CNC Program #1 - Coupler Spider Size 50
The size 50 coupler spiders are now being made by many manufacturers both US and foreign. They are used with two other coupler halves to make a 3 piece flexible jaw coupling. Those you still have to purchase those because they are pretty cheap and made of sintered metal which is hard to reproduce in a small shop. You can vary your material that you make these form. We made ours form HDPE to have anti-backlash spiders.
(Program notes: written for EMC2, uses a 1/4" endmill, set to cut through 1/2" thick material, we leave a thin floor that can be trimmed out later so the part doesn't fly away during the final cuts, Speeds and feed were set for HDPE material with a conservative approach.)
%
N05 G01 G20 G40 G49 G90 X0.Y0.Z0. F10.
N10 G00 Z0.25000
N20 G00 X0.00000 Y0.48285
N30 G01 Z-0.10000 F3.00
N40 G01 X0.23897 Y0.61051 F14.00
N50 G03 X0.23897 Y0.68019 I-0.01861 J0.03484
N60 G01 X0.00000 Y0.80786
N70 G02 X0.48285 Y1.29071 I0.64535 J-0.16251
N80 G01 X0.61051 Y1.05174
N90 G03 X0.68019 Y1.05174 I0.03484 J0.01861
N100 G01 X0.80786 Y1.29071
N110 G02 X1.29071 Y0.80786 I-0.16251 J-0.64535
N120 G01 X1.05174 Y0.68019
N130 G03 X1.05174 Y0.61051 I0.01861 J-0.03484
N140 G01 X1.29071 Y0.48285
N150 G02 X0.80786 Y0.00000 I-0.64535 J0.16251
N160 G01 X0.68019 Y0.23897
N170 G03 X0.61051 Y0.23897 I-0.03484 J-0.01861
N180 G01 X0.48285 Y0.00000
N190 G02 X0.00000 Y0.48285 I0.16251 J0.64535
N200 G01 Z-0.20000 F3.00
N210 G01 X0.23897 Y0.61051 F14.00
N220 G03 X0.23897 Y0.68019 I-0.01861 J0.03484
N230 G01 X0.00000 Y0.80786
N240 G02 X0.48285 Y1.29071 I0.64535 J-0.16251
N250 G01 X0.61051 Y1.05174
N260 G03 X0.68019 Y1.05174 I0.03484 J0.01861
N270 G01 X0.80786 Y1.29071
N280 G02 X1.29071 Y0.80786 I-0.16251 J-0.64535
N290 G01 X1.05174 Y0.68019
N300 G03 X1.05174 Y0.61051 I0.01861 J-0.03484
N310 G01 X1.29071 Y0.48285
N320 G02 X0.80786 Y0.00000 I-0.64535 J0.16251
N330 G01 X0.68019 Y0.23897
N340 G03 X0.61051 Y0.23897 I-0.03484 J-0.01861
N350 G01 X0.48285 Y0.00000
N360 G02 X0.00000 Y0.48285 I0.16251 J0.64535
N370 G01 Z-0.30000 F3.00
N380 G01 X0.23897 Y0.61051 F14.00
N390 G03 X0.23897 Y0.68019 I-0.01861 J0.03484
N400 G01 X0.00000 Y0.80786
N410 G02 X0.48285 Y1.29071 I0.64535 J-0.16251
N420 G01 X0.61051 Y1.05174
N430 G03 X0.68019 Y1.05174 I0.03484 J0.01861
N440 G01 X0.80786 Y1.29071
N450 G02 X1.29071 Y0.80786 I-0.16251 J-0.64535
N460 G01 X1.05174 Y0.68019
N470 G03 X1.05174 Y0.61051 I0.01861 J-0.03484
N480 G01 X1.29071 Y0.48285
N490 G02 X0.80786 Y0.00000 I-0.64535 J0.16251
N500 G01 X0.68019 Y0.23897
N510 G03 X0.61051 Y0.23897 I-0.03484 J-0.01861
N520 G01 X0.48285 Y0.00000
N530 G02 X0.00000 Y0.48285 I0.16251 J0.64535
N540 G01 Z-0.40000 F3.00
N550 G01 X0.23897 Y0.61051 F14.00
N560 G03 X0.23897 Y0.68019 I-0.01861 J0.03484
N570 G01 X0.00000 Y0.80786
N580 G02 X0.48285 Y1.29071 I0.64535 J-0.16251
N590 G01 X0.61051 Y1.05174
N600 G03 X0.68019 Y1.05174 I0.03484 J0.01861
N610 G01 X0.80786 Y1.29071
N620 G02 X1.29071 Y0.80786 I-0.16251 J-0.64535
N630 G01 X1.05174 Y0.68019
N640 G03 X1.05174 Y0.61051 I0.01861 J-0.03484
N650 G01 X1.29071 Y0.48285
N660 G02 X0.80786 Y0.00000 I-0.64535 J0.16251
N670 G01 X0.68019 Y0.23897
N680 G03 X0.61051 Y0.23897 I-0.03484 J-0.01861
N690 G01 X0.48285 Y0.00000
N700 G02 X0.00000 Y0.48285 I0.16251 J0.64535
N710 G01 Z-0.48500 F3.00
N720 G01 X0.23897 Y0.61051 F14.00
N730 G03 X0.23897 Y0.68019 I-0.01861 J0.03484
N740 G01 X0.00000 Y0.80786
N750 G02 X0.48285 Y1.29071 I0.64535 J-0.16251
N760 G01 X0.61051 Y1.05174
N770 G03 X0.68019 Y1.05174 I0.03484 J0.01861
N780 G01 X0.80786 Y1.29071
N790 G02 X1.29071 Y0.80786 I-0.16251 J-0.64535
N800 G01 X1.05174 Y0.68019
N810 G03 X1.05174 Y0.61051 I0.01861 J-0.03484
N820 G01 X1.29071 Y0.48285
N830 G02 X0.80786 Y0.00000 I-0.64535 J0.16251
N840 G01 X0.68019 Y0.23897
N850 G03 X0.61051 Y0.23897 I-0.03484 J-0.01861
N860 G01 X0.48285 Y0.00000
N870 G02 X0.00000 Y0.48285 I0.16251 J0.64535
N880 G00 Z0.25000
N890 G00 X0.00000 Y0.00000
N900 G01 G90 X0. Y0. Z0. F5
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