TH2363: belt/chain replacement of standard gear spacing

	A	B	C	D	E	F	G	H	I	J	K	L
1	Triple Helix Robotics FRC 2636
2	N. Laverdure 26Nov18
3
4		as-designed c-c distance			1.803		http://www.wcproducts.net/how-to-gears/
5
6
7	#35 chain	pitch	0.375			max stretch		max extra length
8						-0.012		0.005
9
10		driven teeth	drive teeth	ratio	links	links are even?	nominal c-c	diff	too loose?	too tight?	sprockets are small enough?	design passes?
11		12	12	1.00	21	FALSE	1.688	-0.116	FALSE	TRUE	TRUE	FALSE
12		12	12	1.00	22	TRUE	1.875	0.072	TRUE	FALSE	TRUE	FALSE
13		15	12	0.80	23	FALSE	1.772	-0.031	FALSE	TRUE	FALSE	FALSE
14		15	12	0.80	24	TRUE	1.961	0.158	TRUE	FALSE	FALSE	FALSE
15
16	#25 chain	pitch	0.25			max stretch		max extra length
17						-0.018		0.005
18
19		driven teeth	drive teeth	ratio	links	links are even?	nominal c-c	diff	too loose?	too tight?	sprockets are small enough?	design passes?
20		16	16	1.00	30	TRUE	1.750	-0.053	FALSE	TRUE	TRUE	FALSE
21		16	16	1.00	31	FALSE	1.875	0.072	TRUE	FALSE	TRUE	FALSE
22		18	16	0.89	31	FALSE	1.748	-0.055	FALSE	TRUE	TRUE	FALSE
23		18	16	0.89	32	TRUE	1.873	0.070	TRUE	FALSE	TRUE	FALSE
24		22	16	0.73	33	FALSE	1.734	-0.069	FALSE	TRUE	TRUE	FALSE
25		22	16	0.73	34	TRUE	1.860	0.057	TRUE	FALSE	TRUE	FALSE
26		22	18	0.82	34	TRUE	1.743	-0.060	FALSE	TRUE	TRUE	FALSE
27		22	18	0.82	35	FALSE	1.868	0.065	TRUE	FALSE	TRUE	FALSE
28		22	22	1.00	36	TRUE	1.750	-0.053	FALSE	TRUE	FALSE	FALSE
29		22	22	1.00	37	FALSE	1.875	0.072	TRUE	FALSE	FALSE	FALSE
30		32	16	0.50	39	FALSE	1.760	-0.043	FALSE	TRUE	FALSE	FALSE
31		32	16	0.50	40	TRUE	1.893	0.090	TRUE	FALSE	FALSE	FALSE
32
33	HTD belt	pitch	0.197			max stretch		max extra length
34						-0.002		0.030
35
36		driven pulley teeth	drive pulley teeth	ratio	belt teeth	belt available as COTS?	nominal c-c	diff	too loose?	too tight?	pulleys are small enough?	design passes?
37		18	18	1.00	36		1.772	-0.031	FALSE	TRUE	TRUE	FALSE
38		18	18	1.00	37		1.870	0.067	TRUE	FALSE	TRUE	FALSE
39		24	18	0.75	39		1.762	-0.041	FALSE	TRUE	TRUE	FALSE
40		24	18	0.75	40		1.861	0.058	TRUE	FALSE	TRUE	FALSE
41		24	24	1.00	42		1.772	-0.031	FALSE	TRUE	TRUE	FALSE
42		24	24	1.00	43		1.870	0.067	TRUE	FALSE	TRUE	FALSE
43		30	18	0.60	42		1.731	-0.072	FALSE	TRUE	TRUE	FALSE
44		30	18	0.60	43	TRUE	1.831	0.028	FALSE	FALSE	TRUE	TRUE
45		30	18	0.60	44		1.932	0.129	TRUE	FALSE	TRUE	FALSE
46		30	24	0.80	45		1.762	-0.041	FALSE	TRUE	TRUE	FALSE
47		30	24	0.80	46		1.861	0.058	TRUE	FALSE	TRUE	FALSE
48		30	30	1.00	48		1.772	-0.031	FALSE	TRUE	FALSE	FALSE
49		30	30	1.00	49		1.870	0.067	TRUE	FALSE	FALSE	FALSE
50		36	18	0.50	46		1.781	-0.022	FALSE	TRUE	TRUE	FALSE
51		36	18	0.50	47		1.884	0.081	TRUE	FALSE	TRUE	FALSE
52		36	24	0.67	48		1.731	-0.072	FALSE	TRUE	FALSE	FALSE
53		36	24	0.67	49		1.831	0.028	FALSE	FALSE	FALSE	FALSE
54		36	24	0.67	50		1.932	0.129	TRUE	FALSE	FALSE	FALSE
55		42	18	0.43	49		1.704	-0.099	FALSE	TRUE	FALSE	FALSE
56		42	18	0.43	50		1.813	0.010	FALSE	FALSE	FALSE	FALSE
57		42	18	0.43	51		1.920	0.117	TRUE	FALSE	FALSE	FALSE
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