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Author Topic: mini steam car  (Read 2930 times)

txlabman

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Re: mini steam car
« Reply #75 on: May 29, 2019, 01:13:55 am »
A great thread that just keeps getting better Ron.

I have nothing technical to add, but I am a great fan of this build.

Looking forward to the next update! 🤠

RON

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Re: mini steam car
« Reply #76 on: May 29, 2019, 06:40:25 am »
Frazer a terrific video not quite sure what i`m looking at looks like pistons in what to me looks like part of the cylinder you and i will have much to discuss once i get this shell out of the road if it`s single acting cylinders then the so called experts are wrong will contact you later along with Sandy.  Charlie your some man follow your exploits when i find time hope you are well.
This might bore some of you and again maybe not
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RON

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Re: mini steam car
« Reply #77 on: May 29, 2019, 06:51:41 am »
The rear end can`t make a tailboat fairing this time so will try 1906 Cadillac model k  folding tonneau except it will just plug in
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The former
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Bit tricky but will see what i can do

CBWho

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Re: mini steam car
« Reply #78 on: May 29, 2019, 07:22:47 am »
Impressive!

Nick

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Re: mini steam car
« Reply #79 on: May 29, 2019, 09:35:22 am »
Nick

frazer heslop

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Re: mini steam car
« Reply #80 on: May 29, 2019, 10:28:35 am »
It is a double acting piston valved engine >The trick is the wee bit on the end of the crank just a disc with two pins and when the fore/reverse goes from one way to tuther the arm pushes the engine over the dead center allowing it to restart. It was an idea I first came across in a Model Engineer mag around the mid 1950s on a single cylinder wobbler
I doubt youre crank shaft ported engine will reverse but you could simply swap inlet over to exhaust to see what happens .Just with an airline would prove it
Keep plodding on
cheers

RON

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Re: mini steam car
« Reply #81 on: June 02, 2019, 07:46:31 am »
Hi Frazer sorry for late reply did as you suggested and there was a flicker of the flywheel but because i was just holding the airline it stopped maybe be if it was properly connected it might work if a reversing controller was fitted and to that end there is one on order. Further update on the body shell not going to good
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Can`t really sort the gap between the top cover and the side as above photo on the real car there seems to be a sort of cover but to replicate on a model to my eyes does not look nice so will have a rethink back to the corn flake packets there is no substitute for making a mock up first this time i won`t say which. Regarding the r c side depending how components are laid will depend the model and as you can see there is tonnes of room
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frazer heslop

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Re: mini steam car
« Reply #82 on: June 02, 2019, 03:37:36 pm »
A bit of inspiration from the master
http://www.wworkshop.net/Home_Page_/Home_Page.html
When I made my Morgan Beetle back I used copper for the body work as it was for me a little easier to form and I got it for free from an old domestic water tank.Still using bits of it 20 years later
Would it be possible to solder a tongue onto the part so it locates
cheers

RON

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Re: mini steam car
« Reply #83 on: June 03, 2019, 04:28:36 am »
My goodness there are a lot of beautiful models on that site really goes to show there are some really talented people about, myself i`m not on the same planet.  The problem i faced was cutting through the bend at an angle if you can follow makes it narrower at the rear than the front a real tinsmith would have no problem but for me i did say tricky.
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You can see there is a continuous lug but not much help, going to have to move the servos back 1/4" so i think a bit of a strip is in order if at first---. do have things in mind so all is not lost.

RON

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Re: mini steam car
« Reply #84 on: June 15, 2019, 09:48:38 am »
Don`t know where to really start the rev control valve arrived early but only now had time to connect it unfortunately i don`t have the correct size tube so i did my best with pvc.
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Lo and behold the first time i switched the comp on it self started next time it did not out of about 20 times 6 times it did rev/fwd so on average we have to say failure. If only a way could be found to stop the cylinder at a specific point ( magnet on the flywheel maybe ) then it might work. Still feel there is potential just need someone with a good brain the other point is how is this controller mounted it may just be to big to mount on the platform otherwise i`m only going to have a car that is steerable.
   

CBWho

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Re: mini steam car
« Reply #85 on: June 15, 2019, 05:41:24 pm »
That website is amazing but so is what you are doing.

frazer heslop

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Re: mini steam car
« Reply #86 on: June 16, 2019, 06:15:30 am »
Would it be possible to mount the for/rev under the chassis and make a lever along the lines of an old style hand brake lever
I think Iv recently seen someone on BloOOo forum doing a restart device
It maybe possible to make something like a motorcycle kickstart
Im sure there is another idea knocking about in a model boat the drawings are on the web just cannot remember how they did it or if its of any use
The boats name was LaMoutte 1908
cheers

RON

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Re: mini steam car
« Reply #87 on: June 17, 2019, 04:56:09 am »
Hi Frazer for the moment i have to say i`m beat the reason i bought this valve was because it was microcosm but in reality it`s really too large even if everything worked there is no room to mount it on the platform will just have to go in the spare bin put it down to my lack of knowledge. State of affairs at the moment the platform has been stripped and the servo opening moved back 1/4"now they can be replaced without having to remove the engine just needs a clean up and paint and from now on everything put on the platform will stay on
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The body shell too will need a clean up and paint tailboat fairing came in not too bad tried to copy the 1906 cad. model K not exact so will have to call it semi-scale everything fits except the rev valve
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So you see still much to be done. Once done it will be time to revisit the burner hoping it will just be the case of distance below the boiler or wick size so will be off air for a little while as they say
Best regards
RON

frazer heslop

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Re: mini steam car
« Reply #88 on: June 17, 2019, 01:34:25 pm »
what room do you have for the for/rev device ??
A simpler one as per the mamod toy trains may be a better job
The engine still wont reliably start and will only need a push when you dont want it

RON

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Re: mini steam car
« Reply #89 on: June 18, 2019, 05:08:50 am »
Really not much room except externally look at #53. Forgot Mamod made trains but the thought of a handbrake type appeals.  Memory not that great may have been the other forum but i did ask the question of engine self starting and it was classixs (member of this forum) who came up with the answer from memory it was a single acting cylinder stationary engine make i don`t remember but certainly not British but again i don`t remember if he explained how. So classixs if you remember it would be nice now if you came fwd and gave us the answer. Still cleaning.