The rods ready for second phase, 2 holes for M4 screws
there are only 7 because one is already installed on the crankshaft
there are only 7 because one is already installed on the crankshaft
Bugatti straight 8 cylinder with blower, design, 3D printed molds, castings , machining, assembly
- Thread starter Foketry
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Really nice looking rods. Too bad they wont be seen.
Do you make a finished rod first, before starting on the "serial production"?
I did most parts that way for my radial.
My grandson has a very piston shaped money box, which was my first attempt and taught me to check wall thickness before machining!
I did most parts that way for my radial.
My grandson has a very piston shaped money box, which was my first attempt and taught me to check wall thickness before machining!
yes , I made 2 finished rods before producing all 8. This is to test the CNC program, assembly on the motor and theoretical compression with a false piston
The finished rods
Milling on the other side
Today I finished the pistons, wrist pins, bushings for connecting rods and bronze washers for pins
The wrist pin
Bronze bushing
I turned the pistons from aluminum bar 7075 (Ergal)
in the photo the double turned pistons
in the photo the double turned pistons
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internal milling of the double pistons and the pistons separated after milling
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drilling the wrist pin hole
the finished pistons and their accessories
piston rings are commercial, diameter 26 mm (1,023 inch)
the pins are made of hardened commercial pins, it is not possible to drill inside, only turning at the ends for the required length
piston rings are commercial, diameter 26 mm (1,023 inch)
the pins are made of hardened commercial pins, it is not possible to drill inside, only turning at the ends for the required length
What are the brass / bronze washer for?
Ah - buttons (as I know them).
leerkracht
Active Member
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
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
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this material is interesting, there‘s no technical information regarding the internal hardness but it seems possible to make longitudinal holes to lighten the wrist pin
I'm looking for it in Italy, thanks for the suggestion
I'm looking for it in Italy, thanks for the suggestion
leerkracht
Active Member
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