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Author Topic: mini steam car  (Read 2815 times)

RON

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Re: mini steam car
« Reply #30 on: April 11, 2019, 08:23:01 am »
Frazer very nice i have bookmarked it and will study it later many thanks
Update so far  what i said about a steam platform you will see at the end
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Hopefully you can see what i have been up to the UV joint will be replaced it had been bored out to 3mm where as the shaft this time is 2.3mm and is too wobbly new one on order. Shaft this time is quite short wanted to see how short i could go lengthwise as a result the shaft is light  that`s why you will see the spring otherwise it won`t engage properly the gear is just one i picked out the scrap box and may not be the final one. Once the correct gear is found the spring can be adjusted for correct tension the two vertical bolts are there to keep the worm in line with the gear.

RON

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Re: mini steam car
« Reply #31 on: April 11, 2019, 08:38:30 am »
Hopefully now i can show you what i meant by a steam platform
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instead of steam i propose to fit my small compressor it`s tube is about a meter long and the elect cable the same which really should give me 6feet to play with when cable connected to wall socket that way i should be able to change gear to suit the wheel dia used so really a wee useful tool
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The mockup just sat on top never measured the platform or anything and dare i say nearly exact i think it must be an omen. Remember the platform is only a tool.
Still waiting for bits and pieces to arrive so who knows

txlabman

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Re: mini steam car
« Reply #32 on: April 12, 2019, 12:14:47 pm »
Very nice progress.

I am really enjoying this build thread.

Thank you!

RON

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Re: mini steam car
« Reply #33 on: April 16, 2019, 09:37:50 am »
Well i hope you can hear the word "eureka" now i am really winning what you are looking at now is a rolling chassis
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The boiler is the final one 28 x 40 mm with 15mls of water it took 2mins to steam up then there was a spurt of water lasted  about 1sec then it ran non-stop for 5mins just what i wanted
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With the compressor attached it can be walked like a dog up to a point the black wheels ( 1 5/8" ) came as spares along with axles when i bought a Stirling engine they were the ones i first tried but the gearing was a little to slow
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You can see i bought some plastic gears and i found a gear with 56teeth along with the yellow wheels which are 2"dia. and dare i say the speed for me is just perfect of course depending what engine you use you may have to change the gearing when it was running across my table top i laid a pair of pliers on top and it just kept running. So now i`m really back to the experimental stage waiting for a proper UV joint  to arrive hopefully Thursday what i intend to do is to add weight until it stops moving don`t really know if that`s what i should do.........open to comment
Lastly what i need to do before i get serious is to try and work out a burner arrangement so Jim or anyone if you are reading this i`m open to suggestion if a car is what you like to make the transmission works a treat

Stoker

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Re: mini steam car
« Reply #34 on: April 16, 2019, 10:45:18 am »
Great progress report, and I definitely like the new wheels !
"Information is not knowledge, Knowledge is not wisdom, Wisdom is not truth, Truth is not beauty, Beauty is not love, Love is not music: Music is THE BEST...   
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F. Zappa ... by way of Mary, the girl from the bus.

RON

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Re: mini steam car
« Reply #35 on: April 17, 2019, 04:31:31 am »
A while ago i bought two cars incomplete, parts missing and so on makers name i don`t know but i think an expensive kit in its time the idea was to replicate them in metal then this project came along i.e. mini steam car
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You can see the boiler would fit the engine would if i widened the chassis a little i like the idea of the fuel tank behind the seats so something like that i will need to think about for the mini.
The next one
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A little smaller but more complete so i don`t think i will touch it the wheels are more or less the same patern but a little smaller 1 3/4" also the steering works
The wheels, top one i did think of making a mold an casting them in metal but need to finish this one first hopefully job for the summer so you see i`m still a long way off and many things to think about but i`m enjoining it.
Wheels makes a change from seeing Mamod ones all the time

Nick

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Re: mini steam car
« Reply #36 on: April 17, 2019, 09:49:44 am »
Great progress report, and I definitely like the new wheels !

I like the new wheels as well
Nick

RON

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Re: mini steam car
« Reply #37 on: April 20, 2019, 05:26:07 am »
Boiler now installed
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My thoughts now turned towards the burner
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What you see is the burner from my Genny Wren some thing like that only larger or a fuel tank along the back of the seats like the previous pic shown ( yellow one ) not sure but i think it`s an 1906 Ford
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I thought this might interest some people playing with it on my desk using the small compressor i added some weight and what you see amounts to 886 grams i think i could have pushed it to 1kg or more so now i think it`s time to get serious. Anyone interested making a car you are welcome to copy what i have just done and believe me it WORKS apart from the initial cost of the engine the rest so inexpensive and i`m sure your skills are better than mine you will have one up and running in no time.  Now i think it`s time i looked at some chassis i might continue to get it running on steam but at the end of the day it will be stripped and the same components used in dare i say a scale model.
Tell me you don`t like this
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St Paul Steam

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Re: mini steam car
« Reply #38 on: April 20, 2019, 06:52:42 am »
very interesting, I'm certainly following along now.
Bruce, St. Paul Indiana, USA
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classixs

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Re: mini steam car
« Reply #39 on: April 20, 2019, 08:42:50 am »
Ditto !

Well done so far
Cheers
Jan
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RON

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Re: mini steam car
« Reply #40 on: April 30, 2019, 04:42:43 am »
Have now made the final frame would like to call it a chassis but you can see it`s really a frame it took me 3 attempts to get there the first 2 times the frame buckled after silver soldering i`m not sure but it may have been me cooling it with water
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This is my third attempt and this time i didn`t cool it .  It was pinned between 2 dural plates i thought the dural would melt while soldering but it never surprised but that`s what happened
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Now it`s really a case of transferring components
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Two mods using a nylon worm and the two bolts that keep the shaft inline replaced by a brass angle with a slot cut out same size as the shaft dia.
The body shell will be bolted to the top (when made ) should be simple enough my immediate problem now is how to secure the axles this time i want to make it steerable easier said than done so really have a lot to think about.

Nick

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Re: mini steam car
« Reply #41 on: April 30, 2019, 08:12:23 am »
Looking good Ron  8)
Nick

RON

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Re: mini steam car
« Reply #42 on: May 01, 2019, 10:01:44 am »
Thanks to B & Q i.e. 1" ali angle lets me get the back end sorted out
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Hopefully now you can see where i`m going
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Still unsure what i`m really going to do about the front still want to make it steerable but i don`t want to use king pins.  Looking at the 1902 Cadillac i don`t see king pins front axle looks like a girder of sorts and i think a through back to locomobiles certainly by 1903 they did have king pins, i like the front axle arrangement of the Ford model T but make it rotate like the Mamod steam roller something along those lines still thinking.

Saw a video of a 1905 Cadillac start up procedure made my day like some of you i had car with a starting handle and you know it was fitted below the radiator at the front if you see a photo of a 1905 Cadillac chassis right in the middle is a flywheel and the starting handle goes through the left hand side of the chassis to turn the flywheel to start the engine and so on really never knew that

RON

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Re: mini steam car
« Reply #43 on: May 04, 2019, 04:42:19 am »
Steering two strips of brass 2.5 x 7mm soften first
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formers attached using 5min epoxy then squeezed in a vice
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Principle OK but the bend to tight
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so really was a case of light tin bashing
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Axle now fitted but forgot to drill holes for linkage will do that next time i strip it
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Takes me back to the 40`s where the boys ( lucky ones although i never had one ) used to run about in their go-karts steering principle the same except they used their feet. Now i think it`s time to make cut outs for the servos think i will fit two the only place they can really go is either side of the prop shaft just behind the cylinders the other thing is where to position the burner tank ( still to make ) position of all three is really important that will determine what type of body i can make hoping it can be a roadster of sorts will now have to make patterns to see exactly where thing can go.

RON

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Re: mini steam car
« Reply #44 on: May 07, 2019, 09:09:07 am »
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Works mechanically so should be alright when radio gear installed 
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Will make something nicer when radio gear installed have seen other steering examples where 4 or more rods are used maybe it`s something to do with king pins but with this set up only one rod is required. Will need to extract the digit and get on with the burner.
Last pic might interest some of you crocodile hair clips 50 for £1.99 handy for soldering not extra strong but i think handy