week 2 challange

https://drive.google.com/open?id=1rR1YQ26u4xNCeglHWgC9OWB2X9NS5prD

oiltank - firstly i made the sketch where i used line command and dynamic mirror entitities and how to use sketch point.after this i extruded the sketch in both directions with certain dimensions.then in the other plane i again sketch the part where i give angle relation between lines and also used spline command.then i extruded the sketch again throgh all in both directions.then i used the combine command and apperance siana.in the next step i used fillet command and changed the appearance of fillet.in the end i used shell command to make the tank hollow from inside without selecting any face.the preview of shell command i seen in the section view.

chain - firstly i made the sketch and exit it.then on the same plane i made chain links that i saved as chain blocks.then i inserted both the blocks saved as chain links and extruded them seperately.in first part i extruded pins through midplane and apply fillet on it and in the next extrude i select the outer plate and offset them and then inner plate and extrude it through vertex.then i used the curve driven pattern in the linear pattern option.then i again select the sketch option on same plane inserted the blocks and extrude them and used curve driven pattern.again i follow the same process.side by side in the solidbodies i organised my pins and plates.in the last at upper spracket i deletd the inner plate and used sketch on the same plane and used convert entities and slot command and extrude it.then in the last i used mirror command.

pedal - primarily i sketch the part using line,circles,spline and 3point arc.here i used the fillet in the sketch then i extruded the sketch two times with the selected conotur entities as required.then again i sketch and used the revolve and dome command.then i extruded sketch again and used chamfer command and fillet.then i used the offset command and extrude and fillet and then linear pattern command.in the last i again used fillet.