4-Stroke engine with working valves
di Painterface91
File stampabili (15)
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stlValve.stl
1.1 Mo · 194 download
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stlCam_Cover.stl
2.4 Mo · 193 download
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stlPiston_Head_Male.stl
4 Mo · 191 download
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stlCam_Shaft.stl
3.1 Mo · 197 download
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stlPiston_Upper.stl
1.3 Mo · 191 download
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stlCrank_Case_Upper.stl
4.1 Mo · 193 download
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stlCrank_Case_Lower.stl
3.7 Mo · 191 download
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stlPlug.stl
125 Ko · 193 download
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stlPiston_Lower.stl
530 Ko · 192 download
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stlPiston_Head_Female.stl
4 Mo · 194 download
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stlTiming_Gear.stl
1.5 Mo · 194 download
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stlCylinder_Block.stl
6.3 Mo · 194 download
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stlValve_Spring.stl
4.5 Mo · 194 download
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stlCylinder_Head.stl
4.6 Mo · 195 download
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stlCrank_Shaft.stl
4.6 Mo · 193 download
Descrizione
I designed this simple engine to be used as an teaching example for how a 4-stroke engine works.
It has working pistons, timing gears and valves and requires no extra parts other than what you will print.
To assemble the model you need to print.
1x Crank Case Lower
1x Crank Case Upper
1x Crank Shaft
2x Piston Lower
2x Piston Upper
2x Piston Head Female
2x Piston Head Male
4x Timing Gear
2x Plugs
2x Cylinder Block
2x Cylinder Head
2x Cam Shaft
2x Cam Cover
4x Valve Spring (Print these as high a resolution as possible for you printer)
4x Valve (Print these as high a resolution as possible for you printer)
The whole model snaps together but I have found it is worth glueing some components otherwise it can fall apart when being turned, for my assembly I only glued the lower and upper pistons together around the crank shaft.
To assemble the model:
- Glue the upper and lower pistons around the two inner lugs of the crank shaft.
- Snap the male and female piston heads together around the top of piston uppers.
- Lay the crank shaft with pistons attached into crank case lower and snap the crank case upper over this to enclose it. Make sure to push the piston heads through the two piston recesses in crank case upper.
- Lay the first two timing gears into the recess on crank case upper.
- Press fit the cylinder block into crank case upper, enclosing the timing gears with the pistons inside the cylinder blocks.
- Fit the remaining timing gears into the slots in the side of the cylinder blocks and use the plugs to hold into place.
- Push the valve springs into the recesses within the cylinder head and attach in place by press fitting the valves to the end of the valve springs.
- Press fit the cylinder head to the top of the cylinder block.
- Lay the cam shaft into the cylinder head and fit in place using the cam cover.