4" Showman Dynamo
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4" Showman Dynamo
Hi All
It may appear that nothing much has been happening with the Showman dynamo but work has been going on in the background.
On Friday Ian showed a prototype proof of concept of a dynamo using re-purposed parts and a very large rare earth magnet. The video below is the result. I do think Ian needs good praise and a big pat on the back for work done.
Please remember it is still a work in progress but good progress. The workings of the dynamo will fit within the existing main dynamo casting. This makes production simpler and may even be offered as a purchase replacement for existing Showman drivers.
The specifications as it stands. Around 22 amps at 900 rpm (The bulbs shown here are fewer than the showman but much higher wattage) This being on par with existing dynamo output. Voltage still needs a little work but that is "Dyno Mark2" activity.
It may appear that nothing much has been happening with the Showman dynamo but work has been going on in the background.
On Friday Ian showed a prototype proof of concept of a dynamo using re-purposed parts and a very large rare earth magnet. The video below is the result. I do think Ian needs good praise and a big pat on the back for work done.
Please remember it is still a work in progress but good progress. The workings of the dynamo will fit within the existing main dynamo casting. This makes production simpler and may even be offered as a purchase replacement for existing Showman drivers.
The specifications as it stands. Around 22 amps at 900 rpm (The bulbs shown here are fewer than the showman but much higher wattage) This being on par with existing dynamo output. Voltage still needs a little work but that is "Dyno Mark2" activity.
_________________
Lynn
Technical Support
Steam Traction World Ltd
Re: 4" Showman Dynamo
Nice work, is that @ 12v nominal output ?
LiveSteam- Number of posts : 787
Location : Hampshire
Registration date : 2013-09-08
Re: 4" Showman Dynamo
Hi
Yes we are aiming for 12v.
Yes we are aiming for 12v.
_________________
Lynn
Technical Support
Steam Traction World Ltd
Re: 4" Showman Dynamo
Lynn@STW wrote:Hi
Yes we are aiming for 12v.
Handy, if I had a showmans I'd be tempted to add a set of quick release power take off terminals for say ............. charging your leisure battery on ones van, caravan etc when on the rally field although it might need a bit of regulation added to avoid over charging the battery but a fairly simple affair to add.
LiveSteam- Number of posts : 787
Location : Hampshire
Registration date : 2013-09-08
Re: 4" Showman Dynamo
To charge a "Car" style battery you need 14ish volts but I like your thought.
lynnr- Number of posts : 3242
Age : 56
Location : Highland, 4inch showman
Registration date : 2010-08-06
Re: 4" Showman Dynamo
Hi All
Just to let you all know. The work on the dynamo is still ongoing. I am currently sourcing supply of Neodymium magnets with a high flux force to trial in the dynamo V0.2. We are aiming for 12 volts DC at 600 to 700 rpm with around 25 amperes. Not quite the "flux capacitor" but close.
As said before we would prefer to get the design 100% right before releasing in to the wild. So please be patient.
Just to let you all know. The work on the dynamo is still ongoing. I am currently sourcing supply of Neodymium magnets with a high flux force to trial in the dynamo V0.2. We are aiming for 12 volts DC at 600 to 700 rpm with around 25 amperes. Not quite the "flux capacitor" but close.
As said before we would prefer to get the design 100% right before releasing in to the wild. So please be patient.
_________________
Lynn
Technical Support
Steam Traction World Ltd
Re: 4" Showman Dynamo
Thanks for the update Lynn they are appreciated
Mark the spark- Number of posts : 389
Location : Edinburgh
Registration date : 2015-04-26
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