Feeds and Speeds - Shopbot Bitraf

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O
1	Bit source	Mill shape	Flutes	Knife length (mm)	Spindle speed (RPM)	Stock	Finish	Diameter (mm)	Width of cut (stepover) (mm)	Max pass depth at this feed (mm)	Feed (mm/s)	Material removal rate mm^3/s	Moment arm	"Tool strain"	Comment
2	Bitraf VHF	End mill	1	20	18000	Birch plywood	Decent	6	6	18.6	34	3794	15.7	59572
3	Bitraf VHF	End mill	1	20	18000	Valchromat	Decent	6	6	19.6	29	3410	15.2	51838
4	Bitraf VHF	End mill	1	20	18000	Birch plywood	Decent	6	6	10	43	2580	20	51600
5	Bitraf VHF	End mill	1	20	18000	Valchromat	Decent	6	6	10	38	2280	20	45600
6	Bitraf VHF	End mill	1	10	18000	Valchromat	Decent	3	3	8.6	13	335
7	Bitraf VHF	End mill	1	20	18000	Birch plywood	Decent	6	3	5	48	720	22.5	16200
8	Bitraf VHF	End mill	1	20	18000	Valchromat	Decent	6	3	5	43	645	22.5	14513
9	Bitraf VHF	End mill	1	20	18000	Birch plywood	Good	6	1	5	81	405	22.5	9113
10	Bitraf VHF	End mill	1	10	18000	Valchromat	Decent	3	3	5	15	225
11	Bitraf VHF	End mill	1	5	18000	Valchromat	Decent	6	3	5	71	1065	7.5	7988
12	Bitraf VHF	End mill	1	20	18000	Valchromat	Good	6	1	5	71	355	22.5	7988
13	Bitraf VHF	End mill	1	5	18000	Valchromat	Good	6	1	5	119	595	7.5	4463
14	Bitraf VHF	End mill	1	10	18000	Valchromat	Decent	3	1.5	3	17	77
15	Bitraf VHF	End mill	1	10	18000	Valchromat	Good	3	0.5	3	28.5	43
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17	Instructions:
18	Use the filters to find the bit diameter you want and the material you will mill
19	Valchromat settings will work fine for Birch plywood
20	It is risk free to use a lower pass depth than the max specified here.
21	The max feed possible with the shopbot is 300 mm/s (18000mm/min)
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