Machining A Replacement Pulley With A Keyway
Machining A Replacement Pulley With A Keyway, by Clickspring.\r
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In this video, I machine a replacement pulley for my 1 Delta belt sander. This is a perfect mini lathe project, with some interesting turning between centers, as well as the formation of a keyway using the lathe as a manual shaper.\r
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Be sure to use breathing protection whenever using heat to break a super glue bond.\r
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You can download the dimensioned drawing for this particular pulley for free from the Clickspring website:\r
\r
Metric: \r
Inch: \r
\r
Thanks for watching. If you enjoyed the video please give a thumbs up, and leave me a comment.\r
\r
If you would like to help support the creation of these videos, then head on over to the Clickspring Patreon page: \r
\r
For more info on this build, as well as other tool making info and plans, visit \r
\r
Other Videos to Watch:\r
\r
How To Make A Clock In The Home Machine Shop - Part 4 - Cutting The Wheels\r
\r
\r
How To Make A Clock In The Home Machine Shop - Part 5 - Cutting The Pinions \r
\r
\r
Ask Me A Question:\r
\r
\r
Follow Clickspring:\r
\r
\r
\r
\r
\r
\r
\r
Language Credits:\r
Portuguese subtitles courtesy of Emanuel Mendes\r
\r
Transcript:\r
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00:50 The second is the v-groove for the belt. Its has a 30 degree included angle, and not very deep, so Ill form that with the lathe compound. And lastly, theres the set screw hole, which Ill do on the mill. If youd like to know the dimensions, Ive put a link to some free drawings in the description box below.\r
01:07 These are the materials Ill be using for the job. Ive got this excellent little piece of aluminium thats a left over from another project, although its a bit too short for chucking, so Im going to turn it between centers to form the features. So that means I need an arbor, and Ive have this nice length of silver steel for that.\r
01:40 The arbor needs centers on each end, so I set it to run true in a 4 jaw chuck, and then faced and center drilled the ends. Next I drilled and then reamed the slug of aluminium to match the outside diameter of the arbor.\r
02:35 The work is a nice close fit on the arbor, so a small amount of the glue is enough to hold it firmly in place for the rest of the job provided I dont let the heat from the cutting, build up too much. I formed a temporary center from some hex stock, and then set up the lathe for turning between centers.\r
03:46 Next I formed the basic profile of the part. Id like a nice generous fillet in the corner for strength, so Ive ground quite a large radius on the cutting tool. a lot of cutter cont when its right in the corner, but a shallow depth of cut It means theres made the chatter quite manageable.\r
04:24 Then I set the compound over to 15 degrees to cut the flanks of the groove. Ive ground this narrow, blunt nosed cutting tool to do the cutting. It can cut on both sides of the tool, which is going to be handy in this case, to get a matching surface at the bottom of the pulley groove.\r
05:43 The facing cuts didnt quite get to the arbor, so theres a small burr at each end of the hole to take care of. I used this hand held countersink to knock them off. So with the profile complete, its time to sort out the keyway.\r
06:37 I started by feeding in 2 thousandths with each pass to begin with, but as the cut became more established, I had to reduce that to a half thou per cut, and make 3 passes at each depth. I found that any more than that put too much strain on the carriage wheel.\r
07:11 The cutting ion is not unlike that of a\r
shaper; it makes similar looking chips. And it generates quite a clean cut. So with the keyway finished, the pulley is almost complete; It just needs a quick trip to the mill to drill and tap a hole for a set screw.\r
\r
References:\r
MACHINE SHOP TIPS #151 Cutting a Keyway on the Lathe - a new abroach tubalcain\r
\r
\r
Machining A Replacement Pulley With A Keyway, by Clickspring.
\r
In this video, I machine a replacement pulley for my 1 Delta belt sander. This is a perfect mini lathe project, with some interesting turning between centers, as well as the formation of a keyway using the lathe as a manual shaper.\r
\r
Be sure to use breathing protection whenever using heat to break a super glue bond.\r
\r
You can download the dimensioned drawing for this particular pulley for free from the Clickspring website:\r
\r
Metric: \r
Inch: \r
\r
Thanks for watching. If you enjoyed the video please give a thumbs up, and leave me a comment.\r
\r
If you would like to help support the creation of these videos, then head on over to the Clickspring Patreon page: \r
\r
For more info on this build, as well as other tool making info and plans, visit \r
\r
Other Videos to Watch:\r
\r
How To Make A Clock In The Home Machine Shop - Part 4 - Cutting The Wheels\r
\r
\r
How To Make A Clock In The Home Machine Shop - Part 5 - Cutting The Pinions \r
\r
\r
Ask Me A Question:\r
\r
\r
Follow Clickspring:\r
\r
\r
\r
\r
\r
\r
\r
Language Credits:\r
Portuguese subtitles courtesy of Emanuel Mendes\r
\r
Transcript:\r
\r
00:50 The second is the v-groove for the belt. Its has a 30 degree included angle, and not very deep, so Ill form that with the lathe compound. And lastly, theres the set screw hole, which Ill do on the mill. If youd like to know the dimensions, Ive put a link to some free drawings in the description box below.\r
01:07 These are the materials Ill be using for the job. Ive got this excellent little piece of aluminium thats a left over from another project, although its a bit too short for chucking, so Im going to turn it between centers to form the features. So that means I need an arbor, and Ive have this nice length of silver steel for that.\r
01:40 The arbor needs centers on each end, so I set it to run true in a 4 jaw chuck, and then faced and center drilled the ends. Next I drilled and then reamed the slug of aluminium to match the outside diameter of the arbor.\r
02:35 The work is a nice close fit on the arbor, so a small amount of the glue is enough to hold it firmly in place for the rest of the job provided I dont let the heat from the cutting, build up too much. I formed a temporary center from some hex stock, and then set up the lathe for turning between centers.\r
03:46 Next I formed the basic profile of the part. Id like a nice generous fillet in the corner for strength, so Ive ground quite a large radius on the cutting tool. a lot of cutter cont when its right in the corner, but a shallow depth of cut It means theres made the chatter quite manageable.\r
04:24 Then I set the compound over to 15 degrees to cut the flanks of the groove. Ive ground this narrow, blunt nosed cutting tool to do the cutting. It can cut on both sides of the tool, which is going to be handy in this case, to get a matching surface at the bottom of the pulley groove.\r
05:43 The facing cuts didnt quite get to the arbor, so theres a small burr at each end of the hole to take care of. I used this hand held countersink to knock them off. So with the profile complete, its time to sort out the keyway.\r
06:37 I started by feeding in 2 thousandths with each pass to begin with, but as the cut became more established, I had to reduce that to a half thou per cut, and make 3 passes at each depth. I found that any more than that put too much strain on the carriage wheel.\r
07:11 The cutting ion is not unlike that of a\r
shaper; it makes similar looking chips. And it generates quite a clean cut. So with the keyway finished, the pulley is almost complete; It just needs a quick trip to the mill to drill and tap a hole for a set screw.\r
\r
References:\r
MACHINE SHOP TIPS #151 Cutting a Keyway on the Lathe - a new abroach tubalcain\r
\r
\r
Machining A Replacement Pulley With A Keyway, by Clickspring.