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machines which I have made, am making, or intend to make, and some other stuff. If you find this site interesting, please leave a comment.

Category: GEELONG SOCIETY OF MODEL & EXPERIMENTAL ENGINEERS

Model Engines on Steam

It is Geelong Show time again.  It is actually titled the Royal Geelong Show, but having had more than a gutful of royal non-entities visitors being adored by unthinking cringers, flocking around Harry and Meaghan Kardashian, Windsor, and being a committed republican, I refuse to bother with the “Royal” handle.  (they are probably very nice people, I just cannot stomach the hoo-ha).

More importantly, it gives us steam junkies a chance to run our small engines on real hot steam.

For a treat, I am sharing four short clips taken today.

The first is a small beam engine, made by Swen Pettig.

The next two engines you have probably seen before.  My beam engine, and the triple expansion engine.

The small engine to the right is a Stirling engine which is running on the heat from the exhausted steam from the beam engine.

The triple is leaking a bit more than it should, although it is running amazingly smoothly on 25-30 psi.  The valve glands need repacking.

And finally, a model IC engine, the really odd Atkinson.  A 100+ year old design.  2 stroke. Made by Rudi vanderElst

 

A Nice Day!

First was a trip to the boiler inspector, to inspect the first silver braze on the 6″ vertical boiler.  Passed!  And quite complimentary about the quality of the build so far.

And….  he has OK’d my plans for the Trevithick Dredger engine boiler.   Which is nice because I have already started it, and was going to build it in any case.  Only requirement is that I have to add a pressure gauge.  As far as I know, none of Trevithick’s engines used pressure gauges, just weight based safety valves.  So a pressure gauge will not exactly be in keeping with the historicity of the model, but it seems a small price to pay to get the boiler certified.   Now I am trying to work out where to place the pressure gauge so the operator can see it, but not the viewing public.

Then a late entrance to our GSMEE day meeting.  (Geelong Society of Model and Experimental Engineers).   I showed my progress on the 6″ vertical boiler.  And took some pics of some of the other items brought in by members.

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A very nice lagged boiler and engine by Neil

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and that firebox door is titanium!  And check out the screws in the base….  no-one is going to be able to unscrew this model!

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The steam control valve for Neil’s engine.  He used a solder with which I was unfamiliar…. “StayBrite” which is said to have a melting point above soft solder, but not as high as silver solder.   Bought at JayCar.   The cap screws have BA threads… unusual!

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And finally, a small steam driven pump brought in by our senior member Laurie, made decades ago by a friend.  Laurie is a club treasure, being a great raconteur, especially about his WW2 experiences in the Australian army, and having made superb models when younger which are still regularly run and exhibited.   The coin for scale is an Australian 50 cent piece; large, heavy, and it takes about 10 of them to buy a cup of coffee; much disliked.

 

Small Tube Bender

 

I have recently been busy installing a steam powered water injector on the 3″ Fowler traction engine.  Involved quite a few bends in 1/4″ copper pipe.

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Some of the new pipework on the traction engine.  Since this photo, I have also made the winch functional.  (pics of that in future post)

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Hand pipe benders.

I was not totally satisfied with the regularity in the bends, or the straightness of the runs in the pipe.  That provoked some discussion at our model engineering group, and one member (Stuart T) showed us the pipe bender which he had made some years ago.

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Pipe bender designed and made by Stuart Tankard.

 

As you can see it has a  heavy duty frame,  shoulder bolts holding the rolls with machined slots for various sized pipe, and a 19mm hex connector for the driving battery drill.  A demonstration of pipe bending on this machine convinced me of its superiority to the hand held benders

Fortunately for me Stuart still had the plans which he had drawn up, so I made my own bender.  I made a couple of changes to Stuart’s design.  I made a 1/4″ hex on the driving screw, to accept the commonly used connector for battery drills.  And I did not have any suitable bronze for the main bush, so I made a brass bush, which incororated  a thrust ball bearing which engages during the bending procedure.  Probably unecessary but it was there in my junk drawer so I used it.

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The radius of the bend in the tube is determined by the radius of the roll.  1″, 3/4″ and 1.5″.  Each radius has grooves for 1/8″ 3/16″ 1/4″ 5/16″ 3/8″ and 1/2″ tube.  Since then I have also made 2″ rolls.

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Aluminium rod for the rolls.  

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Using a bearing to centralise the tailstock end before center drilling.

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The lathe tools used to make the grooves.

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3 rolls turned from each length, with an allowance for parting.  Then drilled and reamed, and parted in a lathe big enough for the 2″ bar to be securely held.

 

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Completed bender.  The wooden box keeps the components organised.  Not a tribute to the craft of wood working but it will do.   The vacant pegs are for 2″ rolls which are yet to be made.

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The raw materials for the tool.  1″ X 3″ and 1″ square mild steel, and 1/2″ silver steel.

The bender is held in a bench vice.  The bending process is quick and controllable using a variable speed battery drill.

The symmetry of the rolls (as opposed to the asymmetry of the hand held tools) means that the centre and the mid point of the bend is totally predictable.

Since then, I have made some further changes in the design of the pipe bender.

  1. I have added some feet so it sits squarely on the bench and does not require a vice for support, although it can be held in a vice if preferred.  The tool is quite heavy, so small jobs can be managed without a vise.
  2. I drilled and threaded some extra holes, to accept 2 rows of 3 rolls.  See the photo below.  That pipe bender has now become a pipe straightener.  I made some extra rolls, so now there are 6 rolls of the 2″ size.  As long as the 3 rolls in each row are identical, the rolls in the 2 rows can be different for the straightening process, but ideally there should be 6 rolls for each pipe diameter.  Straightening copper pipe is easy, as long as there are no kinks or very sharp bends, and the copper must be annealed.  The pipe should be approximately hand straightened, cut to length plus about 2″, then pulled through the rolls which have been adjusted so the rows  are almost touching.  3 or 4 passes, with some rotation of the pipe each time results in a near perfect straight pipe.   Any slight residual bend can be eliminated by rolling the pipe on a flat surface.
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Some extra threaded holes added pipe straightening to the tools functionality.

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Two rows of rolls are needed to straighten bent pipe.  So I made 3 extra wheels in 1/4″ and 3/16″ sizes.  Later I realised that the extra three rolls do not have to be identical diameter to the first three, as long as each triple are identical.  The tool straightened this bend quite nicely, although with some experience, I would now probably hand straighten it a bit before putting in the tool. 

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After 2 or 3 passages.

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And some rotation with each pull through

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The copper does have to be annealed to get a good result.

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And to put a bend in that nice straight tube…  some shuffling of the roll positions….attach the drill (slow speed setting)

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And a quick and easy bend. 

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Pretty good

 

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The underside.  Substituted cap screws for grubscrews, so the tool sits flat on the benchtop.  quite adequate for light bending jobs, but straightening needs a vise.

 

MODEL ENGINES in the cage at the GEELONG SHOW

The following short videos show some of the engines on display by GSMEE in the Vintage Machinery Shed at the recent Geelong Show.  GSMEE is Geelong Society of Model and Experimental Engineers.  All engines are running on steam, except of course the Stirling engine,  the Farmboy, and the Atkinson engine.

These engines will be running again at the GSMEE exhibition 25-26 Nov 2017, at The Lifestyle Pavillion, The Geelong Showgrounds.  Several scale model traction engines, trade exhibits, outside entries, and the engines in the Vintage Machinery Shed will also be on show.  The Hatherly Challenge competition will be judged.  This year the challenge is to make a reversing horizontal mill engine.  Entry is free (gold coin donation accepted with gratitude).

Stirling Engine, running on heat from exhausted steam,  spinning a CD with spiral image, made by John V.

 

 

Stuart Victoria Twin, made by Malcom W

 

 

Bolton12 Beam Engine made by John V

 

 

Farmboy internal combustion engine, running on propane, made by Stuart T

 

 

Horizontal Mill Engine running on steam, reconditioned by John V,  (GSMEE exhibit)

 

 

Atkinson Engine, running on petrol, made by Rudi V.  FIRST PRIZE.

 

 

Stuart 5, running on steam.  Reconditioned by Rudi V.  GSMEE exhibit.

 

 

Beam Engine “Mary”, completed by Stuart T.  THIRD PRIZE.

 

 

Mill Engine, running on steam GSMEE exhibit.

 

 

Mill Engine running on steam.  GSMEE exhibit.

 

 

Mill Engine, running on steam, made by Malcolm W.

 

 

Triple expansion marine steam engine by John V.  Almost completed.  SECOND PRIZE.

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Metalworking for a cabinet maker

Our model engineering club has been locked out of our club rooms because MOULD has been detected in the building.   Apparently a lengthy process to reduce the mould to acceptable levels.  (note to self…. make sure that the inspectors never set foot in our house).

So our meetings have been held in various locations, including a sports centre and a basketball building.   I feel quite virtuous when I enter these buildings, but for some reason I do not feel any fitter when I exit.

A recent day meeting was held at my farm workshop.  Not my farm anymore, just the buildings.

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Not that one….   the other one.

And one of our more senior members requested a display of CNC machining, from design to product.

So, I drew up a finial which was required to complete a bookcase which I had built 30 years ago.  Then imported the DXF drawing file into “Ezilathe”.

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Showing Stuart Tankard, the author of Ezilathe, scrutinizing my drawing ….  and offering excellent suggestions for improvement using Ezilathe.

Then used Ezilathe to generate the G codes…..

Then to the CNC lathe…..

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CNC turning the finial in 51mm brass rod.  1600rpm, 100mm/min.  Controlled by Mach 3 Turn.  I removed the tailstock shortly after this photo was taken, to permit completion of the ball.

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Some GSMEE members watching the CNC turning.  I spent 3 days clearing up the workshop so the 16 members could fit in.   Amazing how much space was revealed in the workshop.   This is the Taiwanese lathe which I converted to CNC.  See old posts for details of the conversion.

I watched anxiously as the part was gradually revealed.  Admittedly, I had had a test run in wood to check the parameters, but this was the first run in metal.

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The finial.  The bar stock was parted later.

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Bookcase finally finished, after 30 years.

If you are interested in CNC lathe work, you should take a look at “Ezilathe”.  It is superb.

If you are on Facebook, (of course you are if you are reading this), you might like to take a look at the GSMEE Facebook site.

 

ACUTE TOOL SHARPENING at GEELONG MODEL ENGINEERS’ EXHIBITION

One of the tool displays at our exhibition last weekend (see previous post) was by ECCENTRIC ENGINEERING.  Eccentric Engineering is well known for the Diamond Tool Holder, which is a favourite lathe tool holder for most of us who use metal working lathes.

However I was more interested in Gary Sneezby’s (Owner-engineer of Eccentric) new tool, which is a tool sharpening system for use with a bench grinder, named “The Acute Tool Sharpening System”.

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Gary demonstrating the Acute Tool Sharpening System at the GSMEE exhibition.

 

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The Plans and assembly diagrams, in a bound booklet.

The system is available as a complete working unit, or a kit of semi machined parts and plans, or plans only.

See the Eccentric Engineering Website for a complete description of the system and prices.  eccentricengineering.com.au

I bought the kit of semi machined parts, and the booklet of plans.  Cost (show price, no postage) $AUD250.  This is an excellent price for the 50 or so laser cut parts, quality die cast handles, all fasteners, Allen keys, detailed plans.

 

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2 of the 33 pages of plans and diagrams.

The plans are excellent.  They are clear, easily read, and large.  There are no instructions, but a DVD is planned.  Gary is contactable by phone for construction advice, if needed.

After 4 half day workshop sessions I am well into the construction.  The laser cut parts are accurate within 1mm, and drilling points are accurately centre drilled.  Gary pointed out that the drilling points are more accurately positioned than the laser cut part perimeters.  That necessitates drilling centre holes (and the other holes) and using a mandrel to enable accurate turning of circular components.  He also advised that HSS cutters be used in preference to carbide tipped tools.

I found the parts to be very closely dimensioned to the finished parts.  The table top measures 150x150mm, and I found the flat hardened steel to be mildly bowed, to the extent of 0.38mm.  That is probably due to heat distortion from the laser cutter.      Some attention on the press straightened out the plate to less than 0.05mm bowing.   I might touch it up on the surface grinder, but that is probably unnecessary, given the way the system functions.

I had a machining accident with one part.  It is useable, but will need to be replaced.  I rang Gary, and the new part is in the mail.  Now that is service.

Progress to date….

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The sharpening system is starting to look serious.  It consists of a base, top plate which is adjustable for tilt and height, parallelogram arm, slide and toolholder.

 

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It looks interesting. Not sure how it works yet (Much clearer since watching the YouTube video at the end of this blog). Still some parts to be made-machined. The notch at the top is where the grinding wheel fits.

 

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The underside. Nice use of O rings to lock the adjustments into position. The cast handles are good quality.

 

Another session or two in the workshop should see this project completed.  I will report on how it performs  in a week or two.  I expect that it will be a lot quicker and simpler to use than the Quorn.

Watch the YouTube video by Gary to see how it works.

Der Tiger at Geelong Model Engineers

GSMEE (Geelong Society of Model and Experimental Engineers) had its annual exhibition at Osborne House, North Geelong last weekend.

Osborne House used to be Australia’s submarine headquarters, and it still houses a superb maritime museum.  It is also home to the Vietnam Veteran’s Association.  And other clubs such as GSMEE and The Camera Club.

We could not have asked for better weather.  Two glorious spring days.  With Corio Bay sparkling in the background.

And guarding the entrance of our exhibition was a WW2 German Tiger Tank.

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At 1/5 scale, weighing 1/4 tonne, powered by a 12 cylinder gasoline engine.

I have featured this machine before (see Bendigo exhibition).  It is still fascinating and awesome.

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Gerard Dean operating the controls, which are a close copy of the original, even down to the warning in German that “the enemy is listening”.

Gerard explained that the original was prone to engine overheating, gearbox grenading, transmission failure and track jamming.  His demonstration on Sunday was terminated by sudden graunching in the gearbox.  An authentic demonstration indeed.

Normally Gerard drives the tank up ramps onto his ute.   On this occasion we pushed it up.

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Do you imagine that he would get the odd double take as he drives home on the freeway?

Another outstanding exhibitor was John Ramm, with his scale Merlin engine, Volkswagen engine, and 7 cylinder radial aero engine.

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John Ramm’s Spitfire Merlin engine.  1/4 scale, 75cc.  Unfortunately I missed seeing it running.

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John Ramm’s 7 cylinder radial aero engine.

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John Ramms scale VW engine.  Said to be 75cc, but with VW who knows?

There were many other wonderful engines, model ships, planes, and workshop tools.  And an excellent trade display (thanks Ausee Tools).

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Peter Bodman’s self made 3D printer was busy making parts all weekend.  Many of the components of this printer were made on his previous Mark 1 printer.

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Willi Van Leeuwen had a lovely display of model ships and boats including this steam powered boat.

Last, and least, the Norm Hatherly Stirling Engine prize was won by yours Truly.

Prize Winning Hit and Miss Engine

This Hit and miss engine by Stuart won first prize at the Royal Geelong Show Model Engineering section.

Second prize to yours truly.

Model Bolton Beam Engine.

Model Bolton Beam Engine.

Model Marine Boiler and another Koffiekop.

At the recent Geelong Society of Experimental and Model Engineers (GSMEE) meeting, several interesting models were presented, including my Koffiekop engine.   And another Koffiekop, this one by Stuart T.

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Stuart T is an expert engineer and machinist. He CNC’d most of the components in his engine, and has enough spare parts to make another 6 of them. He says each part takes a couple of hours to draw and program, then 5 minutes of machining to spit out half a dozen.

Another most interesting model is the marine boiler by Rudy pictured below.  Rudy was a marine engineer, and some of his ships were steam powered.  This model is made from his memory of one of those.  The odd external shape is to conform with the ship’s hull, starboard (right hand) side.

Model ship's boiler. it is approx 300-400mm high. The fire box is stainless steel. The copper boiler and water tank and superheater were TIG welded. The water tubes are silver soldered.

Model ship’s boiler. it is approx 300-400mm high. The fire box is stainless steel. The copper boiler and water tank and superheater were TIG welded. The water tubes are silver soldered.

The water tubes, super heater and boiler.

The water tank, water tubes, super heater and boiler.

The water gauge was scratch built by Rudy. The pressure gauge was bought.

The water gauge was scratch built by Rudy. The pressure gauge was bought.

Not sure what these attachment points are called, but they look interesting coming off the hemispherical ends of the boiler.

Not sure what these attachment points are called, but they look interesting coming off the almost hemispherical ends of the boiler.

Rudy made the nameplate on an engraving machine, then formed the domed shape.

Rudy made the nameplate on an engraving machine, then formed the domed shape.

Rudy has pressure tested the boiler to 100psi.  He reckons that it would be good for 200psi.  He tested it with compressed air, submerged in a barrel of water.  That would show any leaks.  And if it did happen to blow, the force would be diffused by the water.

Koffiekop Engine

I have been busy for the past week or so making a Stirling cycle engine.  It is the Coffee Cup engine designed by Jan Ridders.  It is powered by the heat from a coffee cup of hot fluid.  Or an ice cube sitting on the top plate!

 

Page one of five of Jan Ridders excellent plans.

Page one of five of Jan Ridders’ excellent plans.

Most of the components of the coffee cup engine.

Most of the components of the coffee cup engine.

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100mm flywheel.

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Possible alternative flywheel, roughed out, I will see how it appears with a bit more finishing. Looks interesting?

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An experiment with engine turning on an aluminium surface, using a “Brownells Engine Turning Kit”, kindly loaned to me by Stuart.   The pattern is made with the spring loaded wire brush seen in the picture. I used this on the upper plate of the displacement cylinder.

Lots of tiny fiddly bits.

Lots of tiny fiddly bits.

The piston is made from graphite.  An interesting material to turn.  Surprisingly tough, accepting a 3mm internal thread.  And presumably self lubricating. Machining it produces black, pervasive dust.  SWMBO is not impressed, since my CNC lathe sits in our living room.   I might get marching orders for the lathe as a result of this one.

STUSSHED at GSMEE

Stuart of stusshed.com gave a most interesting talk at last nights GSMEE meeting.

GSMEE, in case you are not familiar, stands for Geelong Society of Model and Experimental Engineers.  A select group of people who are interested in things mechanical, electrical, steam, internal combustion, boats, etc.   Mainly metal working, but sometimes involving woodworking.

Stuart generously gave his time, and drove several hours to show us some of his projects, and tools which were new and unusual to most of us.

He explained how when he was a very small boy, an uncle disappeared into his workshop, and a short time later reappeared with a simple wooden puppet toy which he had quickly made, and presented to Stuart.  Stuart says that event made a lasting impression, and was influential in his decision to make things for himself, have his own workshop, and eventually to study mechanical engineering and have a career in engineering.  And ultimately to start the hugely successful blog, stusshed, which to date has had 2.6 million hits!

He showed the puppet, which he keeps as a memento in his workshop.

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To be honest, I had totally forgotten that I had made this, almost 40 years ago. The controlling strings did not survive.

Stuart then spoke briefly about his time in the navy, as an engine room engineer, running diesels, steam turbines, and gas turbines on frigates.  All too brief, and hopefully the subject of a more detailed presentation in future.

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He then showed some of his recent projects, some of which I snapped.  Especially noteworthy was the Sopwith Camel, with a discussion about the origin of the roundels, the through propellor firing machine guns, and the huge torque which the radial engine produced causing the plane turn more easily to the right than the left (or vice versa- I cannot remember)..

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Stuart recently acquired a CNC router, which he used to produce the inlayed roundels, and the engine details.

Quite a few other woodworking projects, mainly toys, but also some interesting furniture, including a chair made of interlocking strips of wood in the form of a tambour, as in a roll top desk tambour.  No photo unfortunately.

Then a small selection of tools from his incredibly well equipped workshop.  A few photos following.  I dont remember many of the brands and details, but most of these tools have been reviewed on Stuart’s blog, so check out stusshed.com if you need more info.

The Incra guides and measuring devices were particularly attractive

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Saw guide, with one degree stops, and microadjustment within the saw bench slot.

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An Incra ruler. Flexible enough to measure around a cylinder. The tiny holes accurately accept a 0.5mm pencil.

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I really liked this Incra protractor. 150mm wide, and also accepts a 0.5mm pencil for accurate angular marking out.

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Yet another Incra ruler. Sells for $22 in the USA. More like $50-60 here.

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One of Stuarts favourites.. a dovetailing jig, made in Australia, compares more than favourably with a Leigh jig he says.

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A really intriguing device for measuring saw blade kerf very accurately. Costs about $100.

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Another of Stuart’s favourites, and an Australian invention, Superjaws. I think that this one will go onto quite a few buying lists after this demo.

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Another Australian invention. This one for carrying panels.

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A really neat device for supporting cables, and small round garments.

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Another view of the kerf measuring device.

These are just a few of the many tools which Stuart had to show us.  2 hours went very quickly.  Thanks Stuart!

A JIG for Machining the columns of the triple expansion marine engine

At last!

A day on the steam engine.  SWMBO went to Melbourne to choose marble so I was free!!

After discussing my problems with machining the triple  expansion engine columns with the senior members of the GSMEE (Geelong Society of Model and Experimental Engineers),  I have machined a JIG to assist with this issue.

The JIG thickness is precisely the width between the columns (30.05mm).  It is made in 2 halves so I can bolt the columns from their critical surfaces which are the con rod slides.

I will use the CNC mill to drill the holes in the jig, and the matching columns, then finish milling the columns which are attached to the JIG.

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The jig for machining the columns. Not yet finished.

 

 

Bottom left is X=0, Y=0.  The photo shows the 4 countersunk M4 screws.

The holes will be centre drilled then through drilled 4mm. The columns will be drilled 3.3mm then m4 tapped.
Hopefully that will happen tomorrow if the workshop is not too hot.

You will see what I am intending with the next post.

GSMEE EXHIBITION 2

Wimshurst Electrostatic Generator, made by Peter Bodman.  Creates sparks up to 100mm long, which drill minute holes in interposed paper sheets.  No-one volunteered to ry it with a hand.

Wimshurst Electrostatic Generator, made by Peter Bodman. Creates sparks up to 100mm long, which drill minute holes in interposed paper sheets. No-one volunteered to try it with their own hand.

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Vacuum engine made by Peter Bodman.

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Awesome model of pre-dreadnaught ship circa 1902 “Preussen” made by Walter. It is approx 1 meter long, weighs 16kg, and is radio controlled. The 28cm gun turrets are also radio controlled, but do not (as far as I know) actually fire.  To the right is a model of Columbus’s “Santa Maria”.

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The detail in the model has to be seen to be believed.  Every plank of the decking is individually made and fitted.

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Walter showed us the inside construction, engines, and electronics. The model was made from a few old photographs, and simple side and top elevations.

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Hull with the superstructure removed

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A very old pressure gauge, restored so that the workings are displayed, to reveal how it works. By Stuart.

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This model boat was made by 8 year old Niall, with some supervision from his Dad, William. The gun is actually a radio controlled water cannon which fires up to 3 meters, to the wet surprise of some spectators. Niall and William both had a fantastic experience with this project.

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William with some of the wonderful boat and ship models which he (and Niall) have made in recent years.

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A model working ship steam engine and boiler, by Walter. Twin cylinder, double acting cylinders. This should be jewellery, worn around the neck of a beautiful woman.  OK, that is a little over the top, but you get the idea

 

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Close up of the marine engine by Walter

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Les Madden with his partly completed Atkinson Differential Engine Model, originally patented in 1887. The wooden model on the left was built by Les in attempt to figure out how it worked! He made the wooden parts to have aluminium castings made.

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Les Madden’s Differential engine.

18 radial cylinder aero engine, by John Ramm.  The hand carved propeller is approx 600mm long.

18 radial cylinder aero engine, by John Ramm. The hand carved propeller is approx 600mm long.

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Detail of the aero engine. John showed 3 aero engines. He is currently making a 12 cylinder Spitfire Merlin engine which he will have finished by the time of the 2015 exhibition.

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Stuart Tankard’s prize winning hit and miss engine, was running throughout the exhibition. 17.7cc, 4 stroke, 4:1 compression, running on gas.

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Close up detail of the hit and miss engine. A standard the rest of us can aim for.

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A vertical boiler made by Stuart Tankard

Thomas Lord in the cabin of his steam truck, giving some driving tips to Niall

Thomas Lord in the cabin of his steam truck, giving some driving tips to Niall

These photos are just a small fraction of the many model engines, ships, trains, tools and other projects created and displayed by members and friends of GSMEE.

GEELONG SOCIETY OF MODEL AND EXPERIMENTAL ENGINEERS ANNUAL EXHIBITION 1

Steam truck, built by Thomas Lord.  See following videos

Steam truck, built by Thomas Lord. See following videos

The GSMEE held its annual exhibition of projects by members and friends, on the weekend of 15-16 November 2014, at Osborne House, Swinburne Ave, Geelong North.
I will post some pictures and videos of some of the superb model engines, boats, ships, tools, aero engines, and even a full size road legal registered steam truck, pictured above. Due to the size of the files and the crap Internet connection available here, I will spread the post over several days.

To continue with the incredible steam truck, made over the past decade by Tom Lord, see the following videos.  (sorry, no luck with the upload. I will try again tomorrow)

 

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