Stearman build

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1 year 11 months ago #26381 by kevinross
Replied by kevinross on topic Stearman build
Picked up the plugs from the body shop last week after a few heavy coats of 2 pack primer. Now cut back, polished and ready for using to make the molds.
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1 year 10 months ago #26430 by kevinross
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The basic kit design has no provision to secure wheel spats so have made these adapters ( some reshaping and lightening still to do) - Commercial products would not secure the spats in the correct position 

 
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1 year 10 months ago #26431 by kevinross
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The mounting plates were fabricated by cross drilling at the 25deg  

The sleeves were set at 25 deg by supergluing a couple of 15mm gland nuts on a fire clay baked up with sone tile cement. 
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1 year 10 months ago #26434 by JRI
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Please explain cross-drilling. If I tried to get that angle the drill would wander (or did you glue it to a wooden block and drill through the block)?
 

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1 year 10 months ago #26435 by 4Pedalsfly
Replied by 4Pedalsfly on topic Stearman build
Hi John - Slot in wooden block is at 25 degrees into which plates are are a tight fit.
Drill guide hole in block at 90 degrees - plate held captive so drill cannot wander.
Yorkshire Tea is essential for such projects. !!
Regards
Colin.A
 

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1 year 10 months ago #26436 by kevinross
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I have many tools and machines but not one of everything so have to adapt tasks to the tools i do have. 

Drilled thru the wood block and plates with a 4mm drill followed by a 6mm as a prerequisite to boring thru with the my most suitable end mill (14mm) in the milling machine. (because end mills cant bore within  their centres) 

Finally i opened the bore to match the 15mm tube using and expanding reamer 
 
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