Simplex 'Tin Turtle'

Discussion in 'S7 Group' started by spikey faz, 7 November 2021.

  1. Giles

    Giles Western Thunderer

    It's a nice simple arrangement - there are a lot of gear motors available from China via EBay (search micro gearmotor or similar), and in this instance the Mod 0,3 gears came from
    Kegelzahnräder M0.2 und M0.3
     
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  2. spikey faz

    spikey faz Western Thunderer

    Thanks Giles. I shall investigate further.

    I had hoped to avoid making a chassis, hence fingers crossed that Mark from locosnstuff can come up with something. But it's good to have plan 'B'.

    Mike
     
  3. spikey faz

    spikey faz Western Thunderer

    I did say progress might be slow! Managed to find some time to add handrails. I was unable to locate the step that goes on one sideframe, so made one from a small piece of metal strip. Actually I made three. The first one pinged off into orbit around my room, the second one was rubbish but the third one turned out OK. One small step for man, one giant.....

    I've tacked the sideframes to the chassis - the end-sheets are just resting in place to get an idea of how it will all look. Despite my best efforts I haven't yet managed to obliterate the great details on the castings.

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    Mike
     
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  4. spikey faz

    spikey faz Western Thunderer

    I've soldered the floor to the side panels. I'm not entirely happy with the alignment, but it's solid enough having survived being dropped on the floor!

    Trial fit of parts pending arrival of chassis from Mark. Should hopefully be with me next week.

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    Mike
     
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  5. spikey faz

    spikey faz Western Thunderer

    I'm not sure if this constitutes progress, but a few more pictures. This time showing the fuel tank and how it sits in the chassis. It took me while to figure this out! Dry run again but it may be of use to anyone thinking of building their own version. The fuel tank is heavily chamfered on one side to gain clearance from the end plate.

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    Mike
     
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  6. spikey faz

    spikey faz Western Thunderer

    Radiator.

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    Mike
     
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  7. spikey faz

    spikey faz Western Thunderer

    The radiator top-hose looked a bit weedy compared to pictures I've seen of the prototype. Replaced this with some thicker wire and made up a little connector on the water manifold. This should help everything line up properly.

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    Mike
     
  8. spikey faz

    spikey faz Western Thunderer

    Chassis arrived in the post this morning. Many thanks to Mark at www.locosnstuff.com for creating this little work of art.

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    Mike
     
  9. spikey faz

    spikey faz Western Thunderer

    The engine cover slowly takes shape.

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    Some more general assembly pics.

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    At this stage I've realised I should have fitted the sandboxes before fitting the buffer beams! No problem as I can still wiggle them into place. However, should they stay in their original positions or should I move them out a bit to align with the wider gauge? I'm guessing the easy option on the prototype would have been to simply bend/extend the sandpipes to suit, but not sure.

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    Mike
     
  10. spikey faz

    spikey faz Western Thunderer

    Finally got the clutch, gear lever, reversing lever, sandbox controls, throttle and the advance/retard controls fixed in place. All done with low melt solder and no melt-downs! Also fixed the fan belt in place.

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    Mike
     
  11. Osgood

    Osgood Western Thunderer

    Are you planning to squeeze in a chip and subwoofer?
     
  12. spikey faz

    spikey faz Western Thunderer

    Hmm. Probably not! :D I'm sure someone out there has managed to do it, but well beyond my limited skills.

    Mike.
     
  13. spikey faz

    spikey faz Western Thunderer

    As I had a spare hour today I thought I'd modify the method of holding the subfloor and radiator in place. Although the subfloor is designed to be removable I wasn't keen on self tappers into whitemetal. Also I think the radiator is supposed to be glued in place, but I wanted it removable for adjustment/painting purposes.

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    Not very exciting, but I hope it might be of use to someone embarking on a similar build. :)

    Mike
     
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  14. Stevesopwith

    Stevesopwith Western Thunderer

    Mike.... having bought one of these kits as soon as they became available, I am finding your thread extremely useful.

    I particularly like your arrangement for a removable sub floor etc.

    There are some very small chips and stay-alive units that would probably improve the running, and when the time comes I shall present the project to our local 'Wizz'.

    Steve.