| Snàthainn sgriubha d | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | ||||
| P | Pairc | Snàithlean garbh | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 | ||
| Snàithlean grinn - 1 | / | / | 1 | 1.25 | 1.5 | 1.5 | 1.5 | 1.5 | ||||
| Snàithlean grinn - 2 | / | / | / | 1 | 1.25 | / | / | / | ||||
| b | ≤125 | 16 | 18 | 22 | 26 | 30 | 34 | 38 | 46 | |||
| 125＜L≤200 | / | / | 28 | 32 | 36 | 40 | 44 | 52 | ||||
| L 200 | / | / | / | / | / | / | 57 | 65 | ||||
| c | min | 1 | 1.1 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 3 | |||
| da | Foirm A | max | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 | ||
| Foirm B | max | 6.2 | 7.4 | 10 | 12.6 | 15.2 | 17.7 | 20.7 | 25.7 | |||
| dc | max | 11.8 | 14.2 | 18 | 22.3 | 26.6 | 30.5 | 35 | 43 | |||
| ds | max | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | |||
| min | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 | ||||
| du | max | 5.5 | 6.6 | 9 | 11 | 13.5 | 15.5 | 17.5 | 22 | |||
| dw | min | 9.8 | 12.2 | 15.8 | 19.6 | 23.8 | 27.6 | 31.9 | 39.9 | |||
| e | min | 8.71 | 10.95 | 14.26 | 16.5 | 17.62 | 19.86 | 23.15 | 29.87 | |||
| f | max | 1.4 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | |||
| k | max | 5.4 | 6.6 | 8.1 | 9.2 | 11.5 | 12.8 | 14.4 | 17.1 | |||
| k1 | min | 2 | 2.5 | 3.2 | 3.6 | 4.6 | 5.1 | 5.8 | 6.8 | |||
| r1 | min | 0.25 | 0.4 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 | |||
| r2 | max | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.9 | 1 | 1.2 | |||
| r3 | min | 0.1 | 0.1 | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 | 0.4 | |||
| r4 | ≈ | 3 | 3.4 | 4.3 | 4.3 | 6.4 | 6.4 | 6.4 | 8.5 | |||
| s | max = meud ainmichte | 8 | 10 | 13 | 15 | 16 | 18 | 21 | 27 | |||
| min | 7.78 | 9.78 | 12.73 | 14.73 | 15.73 | 17.73 | 20.67 | 26.67 | ||||
| t | max | 0.15 | 0.2 | 0.25 | 0.3 | 0.35 | 0.45 | 0.5 | 0.65 | |||
| min | 0.05 | 0.05 | 0.1 | 0.15 | 0.15 | 0.2 | 0.25 | 0.3 | ||||
Carson a tha e sia-thaobhach, chan e eile?
Bidh a leithid de cheist aig mòran dhaoine, carson a bu chòir am bolt a dhealbhadh ann an cumadh sia-thaobhach?Agus chan e feadhainn eile?Tha hexagon mar thoradh air co-rèiteachadh eadar fad taobh agus ceàrn toinneamh.
Airson boltaichean le faid taobh neònach, chan eil dà thaobh an t-sròin co-shìnte.A bharrachd air an sin, anns na làithean tràtha, cha robh ann ach wrenches fork, agus bha a’ mhòr-chuid de na cinn wrench ann an cumadh trombaid, agus mar sin cha robh wrenches freagarrach airson gineadh cumhachd.A bharrachd air an sin, tha an ceàrn toinneamh cuideachd na fheart cudromach airson beachdachadh.Mas e ceithir oisean a th’ ann, feumar an sreang a thionndadh 90 ceum gus na sgriothan a chàradh, rud a tha mì-fhàbharach airson a chuir a-steach ann an àite cumhang;Ma tha e ochd-taobhach no decagonal, ged a tha an ceàrn toinnte a 'fàs nas lugha, tha an fhorsa beag cuideachd, agus tha e furasta a chuairteachadh.
Mar sin, tha cumadh heicseagag na roghainn cumanta airson boltaichean.
