by John Tomlinson
Updated July 2018- new plans
These model steam engine plans have been obtained and downloaded free of charge from public domain internet and out of print magazines/books
All plans are downloadable free of charge. – New plans added July 2018- Now over 140 free steam engine plans to download on 3 pages
Check out the Full Size Steam Engines in Thailand – Photographs and locations
An excellent collection of model steam engines made from bar stock – easy for the beginner but still some plans are challenging even for the more advanced modeler – Elmer’s Engine plans are by far the most sought after plans for simple model steam engines without castings.
A new page of Free Steam Engine Plans for download – Over 140 free Steam Engine plans over three pages
The largest collection of free Steam Engine Plans on the web – Build a Steam Engine at Home or make a small steam generator
– check out the free Jet Engine Plans Page, free Petrol, Diesel and Gas Engine Plans
4 pages of Quality Steam Engine Plans -Download free of Charge
Most of the Steam Engine Plans below are in PDF format,
Build your own Model Steam Engine at home with our free plans for Live Steam Models
The first steam engine I built is Here – a good first Home Made Steam Engine
Michel Niggel Steam Engine Plans
Dave Watkins Plan – DeWinton Steam Engine –197kb – Steam Engine Plans
George M Carlson Plan – Double Scotch –111kb Scotch Yoke Design
JP Duval Plan – Steam Train – 1.4Mb Excellent Plans for a live steam Train
4 Cylinder Wobbler Plan –635kb
– four Cylinder Wobbler project
Old Book Steam Engine Plans
Steam Engine With Scraps – 2.7Mb Make a steam engine from scrap metal
Stirling Engines – Hot Air Engine Plans
Engine 1 – Sterling Heat Engine Plans for the home hobby engineer
Engine 2 – Sterling Engine Plan for the beginner
Engine 3 – Make your own green steam engine to save the environment
FizGig AutoCad – Computer Designed Sterling Engine – 3d Model material
Most of the plans on this page require use of the usual Equipment and Power Tools found in the Home Workshop – these include a Mini-Lathe or small Lathe, a Drill Press and Drill Bits.
Other useful equipment for the model engineer is a Vernier Gauge, a small steel ruler, center punch and stylus.
Plans are available for free download by clicking Here
Steam Engine Plans – Working Model Live Steam Engines
Ayesha 2.5″ Gauge Steam Loco – Steam Train Plans for the Hobby Engineer
Horizontal Steam Engine – Plans to build a Horizontal Steam Engine without castings
Vertical Steam Engine – Build your own Vertical Steam Engine and Sell it on eBay
Rotary Valve Engine – An unusual design that will make a great display piece
Model Engineer Plans 1932 – A true vintage project, no metric units on this plan set
Wood Engine a wooden steam engine but not a wooden boiler
Boat Engine Ideal for the Model Boat Builder – a live Steam Engine for Model Ships
Elbow Engine – Probably the most downloaded plan set on John-Tom and Most Difficult
Little Husky – Nothing to do with a small Inuit canine
Model Engineer Steam Crane – Build your own Steam Powered Model Crane
Pop Mechanics 1963 Engine – A classic old time build for model Engineers
Model Engineer Whistle – annoy your neighbors with a steam whistle – while you can!
Ajax Model Eng – Model steam train plans free to download
FizzWhizz Steam Car A true green steam powered car – build a steam car toy
Mod Eng. Horizontal Engine
French Live Steam Model Loco A Steam Locomotive with plans in French
Steam Loco AutoCAD DXF files AutoCAD drawings for a Steam Engine – progress?
French Twin Cylinder Plans to make a Two Cylinder Engine from France
French Wobbler nothing to do with an out of control Parisian
Pop Mechanics Boiler 1963 – build a boiler for your live steam engine model
Pop Science Boiler 1947 – Great design for a model steam engine boiler
Model Steam Boat Plans
A collection of Steam Boat Plans for your marine engines – there is nothing like a live steam boat that you have made from scratch.
– Build a Small Steam Engine at home
add a new dimension to your steam hobby and branch into boat building – you will enjoy it – I did!
Building a model steam boat can be a very satisfying project, some builders never sail their model steam boat – they immediately start a new Steam Ship Project
A steam powered radio controlled boat can be made with these detailed plans for a steam launch. RC Steam boat plans.
Horizontal Slide-Valve Engine Plans
A great project for any enthusiast – A horizontal slide valve engine and water pump full plans without castings – this is a big model engine that has amazing torque
Simple Reciprocating Steam Engine Plans
Simple reciprocating Steam Engine Plans 144kb in size and in .pdf format with instructions to build and run
This is a steam Engine project that can be completed without castings and easily made in a Home Model Engineers Workshop.
Twin Cylinder Wobbler with Lubrication – Steam Engine plans
A complete plan with instructions and parts/materials list for a twin cylinder wobbler steam engine with auto lubrication
The ideal twin cylinder project for home model engine machinist and hobby engineer. A Mini-Lathe and Drill Press are useful home workshop tools to have.
Vacuum Engine Drawings
A vacuum engine with instructions in German – 1.3mb in pdf format
Similar to a flame licker engine, this project is a great visual display engine making it the ideal project for the hobby group builder.
Twin Cylinder Steam Engine Blueprints
Twin cylinder steam engine with plans in French – 771 kb in .pdf format
make a twin cylinder live steam engine and see the massive difference in Torque – this type of engine is recommended for model ships and boats.
V Twin Engine Plans from Gerold Posch
Plans for a V twin with over 40 pages of drawings and instructions and photographs – excellent plans in .pdf format
4 Cylinder Wobbler Blueprints from Helmut Pirker
Plans and 3d drawings for a 4 cylinder steam engine with 17 pages in pdf format – 504kb in size
Fire Eater Engine Drawings
Fire Eater Engine Plans in .pdf format – 1.04mb in size – good easy to follow plans for an amazing engine
A Frame Vertical Engine Drawings from 1870
A Frame Steam Engine in Auto Cad dwg file format – 350kb in size
Steam Engine Boiler Plans
A selection of Steam Engine Boilers in pdf format – 551kb in size
All home made boilers should be properly tested and certified to avoid serious accidents with steam under pressure – latent heat in steam causes severe burns.
Candle Engine Plans and Instructions
Candle Engine in pdf format – 3.9mb in size
Run your Engine from a candle – not the greenest of engines but non the less, a very interesting project
Rotary Valve Engine – Rotary Valve Model Steam Engine – Can run of Live Steam or Compressed Air
Hot Air Engine – Stirling Engine Plans
Hot Air Engine in pdf format – 237kb in size
A basic easy build Sterling Engine
Steam Pump Plans
Steam Pump in pdf format – 201kb in size
A steam powered water pump that can be scaled up for Tree Hugging camp sites
Steam Turbine Plans
Steam Turbine in pdf format – 299kb in size
Probably one of the best projects for a quick return on satisfaction compared to effort – a real fun project that will provide hour of high pitched turbine whine.
This is the project that gets dusted off and connected to the air hose every time the lads come round for a beer – make this and you will not regret it!
Vertical Steam Engine from 1947
Vertical Steam Engine from Model Engineer 1947 in pdf format – 113kb in size
Vertical steam engine for boats
Water Turbine Plans
Water Motor in pdf format – 167kb in size
The project to upset your wife or mother as you plug this contraption into the kitchen sink
Conway 3 1/2″ Gauge Saddle Tank Locomotive Plans
59 Pages in Adobe PDF format for a live steam locomotive featured in Model Engineer by Martin Evans – 1.2mb in size
Steam Powered Model Helicopter Project
A project to make a non-flying model Helicopter powered with a steam engine with a flash boiler
This has been an ongoing project with very little time spent on it – I reassembled the heli to make this video clip and ran the engine on compressed air for ease.
The engine is a single cylinder double action wobbler and will turn the rotors at 10psi and has a surprising amount of torque on start up. I have not had the pressure above 25psi with the rotors engaged but the engine has been tested at 90psi. …. More details and Plans for the Steam Powered Helicopter here
Model Steam Train Plans – Build Steam Engines at Home
Other Engine Plans
Twin Cylinder Glow Engine , Twin Cylinder Glow Engine – Nitro methane freaks look here!
4 Stroke Gasoline Engine , Petrol powered home built RC Aircraft Engine plans
RC Tank Machine Gun , A blank firing .22 Gatling Gun Plan Set – Free to Download
. 2.5″ Gauge Live Steam Large Scale Steam Loco – Premium Plans
“LBSC” was the pen-name of one of model engineering’s most prolific writers. Lillian “Curly” Lawrence was born in 1882 and died in 1967.
Ayesha (The name Ayesha comes from a character in “She”, a novel by H. Rider Haggard) is one of the more famous model locomotives by LBSC and was used in a challenge to prove that the 2 1/2″ scale Live Steam Locomotives where capable of pulling human passengers. LBSC designed a boiler for his model and set out to prove the point.
The PDF Plan Set Consists of
4 Drawings sized 11.69″ x 24.8″
2 Drawings sized 16.53″ x 23.39″
3 Drawings sized 11.69″ x 16.53″
1 Drawing sized 8.26″ x 23.9″
LBSCR – Brief History in PDF Format
Ayesha Boiler Challenge – Brief Description in PDF format
The technical details of the model are
Frames – 17 5/8″
Coupled Wheels – 3 5/16″ diameter
Cylinders 13/16″ bore x 1 1/8″ stroke – Inside slide valves operated by slip eccentrics
Boiler barrel 3 1/4 ” o.d.
Firebox coal fired
All parts are detailed including safety valves and boiler valves – the plans are a complete set guiding you to produce a vintage 2 1/2″ gauge Steam Locomotive capable of pulling passengers.
The plans assume that the builder has access to normal workshop tools.
This plans set is for experienced model engine builders although a novice builder would be capable of building this engine.
Cost of the Plans Set is US $8.00 – Click Here For Details on Downloading the plans
Live Steam Road Roller
A short clip of my Wilesco Steam Road Roller in action – I purchased this model in Hamer, Germany 20 years ago and has seen little use and has followed me around since.
A new page of Free Steam Engine Plans for download – Over 140 free Steam Engine plans over three pages. These plans are a valuable resource for building a steam engine at home.
Striling Engine Plans and more live steam engine plans for free. Plans to build Green Environmentally Friendly Steam Engines that can drive generators and pumps. Recently added AutoCAD Steam Train Plans
Video Clip by “The Engine Maker” –
Model Steam Engine Boilers and Small Live Steam Engines – search through the free plans at John-Tom.com
Home Workshop Equipment that is recommended for Hobby Steam Engine Building includes a Mini-Lathe, Drill Press and a small milling machine.
Home made Steam Engine Boilers should be tested before use. It is very important to use Silver Solder or Brazing Alloy for all joints on a model Live Steam Boiler.
Normal Lead/Tin solder is not suitable for the considerable pressure created in a Model Steam Engine Boiler.
Model Steam Engine Boilers can be fired with Alcohol, solid fuel tablets, wood or even coal. Consideration must be given to which fuel type is to be used when choosing the free boiler plans.