by Fred Nelson
Steel steam punk desk lamp assembly
Don't' have the dxf file?
buy the dxf file now click here.
You may need to buy longer bolts if you can't
find the exact lengths outlined above.
Trim hardware to length as desired after
assembly. Buy matching nuts and plenty of washers for all bolts
Verify the scale. Depending on your software
the dxf file may or may not be the proper scale (especially if you
are converting to metric). See the image to the left. The largest
part is the 'main arm' and should be 18.1925 inches long if you have
the drawing scaled correctly (462.09 mm).
lever switch uses a common wall switch. The sides are inserted into
the switch plate then welded The
'pin' is a 1/4 inch bolt or you can use a fancy door hinge pin.
medium size gears (secondary gears) need to 'freewheel'.
How the gears work: The crank and internal
1 inch gear are welded to an axle bolt. The crank turns the lower
internal 1 inch gear which then drives the largest gear.
large gear and the two small external gears are welded to common
axle bolt. The large gear turns the 2 external small gears which
mesh with the medium size gears. The medium gears are NOT
welded to an axle and are allowed to "freewheel" on a bolt welded to
the man arm.
Weld 3/8 bolt(s) to the inside of the main
arm(s). The drive gear will freewheel on this bolt. Use a washer
between the main arm and the drive gear. Trim the bolt to length
lamp socket is a common ceramic socket. Remove the set screw.
Stack the round spacer plates and use a
short lamp nipple.
Small sections of tubing can replace stacks of
washer in these areas
Flat parts inventory
The above information should be enough to get you
started. Study all the
photos above and below carefully before beginning. Be advised,
we used several laser cut wood spacers in place of stacking washers... simply use a stack of washers in place
of any wood spacers you see in the photos.
style vintage bulb. Available at Home Depot.
DXF CNC Cutting files
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