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Thread: Lathe Measure Once Cut 10 Times or More

  1. #1
    jjr2001's Avatar
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    Lathe Measure Once Cut 10 Times or More

    Probably not a new idea but I have not seen a setup where two carriage stops are used.
    With this setup you only have to measure the setup once and then just repeat the steps for
    extending, facing, drilling, and cutoff. The cutoff tool is used as the starting point of the part.

    Here is what was cut:
    Lathe Measure Once Cut 10 Times or More-1_img_1550b-copy.jpg

    Left carriage stop is for the final cutoff operation:
    Lathe Measure Once Cut 10 Times or More-2_img_1545b-copy.jpg

    Right carriage stop is used for the stop when extending the stock from the chuck
    The stock is extended until it reaches the left side of the cutoff tool:
    Lathe Measure Once Cut 10 Times or More-3_img_1546b-copy.jpg
    Lathe Measure Once Cut 10 Times or More-4_img_1547b-copy.jpg

    Spacer being drilled without center drilling. Short machine type drill bit used:
    Lathe Measure Once Cut 10 Times or More-5_img_1548b-copy.jpg

    Left carriage stop is used for final cutoff. Note the thickness of the cutoff tool was considered
    when setting the stops. The right hand stop is not using the micrometer adjustment. It is simply
    hitting the extended carriage gibs that I installed on my mini lathe.
    Lathe Measure Once Cut 10 Times or More-6_img_1549b-copy.jpg

  2. The Following 4 Users Say Thank You to jjr2001 For This Useful Post:

    olderdan (01-30-2018), PJs (01-31-2018), rossbotics (01-31-2018), Seedtick (01-30-2018)

  3. #2
    Frank S's Avatar
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    Here is a similar stop that I used to have it came on a lathe I once owned
    Lathe Measure Once Cut 10 Times or More-carriage-stop-maxresdefault.jpg
    Last edited by Frank S; 01-29-2018 at 06:32 PM.
    Never try to tell me it can't be done
    When I have to paint I use http://kbs.justoldtrucks.com/

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    Hi JR

    Thank you for posting. I have two stops on my machine it is so useful for this type of component.
    I hope you don’t mind I have put a link in to my web site showing a similar setup making screws. I use the second stop to travel the saddle towards the tailstock which creates a home position, pull the material out just past the facing tool, face off, this creates the front datum (Z axis). Also, on the first photo there are two tools set in the compound slide tool post, this faces, turns the screw O/D and chamfers at the same time, once you have travelled to the stop at the headstock end. I then finish the screws, using the capstan attachment then rear tool post parts off to length. I have a indexing multi stop I made to support this type of setup I will do a separate post on this. The first photo unfortunately doesn’t show the stop tailstock stop, I could have set a stop in the capstan but it is just another tool that can get in the way.

    Practical Engineering

    Thank you for sharing I like this and I need to make a lot of spacers for a fire grate for one of my engines so will be using your idea.
    The Home Engineer

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    Quote Originally Posted by Frank S View Post
    Here is a similar stop that I used to have it came on a lathe I once owned
    Click image for larger version. 

Name:	carriage stop maxresdefault.jpg 
Views:	218 
Size:	131.3 KB 
ID:	21874
    I have seen them before but have not made one yet. Big advantage I see is actually two fold.
    One is you have a lot of positions instead of only two. The other is the tail stock is not hindered by the
    outboard carriage stop.

    Thanks for posting that one Frank.

    Cheers, JR

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    Homeengineer, Thanks for the link to your web site. I checked out your engine and it is quite a beauty.
    I also noted your multi-stop for the lathe..Great work.
    Thanks for posting.

    Cheers, JR

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    Most logical captain......:O)

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    Thanks jjr2001! We've added your Lathe Cutoff Setup to our Lathes category,
    as well as to your builder page: jjr2001's Homemade Tools. Your receipt:




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    Thanks Frank S! We've added your Lathe Stop to our Lathe Accessories category,
    as well as to your builder page: Frank S's Homemade Tools. Your receipt:




  10. #9

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    Could you direct me to those nice lever-lock carriage stops, please?

  11. The Following User Says Thank You to dgbreggin For This Useful Post:

    jjr2001 (01-30-2018)

  12. #10
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    Sure can. I originally posted them here:
    Mini Lathe Carriage Stops Micrometer and Screw
    The clamps are bicycle seat clamps and are available on eBay and other places on the net.

    Cheers, JR

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