Issue 4662, 9 April 2021

In this issue ...

Two of our contributors decide to machine parts from the solid rather than rely on castings – a set of connecting rods for an internal combustion engine and a set of locomotive cylinders.

Peter Seymour-Howell makes a set of leaf springs for the tender of his 5 inch gauge Flying Scotsman locomotive.
Luker uses his 3D printer to make patterns for casting a variety of locomotive parts.
D.A.G. Brown reviews Sharpening Common Workshop Tools by Dr. Marcus Bowman.
Norm Norton improves the platforms and platework on his rebuilt Modelworks 5 inch gauge Britannia locomotive and Doug Hewson presents the platework for his 5 inch gauge GWR pannier tank.
Roger Backhouse enjoys an engineer’s day out on the Isle of Wight Steam Railway, which celebrates its 50th Anniversary this year.
Peter Worden completes a set of connecting rods for his FOCAS engine by machining the small end bushes and big end bearing shells.
Wim Merks completes his account of a finite element analysis of a model steam boiler by looking at the stresses imposed on the boiler by hydrostatic pressure testing.
George Punter designs and builds an 150cc three cylinder petrol engine to power his 5 inch gauge Queensland DH class locomotive.
David Earnshaw bores the cylinder blocks for his 5 inch gauge Duchess locomotive.
Jason Ballamy presents a mill engine first described by S.L. Thompstone in Model Engineer 120 years ago.
 

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The MODEL ENGINEER COMPETITION
PLEASE NOTE: The current public health situation has made it impossible to hold the Competition as it was sadly not possible for the
National Model Engineering and Modelling Exhibition (the 'Doncaster show')
to go ahead as usual.

The 'benchmark' Model Engineer Competition featured, for the first time, at the National Model Engineering Exhibition held at Doncaster in April 2019. Just as in previous competitions, Gold, Silver and Bronze Medals were awarded, as were certificates for Very Highly Commended, Highly Commended and Commended entries. A selection of the usual trophies were also awarded.

The re-establishment of the competition was good news for Model Engineer, for the hobby and for the Doncaster show, so ...

YOU HAVE PLENTY OF TIME

to consider your entries for the 2022 Competition!