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Bugatti straight 8 cylinder with blower, design, 3D printed molds, castings , machining, assembly

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michelko

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Piston wrist pin
to make piston shafts I use inductively hardened shafts that are available from diameter 3mm (less than 1/8 inch) in inches from 1/4) the advantage is that the core is still soft, the outside is hardened and ground to h6 tol , is round, straight and cylindrical. to protect the cilinder wall i used teflon pads
the axes are used in linear motion technology ( https://www.thn.nl/files/stream/documents/THN-TS06-NL.pdf)
gr
Hi i also used these material for my bugatti piston pins.
You can turn them to length with hard alloy inserts,no need to grind.
Michael
 

Foketry

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Hi i also used these material for my bugatti piston pins.
You can turn them to length with hard alloy inserts,no need to grind.
Michael
Hi Michael
do you buy it in Holland or is there an online seller in Germany?
Is it possible to drill with normal HSS drills?
 

leerkracht

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Hello

These inductif hardened rods can be drilled with normal HSS drils ( i prefer HSS Co 5%) for lengtening i prefer grinding
 

michelko

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Hi Lules,
as leerkracht mentioned These rods can be drilled with hss. Thea just have an hardened survace aprox 05-1mm thick Maybe less.

Here i ordered mine if i remeber correct. You can get them in many numbers but not smaler than 3 or 4mm i guess.




 

michelko

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This is another source for the hardenend and Ground rods.


I usealy cut them Rough to length with an anglegrinder and then use a Carbide insert for turning to the exact length.

Michael
 
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Foketry

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This is another source for the hardenend and Ground rods.


I usealy cut them Rough to length with an anglegrinder and then use a Carbide insert for turning to the exact length.

Michael
Hi Michael
I found the same material from my usual supplier, near my house, I thought it was completely hardened and hard, but instead it is possible to drill in the center with HSS
Thank you for your suggestion
IMG_0533.JPG
 

michelko

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This is a cool idea withe the two side ball bearings.
Michael
 

Foketry

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Camshaft project , there are a double overhead camshaft
The square profile on each cam has the function of facilitating the timing, the hole is for spring pin
The shaft is 8 mm supported by 5 needle bearings


Albero camme.jpg
 
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