Geometric walker

Dongrays → bTd → bookmarks → geometric walker

Plot in 15° steps at 15/100 seconds delay (24 frames in 3.6 sec)
using: r=30 a=160 b=160 c=160 d=80 e=80 f=80 g=160

Warning: It is possible to collapse the framework with bad lengths.
When this happens the animation is colored:
• orange/yellow: when the e/f parallelogram becomes inverted
• red: some lengths do not reach (and cannot be plotted)

Raw data values of points of framework

Crank angle	Points (0,0 is center of crank)
Crank angle	A	B	C	D	E	F	G
0	`168.85,-79.51`	`168.85,79.51`	`160.00,0.00`	`30.00,0.00`	`239.51,8.85`	`248.36,88.36`	`151.15,238.53`
15	`162.79,-79.95`	`172.21,79.06`	`160.00,0.00`	`28.98,7.76`	`239.95,2.79`	`252.17,81.85`	`166.63,238.96`
30	`154.85,-79.83`	`172.62,79.00`	`160.00,0.00`	`25.98,15.00`	`239.83,-5.15`	`252.46,73.84`	`182.93,238.67`
45	`146.11,-78.79`	`170.28,79.34`	`160.00,0.00`	`21.21,21.21`	`238.79,-13.89`	`249.07,65.45`	`198.05,236.91`
60	`137.62,-76.81`	`165.68,79.80`	`160.00,0.00`	`15.00,25.98`	`236.81,-22.38`	`242.48,57.42`	`210.44,233.41`
75	`130.06,-74.19`	`159.41,80.00`	`160.00,0.00`	`7.76,28.98`	`234.19,-29.94`	`233.60,50.06`	`219.29,228.37`
90	`123.81,-71.35`	`152.11,79.61`	`160.00,0.00`	`0.00,30.00`	`231.35,-36.19`	`223.46,43.42`	`224.49,222.30`
105	`118.98,-68.68`	`144.39,78.46`	`160.00,0.00`	`-7.76,28.98`	`228.68,-41.02`	`213.07,37.44`	`226.44,215.82`
120	`115.55,-66.52`	`136.79,76.56`	`160.00,0.00`	`-15.00,25.98`	`226.52,-44.45`	`203.31,32.11`	`225.69,209.59`
135	`113.51,-65.10`	`129.80,74.08`	`160.00,0.00`	`-21.21,21.21`	`225.10,-46.49`	`194.90,27.59`	`222.79,204.29`
150	`112.81,-64.60`	`123.78,71.33`	`160.00,0.00`	`-25.98,15.00`	`224.60,-47.19`	`188.38,24.14`	`218.15,200.53`
165	`113.48,-65.08`	`118.97,68.68`	`160.00,0.00`	`-28.98,7.76`	`225.08,-46.52`	`184.05,22.16`	`212.02,198.84`
180	`115.53,-66.50`	`115.53,66.50`	`160.00,0.00`	`-30.00,0.00`	`226.50,-44.47`	`182.03,22.03`	`204.47,199.50`
195	`118.97,-68.68`	`113.48,65.08`	`160.00,0.00`	`-28.98,-7.76`	`228.68,-41.03`	`182.16,24.05`	`195.53,202.44`
210	`123.78,-71.33`	`112.81,64.60`	`160.00,0.00`	`-25.98,-15.00`	`231.33,-36.22`	`184.14,28.38`	`185.26,207.26`
225	`129.80,-74.08`	`113.51,65.10`	`160.00,0.00`	`-21.21,-21.21`	`234.08,-30.20`	`187.59,34.90`	`173.91,213.26`
240	`136.79,-76.56`	`115.55,66.52`	`160.00,0.00`	`-15.00,-25.98`	`236.56,-23.21`	`192.11,43.31`	`161.96,219.64`
255	`144.39,-78.46`	`118.98,68.68`	`160.00,0.00`	`-7.76,-28.98`	`238.46,-15.61`	`197.44,53.07`	`150.19,225.60`
270	`152.11,-79.61`	`123.81,71.35`	`160.00,0.00`	`-0.00,-30.00`	`239.61,-7.89`	`203.42,63.46`	`139.58,230.57`
285	`159.41,-80.00`	`130.06,74.19`	`160.00,0.00`	`7.76,-28.98`	`240.00,-0.59`	`210.06,73.60`	`131.24,234.18`
300	`165.68,-79.80`	`137.62,76.81`	`160.00,0.00`	`15.00,-25.98`	`239.80,5.68`	`217.42,82.48`	`126.26,236.40`
315	`170.28,-79.34`	`146.11,78.79`	`160.00,0.00`	`21.21,-21.21`	`239.34,10.28`	`225.45,89.07`	`125.55,237.46`
330	`172.62,-79.00`	`154.85,79.83`	`160.00,0.00`	`25.98,-15.00`	`239.00,12.62`	`233.84,92.46`	`129.60,237.83`
345	`172.21,-79.06`	`162.79,79.95`	`160.00,0.00`	`28.98,-7.76`	`239.06,12.21`	`241.85,92.17`	`138.36,238.08`

min	`112.81`	`112.81`	`160.00`	`-30.00`	`224.60`	`182.03`	`125.55`
max	`172.62`	`172.62`	`160.00`	`30.00`	`240.00`	`252.46`	`226.44`
diff	`59.81`	`59.81`	`0.00`	`60.00`	`15.40`	`70.43`	`100.89`
min	`-80.00`	`64.60`	`0.00`	`-30.00`	`-47.19`	`22.03`	`198.84`
max	`-64.60`	`80.00`	`0.00`	`30.00`	`12.62`	`92.46`	`238.96`
diff	`15.40`	`15.40`	`0.00`	`60.00`	`59.81`	`70.43`	`40.12`

Dongrays → bTd → bookmarks → geometric walker