Steam Engine Base Pattern

[doubleboost]

Hi
Lads
I have been wanting to make a horizontal steam engine for some time now
As i have a cylinder pattern from my marine engine i decided to make the engine around this
It will be a fairly big affair with no bolts smaller than M6
A simple L shaped pattern is needed for the base
In the past i have used MDF as pattern material
The dust from sanding and machining this horrible material has made me feel poorly on more than one occasion
Rob Wilson donated some Birch ply wood and i had some bits of old Oak shelving (Popper wood)


The basic shape glued together



Car body filler is used to blend curves


All internal corners need a nice smooth fillet ,in the past i used car body filler (easy to apply but hard work to sand off)
I bought some fillet wax (bees wax) this is blended in to the corners with a ball bearing on a stick.
Much easier and faster than body filler.


As you add more detail it starts to look something

The Grey bit will be hollow the rest is solid


A coat of high build primer transforms the pattern
John