Manufacturing the donkey cart and ambulance
Practical Action
13. Next the 12 mm clearance holes in part E need to be extended into the
spokes. This can be done using a drill following the path of the holes in the tabs
(see pic 10).
14. Following this all parts need to be
deburred and left in a good condition
ready to be painted. The 12 mm bolts are
used to connect the spokes and the tabs
for extra strength and support. The wheels
can be painted and once dry the bearings
can be fitted.
60 mm
15. Finally suitable sized tires can be
pressed onto the wheels.
4. Manufacturing the Frame
Picture 10: A makeshift piller drill used
for drilling the holes in the spokes
4.1. Parts List
Part Material and Notes
No
off
A Mild Steel Tube
2
(main frame)
B Mild Steel Tube
2
(main frame)
C Mild Steel Right
2
Angle Section (sub
frame)
D Mild Steel Right
4
angle section (sub
frame support strap)
Length
(mm)
3000
Width or
cross
section
(mm)
550
1350 50 x 50
700 25.4 x
25.4 (1')
Depth /
Wall
Thicknes
s (mm)
1.5
1.5
3
Diameter
(mm)
External
50.8 (2')
External
50.8 (2')
1.5
4.2. Instructions
1. Hammer the ends of parts A and
B so they are oval in shape and
arrange them as in the diagram
(right) and weld in place.
Diagram 7. Plan view of frame
1800 mm
2. The next part to be made is the
axle support frame (part 3). Using
a hacksaw cut the angle iron along
the 6 dotted lines shown in
diagram 8 (Dimensions in mm).
8