Spline shaft

Spline shaft

This topic has 4 replies, 3 voices, and was last updated 8 September 2020 at 20:34 by Emgee.

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8 September 2020 at 19:21 #494751
Peter Simpson 1
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@petersimpson1
The clutch on my Boxford ME is acting up. I would like to make a new eccentric drive pin. The operating handle end of the drive pin is about 3/8" diameter but it has splines on it. Is it possible to to machine splines ?
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8 September 2020 at 19:21 #10433
Peter Simpson 1
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@petersimpson1
8 September 2020 at 19:24 #494752
old mart
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@oldmart
That depends whether you are lucky enough to also have a mill and a rotary table with a tailstock.
8 September 2020 at 19:31 #494754
Peter Simpson 1
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@petersimpson1
I do have a milling machine and a rotary table with an stock. What tool would I use in the milling machine ?
8 September 2020 at 20:34 #494761
Emgee
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@emgee
Peter, can you measure the angle of the splines, some are just cut with a 60 degree cutter, test with a 60 deg thread tool to see if it fits. If it does you will need to count the number of cuts to make and calculate the number of handle turns on your rotary table to use between cuts. One way to get the depth of cut is to measure with the blade end of a caliper across opposing grooves and then deduct that from the OD, divide by 2 to get the depth of cut.

You can buy various angle cutters or maybe make your own from a broken HSS centre drill/slot drill/milling cutter, fitted into a shank and held with a grub screw.
You would use this tool in a collet in the vertical spindle.

Emgee
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