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stu knowles

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Posts posted by stu knowles

  1. On 26/03/2022 at 20:40, eflightray said:

     

    Later this year I may be giving up completely,

    Ray.

     

    Hello Ray,

    I came across your builds years ago and have followed your builds on your own site and the various forums with interest. I have admired your construction methods and how you have carved your own path in  the design and build of fine looking models which fly well.  Although I haven't yet followed in my own builds I have found them very interesting and they go to show that there are many ways to construct  good looking scale models without a huge bank balance.

    Sorry to hear that  you are moving on but you can be assured that you have left your mark on aeromodelling.

    All the best for the future

    Stu K

    • Like 1
  2. Derek Scott, the guy in the UK Model Plans link that John has listed above is a first rate guy, has a massive range of plans available and is highly skilled at enatging and reducing pans to yoru chosen size.

    If have no connection with his business beyond having used him several times and always been highly delighted with the results

  3. Most motor factors can mix paint to a satin finish which is still quite glossy, too shiny for a warbird type but a fair representation of a scaled down gloss finish.  Too be fair it does look much like the lower section of your test piece.  Its perhaps a better place to start than with full gloss paint?

  4. The layout that I am working toward will have two 'handles' in a side by side configuation. One being the original Dynatron and the second being the handle behind the new starter cup. That will negate and twisting issues.  The person holding the starter will have two hands on and a second helper will hold the model.  Its a fairly standard and accepted means of using a starter on a large model.

  5. Could a bicycle headset be adapted to produce the thrust bearing and handle?  If you cut the rest of the frame away, you would be left with a tube with two thrust bearings.

     

    Thats a good thought and a nice bit of recycling - cycling.  I will also look at the drill gearbox although I feel that the engineering challenges in taking this route could be more complex than the toothed belt drive option

  6. Thanks Gents.  I'm on the hunt for tube and bearings and will do some sketches before cutting metal.

     

    Thanks for the safety advice.  My last time on a lathe was in the school Metalwork Shop.  I made a set of darts -  The Metalwork Teacher was very laid back - and probably too busy making a clock which seemed to take up a lot of his time in lessons.  Happy Days!

  7. Thanks Gents.  Is it worth it?  Clearly not, I have a JE starter and where possible I hand start where possible, but its something that I would like to do.  I have the original starter and the large cup so marrying it all together seems an interesting exercise.  

    Ron, Making the gears is way beyond me and at the moment, I wouldn't know where to go for an off the shelf set.  The toothed belt set is for an electric scooter so it should be sufficiently heavy duty for my purpose and seem a pretty simple set up.

    I'm still stuck for suggestions on a source for the handle at the cup end

    • Like 1
  8. Hi to All,

    I am very new to a Metal Lathe which now occupies a place in the shed.

     

    As a project, I would like to have a go at building a geared starter.  I have a Sullivan Dynatron which I no longer use as it has been displaced by the Just Engines Geared Starter.  The Dynatron turns too fast for my liking.

     

    I have a spare Large Starter Cup and Rubber Insert, also from J/E and I have wondered about using something like this:-

     

    DWireless Electric Skateboard Accessories Belt Motor Pulley For 72MM Wheel Sale - Banggood UK

     

    Stir briskly and combine to produce a geared starter all fixed to something like a 6mm Alloy plate.   Sullivan also do a Megatron starter which illustrates the layout that I would like to follow

     

     

    I can see how to mount the Dynatron but on the other side I will need some form of handle incorporating a Thrust Bearing and shaft to take the Starter Cup.  I'm flat out of ideas about what to adapt for this handle / shaft.

     

    I realise that the simple option is to flog the Dynatron and buy another J/E Starter but I would like to do this as a project in metalwork.  I also realise that in some ways, The Model Engineer forum could be a place to start but then its less likely that they will understand what I'm aiming for.

     

    Anyone any (repeatable) suggestions on how best to take this forward??

    Thanks.  

    Stu K

    starter.jpg

  9. I have used both Dynatron and the JE starters for a few years.  The Sullivan has been sidelined and rarely gets used.   Now that I have used both, I realise that the Dynatron turns too fast and can throw itself off the spinner or burn through the paint / plastic in a moment.

     

    I have thought of setting about it and converting it to a geared starter using a couple of toothed pulleys but the JE has stood up to everything that I have used it against from  25 size glow to a Zenoah 62.  I use an old 4 cell Lipo with both and have not had any problem with the switch fusing together - which is more than I can say for the Sullivan.

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