jimmybondi
Well-Known Member
- Joined
- Oct 27, 2008
- Messages
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Hi,
now my next machine will grow.
normally i take some time until next build - but i got 2 flywheels - they have to be used .-)
and: some people want to see how i made such parts like cylinders - even without rotary or index table
first the difficult and long-machining part: the cylinder
a piece of dirty cast iron - everything but not angled nor straight
saw - mill - saw again - mill into a rectangular block:
the block has dimensions 42 x 44 x 50mm
takes nearly 1 hour :-(
then turning the bore and milling first side of "casting surface"
Tool: bull mill dia 5mm and corner radius 1,25mm
(normally i use ball end mill - but i don't have one long enough at the moment)
(last picture one and a half hour after beginning)
finish mill first side and rough second one:
(end of picture sequence after 3 hours)
now rest mill 2nd side, finish second and finish 3rd / 4th side
(3rd and 4th side don't get rough - they where processed on first two steps)
and finally got this on:
now the slots for valve face - pre-milled with 2mm endmill and finished with 0,8 carbide endmill:
result: a nearly casted looking cylinder:
the time to made it: roundabout 5 hours - maybe 6
hope that there came a litle bit light into what i'm doing
Frank
now my next machine will grow.
normally i take some time until next build - but i got 2 flywheels - they have to be used .-)
and: some people want to see how i made such parts like cylinders - even without rotary or index table
first the difficult and long-machining part: the cylinder
a piece of dirty cast iron - everything but not angled nor straight
saw - mill - saw again - mill into a rectangular block:
the block has dimensions 42 x 44 x 50mm
takes nearly 1 hour :-(
then turning the bore and milling first side of "casting surface"
Tool: bull mill dia 5mm and corner radius 1,25mm
(normally i use ball end mill - but i don't have one long enough at the moment)
(last picture one and a half hour after beginning)
finish mill first side and rough second one:
(end of picture sequence after 3 hours)
now rest mill 2nd side, finish second and finish 3rd / 4th side
(3rd and 4th side don't get rough - they where processed on first two steps)
and finally got this on:
now the slots for valve face - pre-milled with 2mm endmill and finished with 0,8 carbide endmill:
result: a nearly casted looking cylinder:
the time to made it: roundabout 5 hours - maybe 6
hope that there came a litle bit light into what i'm doing
Frank