Page 70 - TPM Issue2
P. 70

lubricated. I have to admit that the engineering
                                                                           of the individual track links is clever, and very
                                                                           effective with each link locking into place while
                                                                           still  being  movable.  A  diagram  on  page  19
                                                                           shows that once the tracks have been added,
                                                                           there should  be a little  slack  in the chain
                                                                           however on the sample, it was actually quite
                                                                           tight  and  this  had  a  consequence  once  the
                                                                           model was finished.

                                                                           One tricky operation was the fitting of all the
                                                                           internal gears which are first inserted into one
                                                                           side of the body before the other body panel
                                                                           is used to secure everything in place and it
     Above:                                                                is a little fiddly to get all the gears to stay in
     Each of the different sets of gears and cogs needs to be aligned      place, so a little care is needed. The remaining
     in one side of the main body part, before the opposite body part
     is used to secure everything in place                                 assembly steps are straightforward and once
                                                                           finished, it is time to wind up the spring are
                                                                           hey presto – nothing happens. It is at this stage
                                                                           that the tightness of the tracks highlights an
                                                                           issue, although by using my hands to move the
                                                                           tracks, they do start to move. I suspect that
                                                                           I have not lubricated the parts sufficiently for
                                                                           the tracks to rotate smoothly and one thing
                                                                           I am tempted to try is some silicone grease
                                                                           which could get the tracks spinning.

                                                                           Overall, this is an interesting kit to put together
                                                                           and the engineering is impressive. For anyone
                                                                           worrying about damaging the parts, there is
                                                                           a subset of the more delicate parts that are
     Right:
     Once fully assembled, the tracks should                               spare although once you have taken the first
     rotate and have a little bit of flex in them.                         couple of parts from the panel, you know how
     Lubrication is vital to ensure everything
     runs smoothly                                                         much force to use so damage should not be
                                                                           an issue.



     Below:
     The finished model without the blade fitted. All that is    Right:
     needed is to wind up the spring, set the speed control      A section of one of the panels contains a
     and pull back on the drive lever and away she goes          number of the more fragile spare parts in
                                                                 case parts are damaged when removing
                                                                 them from the panel






























   70  TPMMW Magazine - Autumn 2019
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