Monday, 25 April 2016

buckminsterfullerene / buckyball / football / soccer ball

knit a 3-D shape 
buckminster fullerene : molecule of Carbon 60 (chemistry)
bucky-ball : truncated icosahedron (mathematics)
soccer football for the world cup




twenty 6-sided hexagons (white)   
twelve 5-sided pentagons (red)



bucky ball net

 

materials 
set of 4 double ended sock needles size 3.75mm (uk9 us5)
100g white wool double knitting 
50g  red wool double knitting
needle to sew up
balloon / or stuffing

size
finished ball measures 7"-8" (18-20 cm) across & 23"-25" (59-64cm) round 
(depending on how hard you stuff it!)

each (red) pentagon is 2.5" high (6cm) & 2.5" at widest point

each (white) hexagon is 3"(7.5cm) high & 2.5"(6cm) across

(easy to make the ball bigger : add extra rounds to each shape )


32 separate shapes 
each knitted out from the centre 
on 4 double-ended sock needles 
sewn together 

6-sided shapes have equal number of stitches on each needle
continue until 18 stitches on each needle
 
5-sided shapes have half as many stitches on one of the needles 
(10 stitches : 4 on 1st needle, 2 on 2nd needle, 4 on 3rd)
continue until 18 stitches on 2 needles 
and 9 stitches on other needle 
 


hexagon (make 20)

 

 

using white wool and 4 sock needles

               cast on 3 stitches 
row 1      increase into each stitch                       6sts
row 2      increase into each stitch                      12sts

               divide onto 3 needles  
                   and continue in the round 

round 1  (increase 1 k1) to end                         18st
round 2  (increase 1 k2) to end                         24st
round 3  (increase 1 k3) to end                         30st
round 4  (increase 1 k4) to end                         36st
round 5  (increase 1 k5) to end                         42st
round 6  (increase 1 k6) to end                         48st
round 7  (increase 1 k7) to end                         54st
               cast off  


pentagon (make 12)

 

using red wool and 4 needles

               cast on 3 stitches 
row 1      increase 1;  knit 1;  increase 1              5sts
row 2      increase into each stitch                      10sts

               divide onto 3 needles  (4,2,4)
                 and continue in the round

round 1  (increase 1 k1) to end                         15st   (6,3,6)
round 2  (increase 1 k2) to end                         20st   (8,4,8)
round 3  (increase 1 k3) to end                         25st   (10,5,10)
round 4  (increase 1 k4) to end                         30st   (12,6,12)
round 5  (increase 1 k5) to end                         35st   (14,7,14)
round 6  (increase 1 k6) to end                         40st   (16,8,16)
round 7  (increase 1 k7) to end                         45st   (18,9,18)
               cast off  



take 1 of the red pentagons  
and  sew 1 white hexagon to each of its edges 
and sew the 5 seams where the hexagons meet 

continue adding shapes following the diagram ("net")



each red is surrounded by 5 white hexagons



each white is surrounded by 3 white hexagons and 3 red pentagons
 





leave a large enough hole to add stuffing
sew together remaining edges

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