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Winner Homemade Lathe Build Log

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I don't work in the shop on Fridays usually so any work done on Friday is a bonus.

Made a mock spindle and bored it then made a test collet. Worked perfectly, and it fits so well I have to hit the spindle for it to fall out.

Also locktited the bushing to the aluminum back. Hopefully it will hold.

No real need to show this, but I have a picture of it so why not.

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locktiting the bushing in place worked well so I am locktiting the back curve of the slide in place.

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Now drilling the spindle to .150"

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Hole thankfully is straight as an arrow (not in flight!)

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Now I tilted the head to 15* and bored the spindle to get the taper to close the collet. the major diameter of the collet is .250".

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Here you can see it's bored out.

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Now making some collet blanks.
Still have to machine them down some more.

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Before I tilt the head back and tram it, I need to create a master taper so I can set the head back and make more collets or tooling (feels weird saying that for a lathe this small) for it.

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Getting tired of turning on the lathe so I wanted to see some chips fly. Started work on the tailstock.

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Thanks for looking.

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Before I tilt the head back and tram it, I need to create a master taper so I can set the head back and make more collets or tooling (feels weird saying that for a lathe this small) for it.

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Now that's thinking ahead......A very essential part of machining.. Good idea....!:))
The little lathe is coming along, and looking good..!:))
 
Turned the collet blanks down to their shaft diameter.

Who needs pictures when you can have 30 per second? :))

[video=youtube;bKLk09MkGhY]https://www.youtube.com/watch?v=bKLk09MkGhY[/video]

Since there is a bit where the toolbit didn't reach on the last pass I clean them up a bit.

[video=youtube;6LzA0gGf_5k]https://www.youtube.com/watch?v=6LzA0gGf_5k[/video]

Used by height gauge again today, I love using it. Such a timesaver.
 
Awesome. Looked like the whole column was moving with the cam on the table

I was moving the knee up and down, and the camera (Ipod, can't you tell from the horrible pics in this thread:))) was sitting in a T slot.

Worked nicely.
 
Since I need to drill and tap into the backs of the collets for the 4-40 drawbar, I center drilled the backs of the stubs there still on.

Also did a lot on the tailstock today.

Drilled for the 5/16" tailstock ram, worked on the lock to hold the tailstock in place, and started work on the tailstock ram.


Made a little plug to become a lock. These plugs with the notch take awhile to machine. Easy, but they take awhile.

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Some very careful eyeballing a center over a scribe line can get you extremely close. This is a 5/16" shaft on the dot with a 5/16" reamed hole in the tailstock. The spindle slips into the tailstock ram hole perfectly. That means the tailstock is aligned to the spindle probably within a thou or two. Not bad for eyeballing! Okay....I used a 7x Coddington magnifier. But still.

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Next I shortened the tailstock because it's too tall. I would've loved to see this turn into chips flying all over but I like to save every bit of metal I can. Comes in handy later.

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While knocking the corners off with a countersink I had a little crash. The countersink sucked the tailstock out of the vise and chowderd it up. So I had to cut a little off the side to get rid of the little mistake. Thankfully it happened while I had a good bit left to cut, so there was not much to clean up.

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I flycut the sides of the tailstock and it looks really nice.

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I don't plan to turn between centers so I don't need to put a lock on the tailstock ram. But I may in case the need comes up or it's future owner wants too.

Have left to do:

1. Finish tailstock
2. Make stand
3. Make box/motor mount
4. Finish cross slide
5. Toolpost for cross slide
6. Make flatbelt pulleys and some flat belts (flat belts transfer more torque than a V or round belt with less friction)
7. Cut keyway in round bed for tailstock alignment.

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