to compute explicitly, and in the cases when it has been computed it is usually small.

                          Kummer showed that if a prime p does not divide the class number h, then Fermat's Last Theorem holds for exponent p.

                          The Kummer–Vandiver conjecture states that p does not divide the second factor h2. Kummer showed that if p divides the second factor, then it also divides the first factor. In particular the Kummer–Vandiver conjecture holds for regular primes (those for which p does not divide the first factor).

                          So to summarise its easier to build something with no tracks at all :smiling5: :thumb2:
                          My brain hurts :cold-sweat:, now i know how a 12 speed ZF truck gearbox works and thats got piles of parts:thumb2:

                          Comment

                          • Gern
                            • May 2009
                            • 9254

                            #298
                            Originally posted by Tim Marlow
                            I don’t follow your maths Dave, but I might be having a thick day....I make it (98x6) + (17 x 6), which is 690. Still high, but if the clean up is minor, then more than doable.
                            Is your Pz III/IV gonna limp along with tracks just on one side? :smiling3:

                            PS I didn't realise the ice cleats were multi-part.

                            Comment

                            • Mark1
                              • Apr 2021
                              • 4156

                              #299
                              Originally posted by Tim Marlow
                              I don’t follow your maths Dave, but I might be having a thick day....I make it (98x6) + (17 x 6), which is 690. Still high, but if the clean up is minor, then more than doable.
                              I concure.

                              Comment

                              • Gern
                                • May 2009
                                • 9254

                                #300
                                My bad folks! I didn't realise that the pink bits were the ice cleats so it looks like Tim and Richard and Mark are right.

                                I haven't the faintest idea where Steve got his cycle from - I don't think I've ever seen one with tracks instead of wheels.

                                Even so, nearly 700 parts just for the tracks is still just silly.

                                Comment

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